YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:41:30,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:41:30,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:41:30,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:41:30,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:41:30,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:41:30,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:41:30,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:41:30,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:41:30,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:41:30,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:41:30,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:41:30,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:41:30,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:41:30,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:41:30,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:41:30,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:41:30,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:41:30,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:41:30,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:41:30,928 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:41:30,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:41:30,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:41:30,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:41:30,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:41:30,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:41:30,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:41:30,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:41:30,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:41:30,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:41:30,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:41:30,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:41:30,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:41:30,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:41:30,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:41:30,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:41:30,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:41:30,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:41:30,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:41:30,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:41:30,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:41:30,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:41:30,937 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:41:30,948 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:41:30,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:41:30,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:41:30,949 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:41:30,950 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:41:30,950 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:30,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:41:30,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:41:30,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:30,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:41:30,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:41:30,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:41:30,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:41:31,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:41:31,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:41:31,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:41:31,103 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:41:31,105 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:41:31,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:31,143 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/b4257232de2a4ca988018711a83acda6/FLAGdd33b7093 [2023-02-13 03:41:31,495 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:41:31,495 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:31,500 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/b4257232de2a4ca988018711a83acda6/FLAGdd33b7093 [2023-02-13 03:41:31,944 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/b4257232de2a4ca988018711a83acda6 [2023-02-13 03:41:31,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:41:31,949 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:41:31,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:31,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:41:31,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:41:31,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:31" (1/1) ... [2023-02-13 03:41:31,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21647b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:31, skipping insertion in model container [2023-02-13 03:41:31,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:31" (1/1) ... [2023-02-13 03:41:31,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:41:31,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:41:32,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:32,056 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:41:32,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:32,069 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:41:32,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32 WrapperNode [2023-02-13 03:41:32,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:32,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:32,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:41:32,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:41:32,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,085 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-13 03:41:32,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:32,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:41:32,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:41:32,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:41:32,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:41:32,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:41:32,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:41:32,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:41:32,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:32,123 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,137 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 03:41:32,143 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 03:41:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:41:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:41:32,214 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:41:32,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:41:32,263 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:41:32,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:41:32,269 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-13 03:41:32,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:32 BoogieIcfgContainer [2023-02-13 03:41:32,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:41:32,271 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:41:32,271 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:41:32,272 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:41:32,273 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:32" (1/1) ... [2023-02-13 03:41:32,281 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2023-02-13 03:41:32,281 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:41:32,282 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:41:32,282 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:41:32,282 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:32,283 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:41:32,283 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:41:32,283 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:41:32,290 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:41:32,295 INFO L200 BlockEncoder]: SBE split 1 edges [2023-02-13 03:41:32,297 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2023-02-13 03:41:32,298 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:32,302 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:41:32,303 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:41:32,304 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:41:32,304 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:32,304 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:41:32,304 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:41:32,305 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2023-02-13 03:41:32,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:32 BasicIcfg [2023-02-13 03:41:32,305 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:41:32,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:41:32,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:41:32,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:41:32,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:41:31" (1/4) ... [2023-02-13 03:41:32,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cf1c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:32, skipping insertion in model container [2023-02-13 03:41:32,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (2/4) ... [2023-02-13 03:41:32,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cf1c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:32, skipping insertion in model container [2023-02-13 03:41:32,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:32" (3/4) ... [2023-02-13 03:41:32,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cf1c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:32, skipping insertion in model container [2023-02-13 03:41:32,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:32" (4/4) ... [2023-02-13 03:41:32,309 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:32,318 