YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:00,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:00,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:00,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:00,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:00,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:00,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:00,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:00,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:00,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:00,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:00,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:00,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:00,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:00,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:00,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:00,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:00,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:00,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:00,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:00,919 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:00,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:00,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:00,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:00,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:00,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:00,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:00,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:00,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:00,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:00,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:00,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:00,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:00,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:00,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:00,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:00,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:00,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:00,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:00,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:00,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:00,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:00,927 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:00,938 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:00,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:00,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:00,939 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:00,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:00,939 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:00,939 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:00,939 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:00,939 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:00,939 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:00,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:00,940 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:00,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:00,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:00,941 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:00,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:00,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:00,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:00,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:00,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:01,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:01,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:01,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:01,080 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:01,081 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:01,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:01,117 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/96050ac8d6d54ca0b4047d1913b690f3/FLAG627ffab37 [2023-02-13 03:40:01,457 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:01,458 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:01,461 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/96050ac8d6d54ca0b4047d1913b690f3/FLAG627ffab37 [2023-02-13 03:40:01,916 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/96050ac8d6d54ca0b4047d1913b690f3 [2023-02-13 03:40:01,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:01,920 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:01,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:01,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:01,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:01,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:01" (1/1) ... [2023-02-13 03:40:01,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c535235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:01, skipping insertion in model container [2023-02-13 03:40:01,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:01" (1/1) ... [2023-02-13 03:40:01,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:01,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:02,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:02,034 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:02,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:02,048 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:02,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02 WrapperNode [2023-02-13 03:40:02,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:02,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:02,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:02,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:02,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,066 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2023-02-13 03:40:02,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:02,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:02,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:02,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:02,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:02,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:02,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:02,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:02,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:02,088 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,104 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:02,185 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:02,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:02,260 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:02,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:02,267 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:02,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02 BoogieIcfgContainer [2023-02-13 03:40:02,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:02,269 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:02,269 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:02,270 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:02,271 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,279 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2023-02-13 03:40:02,280 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:02,280 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:02,281 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:02,281 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:02,281 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:02,282 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:02,282 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:02,289 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:02,297 INFO L200 BlockEncoder]: SBE split 4 edges [2023-02-13 03:40:02,300 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:02,301 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:02,304 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:02,305 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2023-02-13 03:40:02,306 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:02,306 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:02,307 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:02,307 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:02,307 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 11 edges [2023-02-13 03:40:02,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:02 BasicIcfg [2023-02-13 03:40:02,307 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:02,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:02,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:02,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:02,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:01" (1/4) ... [2023-02-13 03:40:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b090bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (2/4) ... [2023-02-13 03:40:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b090bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02" (3/4) ... [2023-02-13 03:40:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b090bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:02" (4/4) ... [2023-02-13 03:40:02,312 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:02,322 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:02,322 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:02,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b090bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:02,323 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:02,323 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:02,325 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:02,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,325 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:01" (1/4) ... [2023-02-13 03:40:02,326 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66e0d9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,326 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (2/4) ... [2023-02-13 03:40:02,326 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66e0d9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,326 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:02" (3/4) ... [2023-02-13 03:40:02,326 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66e0d9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:02,326 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:02" (4/4) ... [2023-02-13 03:40:02,327 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:02,355 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:02,355 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:02,355 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:02,355 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:02,355 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:02,355 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:02,355 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:02,356 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:02,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:02,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:02,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:02,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:02,371 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:02,371 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:02,371 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:02,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:02,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:02,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:02,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:02,372 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:02,372 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:02,375 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 6#L27-2true [2023-02-13 03:40:02,375 INFO L735 eck$LassoCheckResult]: Loop: 6#L27-2true [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 5#L20true [57] L20-->L27: Formula: (and (> 0 |v_ULTIMATE.start_main_~b~0#1_6|) (= (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 4#L27true [41] L27-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 6#L27-2true [2023-02-13 03:40:02,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:02,379 INFO L85 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times [2023-02-13 03:40:02,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:02,385 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989777597] [2023-02-13 03:40:02,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:02,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,428 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:02,441 INFO L85 PathProgramCache]: Analyzing trace with hash 77727, now seen corresponding path program 1 times [2023-02-13 03:40:02,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:02,441 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721839905] [2023-02-13 03:40:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:02,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,448 