YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:41:00,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:41:00,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:41:00,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:41:00,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:41:00,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:41:00,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:41:00,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:41:00,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:41:00,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:41:00,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:41:00,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:41:00,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:41:00,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:41:00,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:41:00,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:41:00,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:41:00,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:41:00,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:41:00,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:41:00,933 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:41:00,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:41:00,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:41:00,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:41:00,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:41:00,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:41:00,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:41:00,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:41:00,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:41:00,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:41:00,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:41:00,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:41:00,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:41:00,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:41:00,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:41:00,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:41:00,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:41:00,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:41:00,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:41:00,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:41:00,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:41:00,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:41:00,943 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:41:00,953 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:41:00,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:41:00,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:41:00,954 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:41:00,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:41:00,954 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:00,954 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:41:00,954 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:00,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:41:00,955 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:41:00,956 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:41:00,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:41:00,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:41:00,956 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:41:00,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:00,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:41:00,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:41:00,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:41:00,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:41:01,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:41:01,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:41:01,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:41:01,094 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:41:01,094 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:41:01,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,139 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/158be2fc6b224afca024815e9669f3ca/FLAG013fac988 [2023-02-13 03:41:01,496 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:41:01,496 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,502 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/158be2fc6b224afca024815e9669f3ca/FLAG013fac988 [2023-02-13 03:41:01,957 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/158be2fc6b224afca024815e9669f3ca [2023-02-13 03:41:01,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:41:01,962 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:41:01,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:01,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:41:01,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:41:01,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4342db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:41:01,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:41:02,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:02,080 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:41:02,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:02,093 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:41:02,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02 WrapperNode [2023-02-13 03:41:02,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:02,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:02,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:41:02,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:41:02,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,109 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2023-02-13 03:41:02,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:02,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:41:02,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:41:02,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:41:02,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:41:02,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:41:02,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:41:02,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:41:02,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:02,143 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,155 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 03:41:02,165 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 03:41:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:41:02,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:41:02,297 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:41:02,300 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:41:02,364 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:41:02,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:41:02,369 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-13 03:41:02,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02 BoogieIcfgContainer [2023-02-13 03:41:02,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:41:02,371 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:41:02,371 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:41:02,372 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:41:02,373 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02" (1/1) ... [2023-02-13 03:41:02,386 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2023-02-13 03:41:02,387 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:41:02,388 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:41:02,388 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:41:02,388 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:02,389 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:41:02,390 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:41:02,390 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:41:02,399 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:41:02,405 INFO L200 BlockEncoder]: SBE split 4 edges [2023-02-13 03:41:02,407 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2023-02-13 03:41:02,408 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:02,412 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:41:02,413 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:41:02,414 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:41:02,414 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:02,414 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:41:02,414 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:41:02,415 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 11 edges [2023-02-13 03:41:02,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02 BasicIcfg [2023-02-13 03:41:02,415 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:41:02,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:41:02,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:41:02,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:41:02,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:02,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6337dc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (2/4) ... [2023-02-13 03:41:02,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6337dc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02" (3/4) ... [2023-02-13 03:41:02,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6337dc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02" (4/4) ... [2023-02-13 03:41:02,419 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:02,428 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:41:02,429 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:41:02,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6337dc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:41:02,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:41:02,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:41:02,432 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:41:02,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,432 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:02,432 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41927e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:02" (2/4) ... [2023-02-13 03:41:02,433 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41927e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:02" (3/4) ... [2023-02-13 03:41:02,433 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41927e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02" (4/4) ... [2023-02-13 03:41:02,434 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:02,461 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:41:02,461 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:41:02,461 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:41:02,461 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:41:02,461 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:41:02,461 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:41:02,461 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:41:02,461 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:41:02,464 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 03:41:02,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:41:02,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,477 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:02,477 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:41:02,477 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:41:02,477 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 03:41:02,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:41:02,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,478 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:02,478 