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:41:32,319 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:41:32,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cf1c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:32, skipping insertion in model container [2023-02-13 03:41:32,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:41:32,320 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:41:32,320 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:41:32,322 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:41:32,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:32,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:41:31" (1/4) ... [2023-02-13 03:41:32,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bdc0859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:32, skipping insertion in model container [2023-02-13 03:41:32,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:32,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:32" (2/4) ... [2023-02-13 03:41:32,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bdc0859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:32, skipping insertion in model container [2023-02-13 03:41:32,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:32,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:32" (3/4) ... [2023-02-13 03:41:32,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bdc0859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:32, skipping insertion in model container [2023-02-13 03:41:32,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:32,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:32" (4/4) ... [2023-02-13 03:41:32,324 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:32,351 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:41:32,351 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:41:32,351 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:41:32,351 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:41:32,352 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:41:32,352 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:41:32,352 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:41:32,352 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:41:32,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:32,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:32,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:32,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:32,368 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:32,368 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:32,368 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:41:32,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:32,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:32,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:32,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:32,369 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:32,369 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:32,372 INFO L733 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_8|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 3#L17-2true [2023-02-13 03:41:32,372 INFO L735 eck$LassoCheckResult]: Loop: 3#L17-2true [37] L17-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~j~0#1_7| 0) (< |v_ULTIMATE.start_main_~i~0#1_9| 5)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 2#L19-2true [46] L19-2-->L19-3: Formula: (> |v_ULTIMATE.start_main_~j~0#1_4| 9) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_4|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_4|} AuxVars[] AssignedVars[] 5#L19-3true [42] L19-3-->L17-2: Formula: (= (+ |v_ULTIMATE.start_main_~i~0#1_7| 1) |v_ULTIMATE.start_main_~i~0#1_6|) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 3#L17-2true [2023-02-13 03:41:32,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:32,376 INFO L85 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2023-02-13 03:41:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:32,381 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78818756] [2023-02-13 03:41:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:32,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,425 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:32,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:32,437 INFO L85 PathProgramCache]: Analyzing trace with hash 66816, now seen corresponding path program 1 times [2023-02-13 03:41:32,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:32,437 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766182945] [2023-02-13 03:41:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:32,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:32,477 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 03:41:32,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:32,478 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766182945] [2023-02-13 03:41:32,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766182945] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:41:32,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:41:32,479 ERROR L191 FreeRefinementEngine]: {10#true} [12#(<= |ULTIMATE.start_main_~j~0#1| 0), 11#false] {11#false} [2023-02-13 03:41:32,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:41:32,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947871968] [2023-02-13 03:41:32,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:41:32,485 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:41:32,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:32,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:41:32,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:41:32,507 INFO L87 Difference]: Start difference. First operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) 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 03:41:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:32,518 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2023-02-13 03:41:32,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2023-02-13 03:41:32,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-13 03:41:32,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:41:32,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:41:32,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:41:32,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2023-02-13 03:41:32,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:32,522 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:41:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2023-02-13 03:41:32,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2023-02-13 03:41:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 03:41:32,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2023-02-13 03:41:32,537 INFO L242 hiAutomatonCegarLoop]: Abstraction has 5 states and 8 transitions. [2023-02-13 03:41:32,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:41:32,543 INFO L426 stractBuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2023-02-13 03:41:32,543 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:41:32,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2023-02-13 03:41:32,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:41:32,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:32,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:32,544 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:32,544 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:32,544 INFO L733 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_8|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 23#L17-2 [2023-02-13 03:41:32,544 INFO L735 eck$LassoCheckResult]: Loop: 23#L17-2 [37] L17-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~j~0#1_7| 0) (< |v_ULTIMATE.start_main_~i~0#1_9| 5)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 20#L19-2 [47] L19-2-->L19-3: Formula: (>= 2 |v_ULTIMATE.start_main_~i~0#1_4|) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_4|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_4|} AuxVars[] AssignedVars[] 22#L19-3 [42] L19-3-->L17-2: Formula: (= (+ |v_ULTIMATE.start_main_~i~0#1_7| 1) |v_ULTIMATE.start_main_~i~0#1_6|) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 23#L17-2 [2023-02-13 03:41:32,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:32,545 INFO L85 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 2 times [2023-02-13 03:41:32,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:32,545 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400126059] [2023-02-13 03:41:32,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:32,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:32,551 INFO L85 PathProgramCache]: Analyzing trace with hash 66847, now seen corresponding path program 1 times [2023-02-13 03:41:32,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:32,551 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037224441] [2023-02-13 03:41:32,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:32,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,558 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:32,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:32,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2390545, now seen corresponding path program 1 times [2023-02-13 03:41:32,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:32,561 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101682800] [2023-02-13 03:41:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:32,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,564 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:32,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:32,593 