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:02,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:02,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2848290, now seen corresponding path program 1 times [2023-02-13 03:40:02,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:02,453 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998489771] [2023-02-13 03:40:02,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:02,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,457 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:02,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:02,510 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:02,510 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:02,510 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:02,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:02,511 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:02,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:02,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:02,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:02,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:02,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:02,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,529 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,531 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,533 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,571 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:02,571 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:02,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,573 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,576 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:02,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,584 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:02,584 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:02,601 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:02,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,602 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,604 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:02,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,615 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:02,615 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:02,642 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:02,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,643 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,645 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:02,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:02,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:02,681 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:40:02,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,682 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,685 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:02,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:02,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:02,723 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:02,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,728 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,730 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:02,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,745 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:02,745 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:02,793 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:02,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,794 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,796 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:02,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:02,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,842 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:02,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:02,843 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,844 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,845 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:02,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:02,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:02,879 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:02,882 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:02,882 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:02,883 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:02,883 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:02,883 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:02,884 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:02,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:02,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:02,885 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:02,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:02,885 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:02,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,919 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,927 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:02,962 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:02,965 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:02,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,966 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,966 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,968 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:02,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:02,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:02,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:02,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:02,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:02,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:02,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:02,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:02,994 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:02,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,995 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:02,995 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:02,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:03,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:03,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:03,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:03,021 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:40:03,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,022 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,023 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,024 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:03,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:03,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:03,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:03,073 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,074 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,080 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:03,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:03,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:03,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:03,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:03,116 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,117 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,118 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,120 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:03,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:03,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:03,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:03,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:03,163 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,163 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,164 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,166 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:03,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:03,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:03,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:03,182 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:03,186 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:03,187 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:03,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,190 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,192 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,194 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:03,194 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:03,195 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:03,195 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:03,196 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:03,223 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:03,231 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:03,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,268 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,379 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:03,384 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:03,385 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:03,523 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 38 transitions. Complement of second has 10 states. [2023-02-13 03:40:03,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:03,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2023-02-13 03:40:03,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:40:03,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:03,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:40:03,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:03,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 38 transitions. [2023-02-13 03:40:03,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:03,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 26 transitions. [2023-02-13 03:40:03,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:40:03,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-13 03:40:03,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 26 transitions. [2023-02-13 03:40:03,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:03,549 INFO L220 hiAutomatonCegarLoop]: Abstraction has 13 states and 26 transitions. [2023-02-13 03:40:03,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 26 transitions. [2023-02-13 03:40:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-02-13 03:40:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 24 transitions. [2023-02-13 03:40:03,565 INFO L242 hiAutomatonCegarLoop]: Abstraction has 11 states and 24 transitions. [2023-02-13 03:40:03,565 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 24 transitions. [2023-02-13 03:40:03,565 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:03,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 24 transitions. [2023-02-13 03:40:03,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:03,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:03,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:03,566 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:03,566 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:03,566 INFO L733 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 80#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 85#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 77#L22 [2023-02-13 03:40:03,566 INFO L735 eck$LassoCheckResult]: Loop: 77#L22 [38] L22-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet4#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1] 78#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 87#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 77#L22 [2023-02-13 03:40:03,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash 91866, now seen corresponding path program 1 times [2023-02-13 03:40:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,567 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549374658] [2023-02-13 03:40:03,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,570 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash 67841, now seen corresponding path program 1 times [2023-02-13 03:40:03,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,573 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517453013] [2023-02-13 03:40:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,576 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1558149240, now seen corresponding path program 1 times [2023-02-13 03:40:03,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,579 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395136435] [2023-02-13 03:40:03,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,583 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,605 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:03,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:03,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:03,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:03,605 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:03,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:03,606 