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:41:02,480 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [72] ULTIMATE.startENTRY-->L23-3: 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_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, 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|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 5#L23-3true [2023-02-13 03:41:02,481 INFO L735 eck$LassoCheckResult]: Loop: 5#L23-3true [55] L23-3-->L19-2: Formula: (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[] 2#L19-2true [64] L19-2-->L19-3: Formula: (> 0 |v_ULTIMATE.start_main_~y~0#1_6|) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[] 6#L19-3true [57] L19-3-->L23-2: Formula: (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 4#L23-2true [68] L23-2-->L23-3: 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] 5#L23-3true [2023-02-13 03:41:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,484 INFO L85 PathProgramCache]: Analyzing trace with hash 103, now seen corresponding path program 1 times [2023-02-13 03:41:02,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,490 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318623489] [2023-02-13 03:41:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2625365, now seen corresponding path program 1 times [2023-02-13 03:41:02,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,566 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180293802] [2023-02-13 03:41:02,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,572 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash 96824507, now seen corresponding path program 1 times [2023-02-13 03:41:02,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,575 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280044282] [2023-02-13 03:41:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,579 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,614 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,615 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:02,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:02,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,624 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 03:41:02,630 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 03:41:02,632 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 03:41:02,634 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 03:41:02,636 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 03:41:02,676 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,676 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:02,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,678 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,678 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 03:41:02,681 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 03:41:02,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,693 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 03:41:02,713 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 03:41:02,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,713 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,714 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 03:41:02,715 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 03:41:02,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,731 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 03:41:02,753 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 03:41:02,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,754 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,755 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 03:41:02,756 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 03:41:02,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,774 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,774 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:02,795 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 03:41:02,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,795 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,797 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 03:41:02,798 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 03:41:02,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,809 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,809 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 03:41:02,827 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 03:41:02,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,828 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,829 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 03:41:02,829 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 03:41:02,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,878 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 03:41:02,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,879 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,879 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 03:41:02,880 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 03:41:02,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:02,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,936 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:02,939 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 03:41:02,939 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,941 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:02,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,942 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:02,942 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,942 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,946 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 03:41:02,950 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 03:41:02,954 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 03:41:02,958 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 03:41:02,963 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 03:41:03,029 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,032 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:03,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,034 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,035 INFO L229 MonitoredProcess]: Starting monitored process 8 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 03:41:03,036 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:41:03,037 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 03:41:03,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,068 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:41:03,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,070 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,070 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 03:41:03,071 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 03:41:03,071 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 03:41:03,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,101 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 03:41:03,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,102 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,102 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 03:41:03,103 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 03:41:03,103 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 03:41:03,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,123 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:03,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,124 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,125 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 03:41:03,126 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 03:41:03,126 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 03:41:03,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,155 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:41:03,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,156 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,157 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 03:41:03,160 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 03:41:03,161 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 03:41:03,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:03,176 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:03,176 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:03,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,178 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,178 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 03:41:03,181 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 03:41:03,181 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:03,181 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:03,182 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:03,182 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-13 03:41:03,207 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:41:03,210 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:03,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,244 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,258 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,330 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 03:41:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,389 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,407 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:41:03,413 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 03:41:03,416 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 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 03:41:03,502 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 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 14 states and 39 transitions. Complement of second has 6 states. [2023-02-13 03:41:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 03:41:03,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2023-02-13 03:41:03,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:41:03,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-13 03:41:03,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 8 letters. [2023-02-13 03:41:03,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 39 transitions. [2023-02-13 03:41:03,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-13 03:41:03,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 35 transitions. [2023-02-13 03:41:03,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:41:03,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:41:03,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 35 transitions. [2023-02-13 03:41:03,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:03,539 INFO L220 hiAutomatonCegarLoop]: Abstraction has 13 states and 35 transitions. [2023-02-13 03:41:03,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 35 transitions. [2023-02-13 03:41:03,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2023-02-13 03:41:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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 03:41:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 28 transitions. [2023-02-13 03:41:03,557 INFO L242 hiAutomatonCegarLoop]: Abstraction has 10 states and 28 transitions. [2023-02-13 03:41:03,557 INFO L426 stractBuchiCegarLoop]: Abstraction has 10 states and 28 transitions. [2023-02-13 03:41:03,557 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:41:03,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 28 transitions. [2023-02-13 03:41:03,558 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-13 03:41:03,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:03,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:03,558 