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:32,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:32,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:32,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:32,594 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:32,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:32,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:32,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:32,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:32,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:32,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:32,601 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 03:41:32,610 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 03:41:32,612 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:32,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:32,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:32,646 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:32,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:32,648 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,656 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 03:41:32,657 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 03:41:32,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:32,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:32,670 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:32,671 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 03:41:32,696 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 03:41:32,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:32,697 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,698 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 03:41:32,699 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 03:41:32,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:32,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:32,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:32,714 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 03:41:32,751 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 03:41:32,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:32,752 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,753 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 03:41:32,771 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 03:41:32,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:32,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:32,780 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:32,780 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:32,803 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 03:41:32,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:32,804 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,805 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 03:41:32,809 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 03:41:32,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:32,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:32,836 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:32,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:32,837 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,838 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 03:41:32,841 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 03:41:32,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:32,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:32,870 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:32,872 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 03:41:32,872 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:32,872 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:32,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:32,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:32,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:32,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:32,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:32,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:32,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:32,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:32,873 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:32,874 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 03:41:32,877 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 03:41:32,881 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 03:41:32,884 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 03:41:32,920 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:32,923 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:32,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,925 INFO L229 MonitoredProcess]: Starting monitored process 7 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 03:41:32,926 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:41:32,926 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 03:41:32,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:32,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:32,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:32,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:32,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:32,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:32,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:32,956 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:41:32,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:32,957 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:32,958 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 03:41:32,959 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 03:41:32,960 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 03:41:32,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:32,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:32,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:32,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:32,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:32,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:32,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:33,000 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 03:41:33,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:33,001 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,002 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 03:41:33,004 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 03:41:33,004 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 03:41:33,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:33,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:33,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:33,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:33,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:33,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:33,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:33,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:33,054 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 03:41:33,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:33,054 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,055 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 03:41:33,057 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 03:41:33,058 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 03:41:33,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:33,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:33,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:33,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:33,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:33,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:33,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:33,069 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:33,074 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:33,074 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:33,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:33,075 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,076 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 03:41:33,079 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 03:41:33,079 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:33,080 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:33,080 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:33,081 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2023-02-13 03:41:33,116 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:41:33,118 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:33,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,142 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,147 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,158 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 03:41:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,165 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,184 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:41:33,186 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:41:33,187 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:33,236 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 31 transitions. Complement of second has 9 states. [2023-02-13 03:41:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2023-02-13 03:41:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2023-02-13 03:41:33,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:41:33,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:33,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:41:33,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:33,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:41:33,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:33,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2023-02-13 03:41:33,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2023-02-13 03:41:33,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 29 