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:03,606 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:03,606 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:03,606 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:03,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,608 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,612 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,621 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,651 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:03,651 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:03,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,652 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,656 INFO L229 MonitoredProcess]: Starting monitored process 16 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,656 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:40:03,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,665 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,665 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,688 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,689 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,689 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,690 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:40:03,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,719 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:40:03,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,720 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,721 INFO L229 MonitoredProcess]: Starting monitored process 18 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,721 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:03,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:03,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,768 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:03,770 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:03,770 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:03,771 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:03,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:03,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:03,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:03,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:03,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:03,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:03,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:03,773 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:03,775 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,779 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,787 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,789 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,791 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,795 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,831 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:03,831 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:03,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,831 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,833 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,834 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:03,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:03,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:03,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:03,862 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:03,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,862 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,863 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,866 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:03,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:03,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:03,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:03,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:03,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:03,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:03,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:03,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:03,874 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:03,877 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:03,877 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:03,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:03,877 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,878 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,879 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:03,880 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:03,880 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:03,880 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:03,880 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~n~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:03,908 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:03,909 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:03,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:03,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:03,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:03,987 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:03,988 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:03,988 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 24 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,022 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 24 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 46 transitions. Complement of second has 8 states. [2023-02-13 03:40:04,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:04,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2023-02-13 03:40:04,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 3 letters. Loop has 3 letters. [2023-02-13 03:40:04,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:04,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2023-02-13 03:40:04,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:04,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 3 letters. Loop has 6 letters. [2023-02-13 03:40:04,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:04,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 46 transitions. [2023-02-13 03:40:04,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-13 03:40:04,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 38 transitions. [2023-02-13 03:40:04,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-13 03:40:04,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-13 03:40:04,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 38 transitions. [2023-02-13 03:40:04,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:04,036 INFO L220 hiAutomatonCegarLoop]: Abstraction has 16 states and 38 transitions. [2023-02-13 03:40:04,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 38 transitions. [2023-02-13 03:40:04,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-13 03:40:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 38 transitions. [2023-02-13 03:40:04,040 INFO L242 hiAutomatonCegarLoop]: Abstraction has 16 states and 38 transitions. [2023-02-13 03:40:04,040 INFO L426 stractBuchiCegarLoop]: Abstraction has 16 states and 38 transitions. [2023-02-13 03:40:04,040 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:04,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 38 transitions. [2023-02-13 03:40:04,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-13 03:40:04,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:04,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:04,042 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:04,042 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2023-02-13 03:40:04,042 INFO L733 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 163#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 171#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 158#L22 [2023-02-13 03:40:04,043 INFO L735 eck$LassoCheckResult]: Loop: 158#L22 [38] L22-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet4#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1] 160#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 169#L20 [57] L20-->L27: Formula: (and (> 0 |v_ULTIMATE.start_main_~b~0#1_6|) (= (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 164#L27 [41] L27-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 165#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 173#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 158#L22 [2023-02-13 03:40:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash 91866, now seen corresponding path program 2 times [2023-02-13 03:40:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,044 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071383968] [2023-02-13 03:40:04,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,049 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2021479447, now seen corresponding path program 1 times [2023-02-13 03:40:04,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,054 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532514355] [2023-02-13 03:40:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:04,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:04,077 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532514355] [2023-02-13 03:40:04,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532514355] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:04,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:04,077 ERROR L191 FreeRefinementEngine]: {177#true} [177#true, 177#true, 179#(<= (+ |ULTIMATE.start_main_~b~0#1| 1) 0), 179#(<= (+ |ULTIMATE.start_main_~b~0#1| 1) 0), 179#(<= (+ |ULTIMATE.start_main_~b~0#1| 1) 0)] {178#false} [2023-02-13 03:40:04,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:04,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044021098] [2023-02-13 03:40:04,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:04,079 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:04,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:04,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:04,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:04,081 INFO L87 Difference]: Start difference. First operand 16 states and 38 transitions. cyclomatic complexity: 24 Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:04,095 INFO L93 Difference]: Finished difference Result 24 states and 52 transitions. [2023-02-13 03:40:04,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 52 transitions. [2023-02-13 03:40:04,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-02-13 03:40:04,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 22 states and 50 transitions. [2023-02-13 03:40:04,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-02-13 03:40:04,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-13 03:40:04,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 50 transitions. [2023-02-13 03:40:04,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:04,098 INFO L220 hiAutomatonCegarLoop]: Abstraction has 22 states and 50 transitions. [2023-02-13 03:40:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 50 transitions. [2023-02-13 03:40:04,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-13 03:40:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 50 transitions. [2023-02-13 03:40:04,102 INFO L242 hiAutomatonCegarLoop]: Abstraction has 22 states and 50 transitions. [2023-02-13 03:40:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:04,103 INFO L426 stractBuchiCegarLoop]: Abstraction has 22 states and 50 transitions. [2023-02-13 03:40:04,103 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:04,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 50 transitions. [2023-02-13 03:40:04,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-02-13 03:40:04,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:04,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:04,104 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:04,104 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2023-02-13 03:40:04,104 INFO L733 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 209#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 221#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 204#L22 [2023-02-13 03:40:04,105 INFO L735 eck$LassoCheckResult]: Loop: 204#L22 [38] L22-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet4#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1] 206#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 219#L20 [58] L20-->L27: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|) (< 0 |v_ULTIMATE.start_main_~b~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 210#L27 [41] L27-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 211#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 225#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 204#L22 [2023-02-13 03:40:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash 91866, now seen corresponding path program 3 times [2023-02-13 03:40:04,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,105 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688463121] [2023-02-13 