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:03,558 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:41:03,558 INFO L733 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY [72] ULTIMATE.startENTRY-->L23-3: 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_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, 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|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 76#L23-3 [55] L23-3-->L19-2: Formula: (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[] 72#L19-2 [2023-02-13 03:41:03,558 INFO L735 eck$LassoCheckResult]: Loop: 72#L19-2 [66] L19-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_7| (+ (- 1) |v_ULTIMATE.start_main_~y~0#1_8|)) (<= 0 |v_ULTIMATE.start_main_~y~0#1_8|) (< |v_ULTIMATE.start_main_#t~nondet3#1_5| 0)) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1] 72#L19-2 [2023-02-13 03:41:03,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,559 INFO L85 PathProgramCache]: Analyzing trace with hash 3248, now seen corresponding path program 1 times [2023-02-13 03:41:03,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,559 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668745225] [2023-02-13 03:41:03,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,561 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,563 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 1 times [2023-02-13 03:41:03,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,564 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313607866] [2023-02-13 03:41:03,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,566 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,568 INFO L85 PathProgramCache]: Analyzing trace with hash 100754, now seen corresponding path program 1 times [2023-02-13 03:41:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,568 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683656191] [2023-02-13 03:41:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,571 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,585 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:03,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:03,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:03,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:03,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:03,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:03,586 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:03,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:03,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:03,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:03,586 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 03:41:03,588 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 03:41:03,589 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 03:41:03,591 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 03:41:03,611 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,612 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:03,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,612 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,613 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:41:03,613 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:41:03,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,622 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:03,622 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 03:41:03,637 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:41:03,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,638 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,641 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:41:03,642 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:41:03,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:03,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:03,675 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:41:03,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,675 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,677 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 03:41:03,678 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 03:41:03,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,688 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:03,688 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet3#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:03,714 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:41:03,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,715 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,716 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 03:41:03,717 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 03:41:03,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,760 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 03:41:03,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,761 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,762 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 03:41:03,763 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 03:41:03,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:03,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,812 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:03,814 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 03:41:03,814 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:03,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:03,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:03,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:03,815 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:03,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:03,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:03,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:03,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:03,815 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:03,816 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 03:41:03,822 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 03:41:03,826 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 03:41:03,831 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 03:41:03,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,872 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:03,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,873 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,874 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 03:41:03,876 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 03:41:03,877 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 03:41:03,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,899 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 03:41:03,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,899 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,900 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 03:41:03,901 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 03:41:03,902 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 03:41:03,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,959 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 03:41:03,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,960 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,961 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 03:41:03,963 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 03:41:03,963 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 03:41:03,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:03,983 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:03,983 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:03,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,983 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,988 INFO L229 MonitoredProcess]: Starting monitored process 22 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 03:41:03,990 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:41:03,990 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:03,991 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:03,991 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:03,991 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 03:41:04,028 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 03:41:04,030 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:04,050 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:04,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:04,060 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:04,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:04,061 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 03:41:04,062 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:41:04,062 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 1 loop predicates [2023-02-13 03:41:04,063 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 03:41:04,091 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 28 transitions. cyclomatic complexity: 21. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 21 states and 49 transitions. Complement of second has 6 states. [2023-02-13 03:41:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 03:41:04,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2023-02-13 03:41:04,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-13 03:41:04,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-13 03:41:04,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-13 03:41:04,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 49 transitions. [2023-02-13 03:41:04,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:41:04,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 14 states and 33 transitions. [2023-02-13 03:41:04,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:41:04,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2023-02-13 03:41:04,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 33 transitions. [2023-02-13 03:41:04,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:04,099 INFO L220 hiAutomatonCegarLoop]: Abstraction has 14 states and 33 transitions. [2023-02-13 03:41:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 33 transitions. [2023-02-13 03:41:04,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-13 03:41:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 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 03:41:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 33 transitions. [2023-02-13 03:41:04,101 INFO L242 hiAutomatonCegarLoop]: Abstraction has 14 states and 33 transitions. [2023-02-13 03:41:04,101 INFO L426 stractBuchiCegarLoop]: Abstraction has 14 states and 33 transitions. [2023-02-13 03:41:04,101 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:41:04,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 33 transitions. [2023-02-13 03:41:04,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:41:04,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:04,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:04,103 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-13 03:41:04,103 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:41:04,103 INFO L733 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY [72] ULTIMATE.startENTRY-->L23-3: 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_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, 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|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 135#L23-3 [55] L23-3-->L19-2: Formula: (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[] 139#L19-2 [65] L19-2-->L19-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet3#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1] 133#L19-3 [57] L19-3-->L23-2: Formula: (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 143#L23-2 [71] L23-2-->L23-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~y~0#1_2| 1) |v_ULTIMATE.start_main_~y~0#1_1|) (<= |v_ULTIMATE.start_main_~y~0#1_2| |v_ULTIMATE.start_main_~n~0#1_1|) (> |v_ULTIMATE.start_main_#t~nondet4#1_2| 0)) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_2|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~y~0#1] 136#L23-2 [2023-02-13 03:41:04,103 INFO L735 eck$LassoCheckResult]: Loop: 136#L23-2 [70] L23-2-->L23-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~y~0#1_2| 1) |v_ULTIMATE.start_main_~y~0#1_1|) (<= |v_ULTIMATE.start_main_~y~0#1_2| |v_ULTIMATE.start_main_~n~0#1_1|) (< |v_ULTIMATE.start_main_#t~nondet4#1_2| 0)) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_2|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~y~0#1] 136#L23-2 [2023-02-13 03:41:04,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,104 INFO L85 PathProgramCache]: Analyzing trace with hash 96825471, now seen corresponding path program 1 times [2023-02-13 03:41:04,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,104 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667129514] [2023-02-13 03:41:04,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,110 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 101, now seen corresponding path program 1 times [2023-02-13 03:41:04,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,114 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131806006] [2023-02-13 03:41:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,116 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1293377625, now seen corresponding path program 1 times [2023-02-13 03:41:04,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,119 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583278550] [2023-02-13 03:41:04,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,123 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,134 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:04,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:04,134 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:04,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:04,135 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:04,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:04,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:04,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:04,135 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:04,135 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:04,135 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:04,135 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 03:41:04,138 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 03:41:04,139 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 03:41:04,140 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 03:41:04,155 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:04,155 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:04,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:04,155 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,156 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 03:41:04,157 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 03:41:04,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:04,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:04,181 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 03:41:04,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:04,181 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,182 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 03:41:04,183 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 03:41:04,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:04,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:04,293 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:04,295 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-13 03:41:04,295 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:04,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:04,295 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:04,295 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:04,295 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:04,295 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:04,295 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:04,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:04,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:04,295 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:04,295 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:04,296 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 03:41:04,304 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 03:41:04,308 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 03:41:04,311 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 03:41:04,349 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:04,350 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:04,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:04,350 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,351 INFO L229 MonitoredProcess]: Starting monitored process 25 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 03:41:04,352 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:41:04,353 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 03:41:04,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:04,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:04,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:04,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:04,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:04,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:04,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:04,365 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:04,369 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:04,370 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:04,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:04,370 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,372 INFO L229 MonitoredProcess]: Starting monitored process 26 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 03:41:04,374 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:41:04,374 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:04,374 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:04,374 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:04,374 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~n~0#1 + 1 Supporting invariants [] [2023-02-13 03:41:04,411 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:04,413 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:04,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:04,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:04,444 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:04,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:04,445 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 03:41:04,446 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:41:04,446 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 1 loop predicates [2023-02-13 03:41:04,446 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 03:41:04,488 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 33 transitions. cyclomatic complexity: 21. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 37 states and 85 transitions. Complement of second has 4 states. [2023-02-13 03:41:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 03:41:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2023-02-13 03:41:04,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-13 03:41:04,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-13 03:41:04,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:41:04,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:04,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 85 transitions. [2023-02-13 03:41:04,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:41:04,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 27 states and 61 transitions. [2023-02-13 03:41:04,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:41:04,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2023-02-13 03:41:04,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 61 transitions. [2023-02-13 03:41:04,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:04,501 INFO L220 hiAutomatonCegarLoop]: Abstraction has 27 states and 61 transitions. [2023-02-13 03:41:04,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 61 transitions. [2023-02-13 03:41:04,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2023-02-13 03:41:04,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 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 03:41:04,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 45 transitions. [2023-02-13 03:41:04,505 INFO L242 hiAutomatonCegarLoop]: Abstraction has 19 states and 45 transitions. [2023-02-13 03:41:04,505 INFO L426 stractBuchiCegarLoop]: Abstraction has 19 states and 45 transitions. [2023-02-13 03:41:04,505 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:41:04,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 45 transitions. [2023-02-13 03:41:04,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:41:04,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:04,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:04,507 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-13 03:41:04,507 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:41:04,508 INFO L733 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY [72] ULTIMATE.startENTRY-->L23-3: 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_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_6|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, 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|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1] 222#L23-3 [55] L23-3-->L19-2: Formula: (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[] 226#L19-2 [65] L19-2-->L19-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet3#1_3| 0) InVars {ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|} OutVars{} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3#1] 233#L19-3 [57] L19-3-->L23-2: Formula: (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 229#L23-2 [70] L23-2-->L23-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~y~0#1_2| 1) |v_ULTIMATE.start_main_~y~0#1_1|) (<= |v_ULTIMATE.start_main_~y~0#1_2| |v_ULTIMATE.start_main_~n~0#1_1|) (< |v_ULTIMATE.start_main_#t~nondet4#1_2| 0)) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_2|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~y~0#1] 223#L23-2 [2023-02-13 03:41:04,508 INFO L735 eck$LassoCheckResult]: Loop: 223#L23-2 [70] L23-2-->L23-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~y~0#1_2| 1) |v_ULTIMATE.start_main_~y~0#1_1|) (<= |v_ULTIMATE.start_main_~y~0#1_2| |v_ULTIMATE.start_main_~n~0#1_1|) (< |v_ULTIMATE.start_main_#t~nondet4#1_2| 0)) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_2|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_2|} OutVars{ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~y~0#1] 223#L23-2 [2023-02-13 03:41:04,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 96825470, now seen corresponding path program 1 times [2023-02-13 03:41:04,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,509 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969899091] [2023-02-13 03:41:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,515 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,520 INFO L85 PathProgramCache]: Analyzing trace with hash 101, now seen corresponding path program 2 