transitions. [2023-02-13 03:41:33,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:41:33,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-13 03:41:33,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2023-02-13 03:41:33,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:33,243 INFO L220 hiAutomatonCegarLoop]: Abstraction has 19 states and 29 transitions. [2023-02-13 03:41:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2023-02-13 03:41:33,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2023-02-13 03:41:33,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 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 03:41:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2023-02-13 03:41:33,244 INFO L242 hiAutomatonCegarLoop]: Abstraction has 12 states and 18 transitions. [2023-02-13 03:41:33,244 INFO L426 stractBuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2023-02-13 03:41:33,244 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:41:33,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2023-02-13 03:41:33,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:41:33,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:33,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:33,244 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:33,245 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:41:33,245 INFO L733 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_8|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 102#L17-2 [37] L17-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~j~0#1_7| 0) (< |v_ULTIMATE.start_main_~i~0#1_9| 5)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 94#L19-2 [2023-02-13 03:41:33,245 INFO L735 eck$LassoCheckResult]: Loop: 94#L19-2 [34] L19-2-->L19-2: Formula: (and (< 2 |v_ULTIMATE.start_main_~i~0#1_5|) (= (+ |v_ULTIMATE.start_main_~j~0#1_6| 1) |v_ULTIMATE.start_main_~j~0#1_5|) (<= |v_ULTIMATE.start_main_~j~0#1_6| 9)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 95#L19-2 [46] L19-2-->L19-3: Formula: (> |v_ULTIMATE.start_main_~j~0#1_4| 9) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_4|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_4|} AuxVars[] AssignedVars[] 103#L19-3 [42] L19-3-->L17-2: Formula: (= (+ |v_ULTIMATE.start_main_~i~0#1_7| 1) |v_ULTIMATE.start_main_~i~0#1_6|) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 99#L17-2 [37] L17-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~j~0#1_7| 0) (< |v_ULTIMATE.start_main_~i~0#1_9| 5)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 94#L19-2 [2023-02-13 03:41:33,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2486, now seen corresponding path program 1 times [2023-02-13 03:41:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:33,245 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793544882] [2023-02-13 03:41:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:33,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,248 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:33,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1981960, now seen corresponding path program 1 times [2023-02-13 03:41:33,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:33,250 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615964507] [2023-02-13 03:41:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:33,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,253 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1998035651, now seen corresponding path program 1 times [2023-02-13 03:41:33,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:33,256 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181144357] [2023-02-13 03:41:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:33,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:33,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:33,267 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181144357] [2023-02-13 03:41:33,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181144357] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 03:41:33,267 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263463661] [2023-02-13 03:41:33,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:33,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 03:41:33,267 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,268 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-13 03:41:33,269 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-13 03:41:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:33,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 03:41:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:33,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263463661] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 03:41:33,297 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 03:41:33,297 ERROR L197 FreeRefinementEngine]: {111#true} [111#true, 113#(<= |ULTIMATE.start_main_~j~0#1| 0), 114#(<= |ULTIMATE.start_main_~j~0#1| 1), 112#false, 112#false] {112#false} [2023-02-13 03:41:33,297 ERROR L197 FreeRefinementEngine]: {111#true} [111#true, 113#(<= |ULTIMATE.start_main_~j~0#1| 0), 114#(<= |ULTIMATE.start_main_~j~0#1| 1), 112#false, 112#false] {112#false} [2023-02-13 03:41:33,297 ERROR L197 FreeRefinementEngine]: {111#true} [111#true, 143#(< |ULTIMATE.start_main_~j~0#1| 9), 139#(not (< 9 |ULTIMATE.start_main_~j~0#1|)), 112#false, 112#false] {112#false} [2023-02-13 03:41:33,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-02-13 03:41:33,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397776319] [2023-02-13 03:41:33,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 03:41:33,315 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:33,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:33,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:33,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:33,315 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:33,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:33,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:33,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:33,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:33,315 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:33,315 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:33,316 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 03:41:33,318 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 03:41:33,319 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 03:41:33,322 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 03:41:33,347 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:33,347 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:33,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:33,348 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,348 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:41:33,350 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:41:33,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:33,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:33,358 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:33,358 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 03:41:33,373 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:41:33,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:33,373 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,374 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 03:41:33,376 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 03:41:33,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:33,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:33,386 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:33,386 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 03:41:33,400 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 03:41:33,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:33,401 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,401 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 03:41:33,404 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 03:41:33,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:33,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:33,426 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 03:41:33,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:33,426 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,427 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 03:41:33,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:33,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:33,431 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 03:41:33,438 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:33,453 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 03:41:33,454 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:33,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:33,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:33,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:33,455 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:33,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:33,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:33,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:33,456 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:33,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:33,456 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:33,458 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 03:41:33,465 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 03:41:33,478 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 03:41:33,483 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 03:41:33,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:33,544 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:33,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:33,544 