03:40:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,109 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2021509238, now seen corresponding path program 1 times [2023-02-13 03:40:04,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,114 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489514454] [2023-02-13 03:40:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:04,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:04,125 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489514454] [2023-02-13 03:40:04,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489514454] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:04,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:04,125 ERROR L191 FreeRefinementEngine]: {229#true} [229#true, 229#true, 231#(<= 1 |ULTIMATE.start_main_~b~0#1|), 231#(<= 1 |ULTIMATE.start_main_~b~0#1|), 231#(<= 1 |ULTIMATE.start_main_~b~0#1|)] {230#false} [2023-02-13 03:40:04,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:04,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650451153] [2023-02-13 03:40:04,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:04,126 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:04,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:04,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:04,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:04,126 INFO L87 Difference]: Start difference. First operand 22 states and 50 transitions. cyclomatic complexity: 30 Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:04,135 INFO L93 Difference]: Finished difference Result 32 states and 58 transitions. [2023-02-13 03:40:04,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 58 transitions. [2023-02-13 03:40:04,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-02-13 03:40:04,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 28 states and 51 transitions. [2023-02-13 03:40:04,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-02-13 03:40:04,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-02-13 03:40:04,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 51 transitions. [2023-02-13 03:40:04,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:04,137 INFO L220 hiAutomatonCegarLoop]: Abstraction has 28 states and 51 transitions. [2023-02-13 03:40:04,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 51 transitions. [2023-02-13 03:40:04,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-02-13 03:40:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 25 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 49 transitions. [2023-02-13 03:40:04,138 INFO L242 hiAutomatonCegarLoop]: Abstraction has 26 states and 49 transitions. [2023-02-13 03:40:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:04,139 INFO L426 stractBuchiCegarLoop]: Abstraction has 26 states and 49 transitions. [2023-02-13 03:40:04,139 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:04,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 49 transitions. [2023-02-13 03:40:04,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-02-13 03:40:04,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:04,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:04,140 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:04,140 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2023-02-13 03:40:04,140 INFO L733 eck$LassoCheckResult]: Stem: 269#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 270#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 279#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 264#L22 [2023-02-13 03:40:04,140 INFO L735 eck$LassoCheckResult]: Loop: 264#L22 [38] L22-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet4#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1] 266#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 284#L20 [57] L20-->L27: Formula: (and (> 0 |v_ULTIMATE.start_main_~b~0#1_6|) (= (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 283#L27 [61] L27-->L27-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet5#1_3| 0) (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) (= 0 |v_ULTIMATE.start_main_~b~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_~b~0#1] 272#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 281#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 264#L22 [2023-02-13 03:40:04,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,141 INFO L85 PathProgramCache]: Analyzing trace with hash 91866, now seen corresponding path program 4 times [2023-02-13 03:40:04,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,141 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722802619] [2023-02-13 03:40:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,144 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2021498667, now seen corresponding path program 1 times [2023-02-13 03:40:04,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,146 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285380453] [2023-02-13 03:40:04,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,149 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:04,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:04,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1182973764, now seen corresponding path program 1 times [2023-02-13 03:40:04,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:04,153 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869603664] [2023-02-13 03:40:04,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:04,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,177 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:04,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:04,177 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869603664] [2023-02-13 03:40:04,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869603664] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:04,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:04,178 ERROR L191 FreeRefinementEngine]: {295#true} [295#true, 295#true, 297#(<= 0 |ULTIMATE.start_main_~b~0#1|), 297#(<= 0 |ULTIMATE.start_main_~b~0#1|), 297#(<= 0 |ULTIMATE.start_main_~b~0#1|), 296#false, 296#false, 296#false] {296#false} [2023-02-13 03:40:04,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:40:04,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272261567] [2023-02-13 03:40:04,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:04,181 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:40:04,197 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:04,221 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:04,222 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:04,222 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:04,222 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:04,222 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:04,222 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,222 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:04,222 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:04,222 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:04,222 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:04,222 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:04,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,229 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,234 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,236 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,270 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:04,270 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:04,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,271 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,272 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,273 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:40:04,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:04,286 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=1} Honda state: {ULTIMATE.start_main_#t~nondet5#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:04,306 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:40:04,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,307 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,308 INFO L229 MonitoredProcess]: Starting monitored process 23 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,310 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:40:04,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,318 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:04,318 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:04,332 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:40:04,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,333 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,334 INFO L229 MonitoredProcess]: Starting monitored process 24 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,336 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:40:04,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,343 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:04,343 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:04,365 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:04,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,366 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,366 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,368 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:04,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,380 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:04,380 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:04,402 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:04,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,403 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,403 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,405 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:40:04,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,413 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:04,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:04,450 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-13 03:40:04,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,450 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,451 INFO L229 MonitoredProcess]: Starting monitored process 27 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,453 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-13 03:40:04,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:04,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,488 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-13 03:40:04,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:04,489 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,490 INFO L229 MonitoredProcess]: Starting monitored process 28 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,492 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:40:04,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:04,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:04,556 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:04,558 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:40:04,558 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:04,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:04,559 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:04,559 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:04,559 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:04,559 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:04,560 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:04,560 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:40:04,560 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:04,560 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:04,563 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,567 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,570 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,573 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,587 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:04,670 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:04,671 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:04,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,672 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,673 INFO L229 MonitoredProcess]: Starting monitored process 29 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,677 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:40:04,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:04,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:04,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:04,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:04,724 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-13 03:40:04,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,725 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,726 INFO L229 MonitoredProcess]: Starting monitored process 30 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,728 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-13 03:40:04,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:04,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:04,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:04,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:04,773 