times [2023-02-13 03:41:04,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,520 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363704132] [2023-02-13 03:41:04,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,523 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,525 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1293377656, now seen corresponding path program 2 times [2023-02-13 03:41:04,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:04,525 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825918636] [2023-02-13 03:41:04,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:04,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:04,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:04,556 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-13 03:41:04,563 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:04,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:04,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:04,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:04,563 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:04,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:04,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:04,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:04,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:04,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:04,564 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:04,564 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 03:41:04,566 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 03:41:04,568 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 03:41:04,569 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 03:41:04,570 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:41:04,584 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:41:04,587 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:04,587 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:04,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:04,587 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,588 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 03:41:04,589 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 03:41:04,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:04,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:04,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:04,596 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet4#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:04,611 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 03:41:04,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:04,611 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,612 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 03:41:04,613 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 03:41:04,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:04,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:04,645 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 03:41:04,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:04,645 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,646 INFO L229 MonitoredProcess]: Starting monitored process 29 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 03:41:04,648 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:41:04,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:04,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:04,781 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:04,782 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:04,783 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:04,783 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:04,783 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:04,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:04,784 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:04,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:04,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:04,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:04,785 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:04,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:04,785 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:04,787 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 03:41:04,790 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 03:41:04,796 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 03:41:04,799 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 03:41:04,837 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:04,838 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:04,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:04,839 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,840 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 03:41:04,843 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 03:41:04,844 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 03:41:04,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:04,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:04,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:04,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:04,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:04,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:04,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:04,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:04,896 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-02-13 03:41:04,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:04,897 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,898 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 03:41:04,900 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 03:41:04,901 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 03:41:04,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:04,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:04,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:04,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:04,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:04,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:04,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:04,916 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:04,920 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:04,920 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:04,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:04,921 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:04,922 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 03:41:04,925 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 03:41:04,925 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:04,925 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:04,925 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:04,926 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 03:41:04,963 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:04,965 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:04,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:04,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:04,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:05,000 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:05,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:05,001 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 03:41:05,002 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:41:05,002 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 1 loop predicates [2023-02-13 03:41:05,002 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 03:41:05,049 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 19 states and 45 transitions. cyclomatic complexity: 28. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 48 states and 112 transitions. Complement of second has 4 states. [2023-02-13 03:41:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:05,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 03:41:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2023-02-13 03:41:05,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-13 03:41:05,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:05,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-13 03:41:05,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:05,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:41:05,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:05,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 112 transitions. [2023-02-13 03:41:05,058 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:05,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2023-02-13 03:41:05,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:41:05,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:41:05,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:41:05,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:05,059 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:05,059 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:05,060 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:05,060 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:41:05,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:41:05,060 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:05,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:41:05,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:05 BasicIcfg [2023-02-13 03:41:05,068 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:41:05,069 INFO L158 Benchmark]: Toolchain (without parser) took 3107.09ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -411.5MB). Peak memory consumption was 28.1MB. Max. memory is 42.9GB. [2023-02-13 03:41:05,069 INFO L158 Benchmark]: CDTParser took 0.11ms. 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 03:41:05,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 130.15ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:05,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.32ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:05,070 INFO L158 Benchmark]: Boogie Preprocessor took 9.01ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:05,070 INFO L158 Benchmark]: RCFGBuilder took 251.30ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:05,071 INFO L158 Benchmark]: BlockEncodingV2 took 44.30ms. 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 03:41:05,071 INFO L158 Benchmark]: TraceAbstraction took 13.41ms. 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 03:41:05,071 INFO L158 Benchmark]: BuchiAutomizer took 2638.82ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -442.7MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:05,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 5 locations, 11 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 130.15ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 15.32ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 9.01ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 251.30ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 44.30ms. 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 13.41ms. 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 2638.82ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -442.7MB). There was no memory consumed. 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 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * n + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * n + -2 * y + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 14 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax187 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s 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 03:41:05,116 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-02-13 03:41:05,317 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...