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:04,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,774 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,775 INFO L229 MonitoredProcess]: Starting monitored process 31 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,777 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-13 03:40:04,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:04,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:04,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:04,813 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-02-13 03:40:04,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,814 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,815 INFO L229 MonitoredProcess]: Starting monitored process 32 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,817 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-13 03:40:04,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:04,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:04,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:04,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:04,843 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:04,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,844 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,845 INFO L229 MonitoredProcess]: Starting monitored process 33 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,847 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-13 03:40:04,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:04,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:04,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:04,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:04,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:04,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:04,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:04,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:04,859 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:04,862 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:40:04,863 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:04,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:04,863 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:04,865 INFO L229 MonitoredProcess]: Starting monitored process 34 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:04,867 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-13 03:40:04,867 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:04,868 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:04,868 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:04,868 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:04,903 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-02-13 03:40:04,904 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:04,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:04,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:04,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:04,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:04,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,054 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 6 predicates after loop cannibalization [2023-02-13 03:40:05,055 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-02-13 03:40:05,055 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 26 states and 49 transitions. cyclomatic complexity: 25 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,183 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 26 states and 49 transitions. cyclomatic complexity: 25. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 98 states and 183 transitions. Complement of second has 24 states. [2023-02-13 03:40:05,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:05,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2023-02-13 03:40:05,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 3 letters. Loop has 6 letters. [2023-02-13 03:40:05,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:05,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 9 letters. Loop has 6 letters. [2023-02-13 03:40:05,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:05,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 3 letters. Loop has 12 letters. [2023-02-13 03:40:05,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:05,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 183 transitions. [2023-02-13 03:40:05,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:05,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 45 states and 79 transitions. [2023-02-13 03:40:05,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-13 03:40:05,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-02-13 03:40:05,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 79 transitions. [2023-02-13 03:40:05,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:05,202 INFO L220 hiAutomatonCegarLoop]: Abstraction has 45 states and 79 transitions. [2023-02-13 03:40:05,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 79 transitions. [2023-02-13 03:40:05,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 29. [2023-02-13 03:40:05,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 28 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 60 transitions. [2023-02-13 03:40:05,207 INFO L242 hiAutomatonCegarLoop]: Abstraction has 29 states and 60 transitions. [2023-02-13 03:40:05,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:05,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:05,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:05,208 INFO L87 Difference]: Start difference. First operand 29 states and 60 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:05,223 INFO L93 Difference]: Finished difference Result 31 states and 62 transitions. [2023-02-13 03:40:05,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 62 transitions. [2023-02-13 03:40:05,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:05,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 62 transitions. [2023-02-13 03:40:05,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:40:05,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:40:05,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 62 transitions. [2023-02-13 03:40:05,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:05,224 INFO L220 hiAutomatonCegarLoop]: Abstraction has 31 states and 62 transitions. [2023-02-13 03:40:05,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 62 transitions. [2023-02-13 03:40:05,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2023-02-13 03:40:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 2.107142857142857) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 59 transitions. [2023-02-13 03:40:05,226 INFO L242 hiAutomatonCegarLoop]: Abstraction has 28 states and 59 transitions. [2023-02-13 03:40:05,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:05,228 INFO L426 stractBuchiCegarLoop]: Abstraction has 28 states and 59 transitions. [2023-02-13 03:40:05,228 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:40:05,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 59 transitions. [2023-02-13 03:40:05,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:05,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:05,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:05,230 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:05,230 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:05,230 INFO L733 eck$LassoCheckResult]: Stem: 573#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 574#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 579#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 580#L22 [60] L22-->L27-2: Formula: (and (> |v_ULTIMATE.start_main_#t~nondet4#1_3| 0) (= 1 |v_ULTIMATE.start_main_~b~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_3|} OutVars{ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~b~0#1] 569#L27-2 [2023-02-13 03:40:05,230 INFO L735 eck$LassoCheckResult]: Loop: 569#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 582#L20 [58] L20-->L27: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|) (< 0 |v_ULTIMATE.start_main_~b~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 575#L27 [41] L27-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 569#L27-2 [2023-02-13 03:40:05,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2847906, now seen corresponding path program 1 times [2023-02-13 03:40:05,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:05,232 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66962395] [2023-02-13 03:40:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:05,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,239 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,244 INFO L85 PathProgramCache]: Analyzing trace with hash 77758, now seen corresponding path program 1 times [2023-02-13 03:40:05,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:05,245 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425274430] [2023-02-13 03:40:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:05,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,249 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:05,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1057330307, now seen corresponding path program 1 times [2023-02-13 03:40:05,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:05,253 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250321021] [2023-02-13 03:40:05,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:05,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,257 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:05,276 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:05,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:05,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:05,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:05,276 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:05,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:05,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:05,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:05,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:05,277 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:05,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,283 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,285 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,286 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,312 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:05,312 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:05,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,313 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,313 INFO L229 MonitoredProcess]: Starting monitored process 35 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,317 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-13 03:40:05,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:05,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,346 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:05,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,347 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,347 INFO L229 MonitoredProcess]: Starting monitored process 36 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,349 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-13 03:40:05,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:05,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,393 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:05,395 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-02-13 03:40:05,395 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:05,396 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:05,396 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:05,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:05,396 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:05,397 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:05,397 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:05,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:05,397 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2023-02-13 03:40:05,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:05,398 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:05,400 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,407 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,413 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,465 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:05,465 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:05,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:05,466 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,467 INFO L229 MonitoredProcess]: Starting monitored process 37 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,470 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-13 03:40:05,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:05,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:05,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:05,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:05,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:05,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:05,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:05,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:05,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:05,490 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:05,490 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:05,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:05,491 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,492 INFO L229 MonitoredProcess]: Starting monitored process 38 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,494 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-13 03:40:05,494 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:05,495 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:05,495 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:05,496 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:05,532 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:05,532 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:05,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:05,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:05,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:05,635 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:05,636 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:05,636 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 28 states and 59 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,730 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 28 states and 59 transitions. cyclomatic complexity: 36. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 120 states and 203 transitions. Complement of second has 22 states. [2023-02-13 03:40:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2023-02-13 03:40:05,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:05,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:05,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 7 letters. Loop has 3 letters. [2023-02-13 03:40:05,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:05,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 6 letters. [2023-02-13 03:40:05,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:05,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 203 transitions. [2023-02-13 03:40:05,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:40:05,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 64 states and 114 transitions. [2023-02-13 03:40:05,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-02-13 03:40:05,744 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-02-13 03:40:05,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 114 transitions. [2023-02-13 03:40:05,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:05,744 INFO L220 hiAutomatonCegarLoop]: Abstraction has 64 states and 114 transitions. [2023-02-13 03:40:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 114 transitions. [2023-02-13 03:40:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 33. [2023-02-13 03:40:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 2.0) internal successors, (66), 32 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 66 transitions. [2023-02-13 03:40:05,757 INFO L242 hiAutomatonCegarLoop]: Abstraction has 33 states and 66 transitions. [2023-02-13 03:40:05,757 INFO L426 stractBuchiCegarLoop]: Abstraction has 33 states and 66 transitions. [2023-02-13 03:40:05,758 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-13 03:40:05,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 66 transitions. [2023-02-13 03:40:05,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:05,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:05,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:05,759 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:05,759 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:05,759 INFO L733 eck$LassoCheckResult]: Stem: 794#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 795#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 807#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 819#L22 [59] L22-->L27-2: Formula: (and (< |v_ULTIMATE.start_main_#t~nondet4#1_3| 0) (= 1 |v_ULTIMATE.start_main_~b~0#1_5|)) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_3|} OutVars{ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~b~0#1] 789#L27-2 [2023-02-13 03:40:05,759 INFO L735 eck$LassoCheckResult]: Loop: 789#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 804#L20 [58] L20-->L27: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|) (< 0 |v_ULTIMATE.start_main_~b~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 796#L27 [41] L27-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 789#L27-2 [2023-02-13 03:40:05,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2847905, now seen corresponding path program 1 times [2023-02-13 03:40:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:05,761 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873549760] [2023-02-13 03:40:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:05,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,765 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:05,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,768 INFO L85 PathProgramCache]: Analyzing trace with hash 77758, now seen corresponding path program 2 times [2023-02-13 03:40:05,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:05,768 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165709417] [2023-02-13 03:40:05,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:05,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,771 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:05,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:05,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1057360098, now seen corresponding path program 1 times [2023-02-13 03:40:05,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:05,774 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019181002] [2023-02-13 03:40:05,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:05,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,777 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:05,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:05,786 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-02-13 03:40:05,801 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-02-13 03:40:05,802 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:05,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:05,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:05,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:05,803 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:05,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:05,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:05,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2023-02-13 03:40:05,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:05,803 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:05,803 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,806 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,807 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,808 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:05,831 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:05,832 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:05,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,832 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,833 INFO L229 MonitoredProcess]: Starting monitored process 39 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,834 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-13 03:40:05,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:05,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:05,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:05,879 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:05,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,879 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,880 INFO L229 MonitoredProcess]: Starting monitored process 40 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,882 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-13 03:40:05,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:05,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,891 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:05,891 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=1} Honda state: {ULTIMATE.start_main_~b~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:05,906 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:05,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,906 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,907 INFO L229 MonitoredProcess]: Starting monitored process 41 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,908 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-13 03:40:05,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:05,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,915 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:05,915 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:05,934 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-02-13 03:40:05,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,934 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,935 INFO L229 MonitoredProcess]: Starting monitored process 42 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,937 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-13 03:40:05,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:05,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:05,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:05,955 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:05,982 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-13 03:40:05,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:05,983 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:05,984 INFO L229 MonitoredProcess]: Starting monitored process 43 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:05,985 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-02-13 03:40:05,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:05,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,002 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,003 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,031 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,032 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,033 INFO L229 MonitoredProcess]: Starting monitored process 44 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,034 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-02-13 03:40:06,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,085 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-02-13 03:40:06,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,086 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,087 INFO L229 MonitoredProcess]: Starting monitored process 45 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,089 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-02-13 03:40:06,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:06,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,120 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:06,122 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-02-13 03:40:06,122 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:06,122 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:06,122 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:06,123 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:06,123 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:06,123 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,123 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:06,124 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:06,124 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2023-02-13 03:40:06,124 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:06,124 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:06,126 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,129 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,187 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:06,188 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:06,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,188 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,190 INFO L229 MonitoredProcess]: Starting monitored process 46 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,192 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-02-13 03:40:06,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:06,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:06,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:06,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:06,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:06,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:06,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:06,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:06,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:06,241 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,242 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,243 INFO L229 MonitoredProcess]: Starting monitored process 47 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,245 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-02-13 03:40:06,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:06,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:06,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:06,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:06,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:06,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:06,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:06,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:06,290 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,292 INFO L229 MonitoredProcess]: Starting monitored process 48 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:06,295 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-02-13 03:40:06,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:06,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:06,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:06,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:06,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:06,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:06,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:06,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:06,339 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-02-13 03:40:06,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,340 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,341 INFO L229 MonitoredProcess]: Starting monitored process 49 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:06,344 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-02-13 03:40:06,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:06,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:06,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:06,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:06,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:06,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:06,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:06,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:06,393 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-02-13 03:40:06,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,394 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,395 INFO L229 MonitoredProcess]: Starting monitored process 50 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,398 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-02-13 03:40:06,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:06,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:06,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:06,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:06,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:06,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:06,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:06,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:06,434 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,435 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,436 INFO L229 MonitoredProcess]: Starting monitored process 51 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:06,439 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-02-13 03:40:06,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:06,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:06,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:06,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:06,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:06,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:06,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:06,448 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:06,450 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:06,451 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:06,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:06,452 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,453 INFO L229 MonitoredProcess]: Starting monitored process 52 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,459 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:06,460 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-02-13 03:40:06,460 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:06,460 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:06,460 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:06,481 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-02-13 03:40:06,482 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:06,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:06,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:06,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:06,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:06,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:06,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:06,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:06,593 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:06,594 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:06,594 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 33 states and 66 transitions. cyclomatic complexity: 38 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:06,676 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 33 states and 66 transitions. cyclomatic complexity: 38. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 137 states and 228 transitions. Complement of second has 22 states. [2023-02-13 03:40:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2023-02-13 03:40:06,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:06,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:06,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 7 letters. Loop has 3 letters. [2023-02-13 03:40:06,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:06,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 6 letters. [2023-02-13 03:40:06,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:06,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 228 transitions. [2023-02-13 03:40:06,684 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:40:06,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 75 states and 130 transitions. [2023-02-13 03:40:06,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-02-13 03:40:06,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-02-13 03:40:06,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 130 transitions. [2023-02-13 03:40:06,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:06,687 INFO L220 hiAutomatonCegarLoop]: Abstraction has 75 states and 130 transitions. [2023-02-13 03:40:06,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 130 transitions. [2023-02-13 03:40:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 33. [2023-02-13 03:40:06,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 32 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:06,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 63 transitions. [2023-02-13 03:40:06,691 INFO L242 hiAutomatonCegarLoop]: Abstraction has 33 states and 63 transitions. [2023-02-13 03:40:06,691 INFO L426 stractBuchiCegarLoop]: Abstraction has 33 states and 63 transitions. [2023-02-13 03:40:06,691 INFO L333 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-13 03:40:06,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 63 transitions. [2023-02-13 03:40:06,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:06,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:06,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:06,693 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:06,693 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:06,693 INFO L733 eck$LassoCheckResult]: Stem: 1036#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L27-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~b~0#1] 1037#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 1044#L20 [44] L20-->L22: Formula: (and (= 0 |v_ULTIMATE.start_main_~b~0#1_4|) (= (+ |v_ULTIMATE.start_main_~y~0#1_7| 1) |v_ULTIMATE.start_main_~y~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 1061#L22 [38] L22-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet4#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1] 1031#L27-2 [2023-02-13 03:40:06,693 INFO L735 eck$LassoCheckResult]: Loop: 1031#L27-2 [48] L27-2-->L20: Formula: (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~n~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 1045#L20 [58] L20-->L27: Formula: (and (= (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_9|) |v_ULTIMATE.start_main_~y~0#1_8|) (< 0 |v_ULTIMATE.start_main_~b~0#1_6|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|, ULTIMATE.start_main_~b~0#1=|v_ULTIMATE.start_main_~b~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 1038#L27 [41] L27-->L27-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_5| 0) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_5|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 1031#L27-2 [2023-02-13 03:40:06,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:06,694 INFO L85 PathProgramCache]: Analyzing trace with hash 2847884, now seen corresponding path program 2 times [2023-02-13 03:40:06,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:06,694 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141083144] [2023-02-13 03:40:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:06,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:06,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:06,702 INFO L85 PathProgramCache]: Analyzing trace with hash 77758, now seen corresponding path program 3 times [2023-02-13 03:40:06,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:06,702 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908830531] [2023-02-13 03:40:06,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:06,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:06,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:06,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:06,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1057985709, now seen corresponding path program 1 times [2023-02-13 03:40:06,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:06,708 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704985365] [2023-02-13 03:40:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:06,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:06,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:06,717 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704985365] [2023-02-13 03:40:06,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704985365] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:06,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:06,717 ERROR L191 FreeRefinementEngine]: {1067#true} [1067#true, 1067#true, 1069#(<= |ULTIMATE.start_main_~b~0#1| 0), 1069#(<= |ULTIMATE.start_main_~b~0#1| 0), 1069#(<= |ULTIMATE.start_main_~b~0#1| 0), 1068#false] {1068#false} [2023-02-13 03:40:06,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:40:06,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130903638] [2023-02-13 03:40:06,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:06,738 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:06,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:06,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:06,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:06,739 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:06,739 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:06,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:06,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Loop [2023-02-13 03:40:06,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:06,739 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:06,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,748 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,753 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:06,782 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:06,782 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:06,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,782 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,783 INFO L229 MonitoredProcess]: Starting monitored process 53 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,785 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-02-13 03:40:06,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,792 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,822 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-02-13 03:40:06,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,823 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,823 INFO L229 MonitoredProcess]: Starting monitored process 54 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,825 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-02-13 03:40:06,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,835 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,836 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=1} Honda state: {ULTIMATE.start_main_~b~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,873 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-02-13 03:40:06,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,874 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,875 INFO L229 MonitoredProcess]: Starting monitored process 55 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,878 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-02-13 03:40:06,878 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,897 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,897 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,929 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-02-13 03:40:06,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,929 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,931 INFO L229 MonitoredProcess]: Starting monitored process 56 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,934 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-02-13 03:40:06,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:06,950 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:06,950 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:06,987 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:06,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:06,988 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:06,989 INFO L229 MonitoredProcess]: Starting monitored process 57 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:06,992 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-02-13 03:40:06,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:06,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:07,016 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-02-13 03:40:07,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:07,017 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,019 INFO L229 MonitoredProcess]: Starting monitored process 58 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,022 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-02-13 03:40:07,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:07,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:07,069 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:07,070 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:07,071 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:07,071 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:07,071 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:07,071 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:07,072 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:07,072 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,072 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:07,072 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:07,072 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Loop [2023-02-13 03:40:07,072 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:07,073 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:07,074 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,081 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,083 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,089 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,091 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:07,141 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:07,142 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:07,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,143 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,144 INFO L229 MonitoredProcess]: Starting monitored process 59 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,147 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-02-13 03:40:07,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:07,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:07,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:07,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:07,212 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2023-02-13 03:40:07,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,213 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,214 INFO L229 MonitoredProcess]: Starting monitored process 60 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,218 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-02-13 03:40:07,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:07,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:07,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:07,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:07,270 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2023-02-13 03:40:07,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,271 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,272 INFO L229 MonitoredProcess]: Starting monitored process 61 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,275 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-02-13 03:40:07,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:07,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:07,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:07,307 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-02-13 03:40:07,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,308 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,309 INFO L229 MonitoredProcess]: Starting monitored process 62 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:07,312 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-02-13 03:40:07,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:07,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:07,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:07,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:07,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:07,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:07,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:07,321 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:07,325 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:07,325 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:07,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:07,325 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:07,326 INFO L229 MonitoredProcess]: Starting monitored process 63 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:07,328 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:07,328 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:07,328 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:07,328 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:07,328 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-02-13 03:40:07,362 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-02-13 03:40:07,363 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:07,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:07,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:07,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:07,460 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:07,461 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:07,461 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 33 states and 63 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:07,531 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 33 states and 63 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 119 states and 191 transitions. Complement of second has 22 states. [2023-02-13 03:40:07,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2023-02-13 03:40:07,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:07,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:07,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 7 letters. Loop has 3 letters. [2023-02-13 03:40:07,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:07,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 6 letters. [2023-02-13 03:40:07,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:07,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 191 transitions. [2023-02-13 03:40:07,540 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:07,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 0 states and 0 transitions. [2023-02-13 03:40:07,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:07,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:07,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:07,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:07,542 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:07,542 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:07,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:07,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:07,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:07,544 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:07,544 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-02-13 03:40:07,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-02-13 03:40:07,544 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:07,545 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-02-13 03:40:07,545 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:07,545 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:07,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:07,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:07,546 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:07,546 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:07,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-13 03:40:07,547 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:07,547 INFO L333 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-02-13 03:40:07,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:07,548 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:07,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:07,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:07 BasicIcfg [2023-02-13 03:40:07,558 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:07,559 INFO L158 Benchmark]: Toolchain (without parser) took 5638.65ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 461.4MB). Free memory was 2.1GB in the beginning and 2.3GB in the end (delta: -155.6MB). Peak memory consumption was 305.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:07,559 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:07,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 125.87ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:07,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.29ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:07,560 INFO L158 Benchmark]: Boogie Preprocessor took 9.13ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 957.5kB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:07,560 INFO L158 Benchmark]: RCFGBuilder took 191.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:07,561 INFO L158 Benchmark]: BlockEncodingV2 took 38.73ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:07,561 INFO L158 Benchmark]: TraceAbstraction took 14.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:07,561 INFO L158 Benchmark]: BuchiAutomizer took 5235.53ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 461.4MB). Free memory was 2.1GB in the beginning and 2.3GB in the end (delta: -187.0MB). Peak memory consumption was 272.3MB. Max. memory is 42.9GB. [2023-02-13 03:40:07,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 11 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 125.87ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 18.29ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 9.13ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 957.5kB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 191.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 38.73ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 14.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 5235.53ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 461.4MB). Free memory was 2.1GB in the beginning and 2.3GB in the end (delta: -187.0MB). Peak memory consumption was 272.3MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (4 trivial, 0 deterministic, 6 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 6 locations. One nondeterministic module has affine ranking function 2 * n + -2 * y + 1 and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 6 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 6 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 3.7s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 96 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 120 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 318 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 58 mSDtfsCounter, 318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT4 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax151 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 20 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:40:07,608 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-02-13 03:40:07,806 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:08,009 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Ended with exit code 0 Received shutdown request...