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,545 INFO L229 MonitoredProcess]: Starting monitored process 17 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 03:41:33,549 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:41:33,549 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 03:41:33,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:33,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:33,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:33,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:33,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:33,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:33,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:33,577 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:41:33,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:33,577 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,578 INFO L229 MonitoredProcess]: Starting monitored process 18 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 03:41:33,580 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:41:33,580 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 03:41:33,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:33,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:33,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:33,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:33,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:33,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:33,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:33,588 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:33,591 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:41:33,591 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:33,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:33,592 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,593 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 03:41:33,595 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 03:41:33,595 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:33,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:33,596 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:33,596 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-02-13 03:41:33,616 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:41:33,616 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:33,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,682 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 6 predicates after loop cannibalization [2023-02-13 03:41:33,682 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-02-13 03:41:33,682 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:33,767 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 125 states and 189 transitions. Complement of second has 36 states. [2023-02-13 03:41:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 35 transitions. [2023-02-13 03:41:33,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-13 03:41:33,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:33,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-13 03:41:33,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:33,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-13 03:41:33,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:33,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 189 transitions. [2023-02-13 03:41:33,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:41:33,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 26 states and 39 transitions. [2023-02-13 03:41:33,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:41:33,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-13 03:41:33,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 39 transitions. [2023-02-13 03:41:33,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:33,777 INFO L220 hiAutomatonCegarLoop]: Abstraction has 26 states and 39 transitions. [2023-02-13 03:41:33,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 39 transitions. [2023-02-13 03:41:33,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 14. [2023-02-13 03:41:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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 03:41:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2023-02-13 03:41:33,778 INFO L242 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-02-13 03:41:33,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:33,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-13 03:41:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-13 03:41:33,779 INFO L87 Difference]: Start difference. First operand 14 states and 21 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:33,797 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2023-02-13 03:41:33,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 39 transitions. [2023-02-13 03:41:33,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:41:33,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 39 transitions. [2023-02-13 03:41:33,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-13 03:41:33,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-13 03:41:33,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 39 transitions. [2023-02-13 03:41:33,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:33,799 INFO L220 hiAutomatonCegarLoop]: Abstraction has 26 states and 39 transitions. [2023-02-13 03:41:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 39 transitions. [2023-02-13 03:41:33,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2023-02-13 03:41:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 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 03:41:33,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2023-02-13 03:41:33,801 INFO L242 hiAutomatonCegarLoop]: Abstraction has 18 states and 27 transitions. [2023-02-13 03:41:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-13 03:41:33,802 INFO L426 stractBuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2023-02-13 03:41:33,802 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:41:33,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2023-02-13 03:41:33,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:41:33,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:33,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:33,803 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:33,803 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2023-02-13 03:41:33,804 INFO L733 eck$LassoCheckResult]: Stem: 400#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_8|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 401#L17-2 [37] L17-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~j~0#1_7| 0) (< |v_ULTIMATE.start_main_~i~0#1_9| 5)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 393#L19-2 [2023-02-13 03:41:33,804 INFO L735 eck$LassoCheckResult]: Loop: 393#L19-2 [34] L19-2-->L19-2: Formula: (and (< 2 |v_ULTIMATE.start_main_~i~0#1_5|) (= (+ |v_ULTIMATE.start_main_~j~0#1_6| 1) |v_ULTIMATE.start_main_~j~0#1_5|) (<= |v_ULTIMATE.start_main_~j~0#1_6| 9)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 394#L19-2 [34] L19-2-->L19-2: Formula: (and (< 2 |v_ULTIMATE.start_main_~i~0#1_5|) (= (+ |v_ULTIMATE.start_main_~j~0#1_6| 1) |v_ULTIMATE.start_main_~j~0#1_5|) (<= |v_ULTIMATE.start_main_~j~0#1_6| 9)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 406#L19-2 [34] L19-2-->L19-2: Formula: (and (< 2 |v_ULTIMATE.start_main_~i~0#1_5|) (= (+ |v_ULTIMATE.start_main_~j~0#1_6| 1) |v_ULTIMATE.start_main_~j~0#1_5|) (<= |v_ULTIMATE.start_main_~j~0#1_6| 9)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 405#L19-2 [34] L19-2-->L19-2: Formula: (and (< 2 |v_ULTIMATE.start_main_~i~0#1_5|) (= (+ |v_ULTIMATE.start_main_~j~0#1_6| 1) |v_ULTIMATE.start_main_~j~0#1_5|) (<= |v_ULTIMATE.start_main_~j~0#1_6| 9)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 404#L19-2 [46] L19-2-->L19-3: Formula: (> |v_ULTIMATE.start_main_~j~0#1_4| 9) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_4|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_4|} AuxVars[] AssignedVars[] 402#L19-3 [42] L19-3-->L17-2: Formula: (= (+ |v_ULTIMATE.start_main_~i~0#1_7| 1) |v_ULTIMATE.start_main_~i~0#1_6|) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 398#L17-2 [37] L17-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~j~0#1_7| 0) (< |v_ULTIMATE.start_main_~i~0#1_9| 5)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 393#L19-2 [2023-02-13 03:41:33,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2486, now seen corresponding path program 2 times [2023-02-13 03:41:33,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:33,805 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534884896] [2023-02-13 03:41:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:33,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,808 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:33,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1435953592, now seen corresponding path program 2 times [2023-02-13 03:41:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:33,810 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870307511] [2023-02-13 03:41:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:33,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,816 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:33,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:33,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash 120694515, now seen corresponding path program 2 times [2023-02-13 03:41:33,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:33,820 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662962208] [2023-02-13 03:41:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:33,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:33,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:33,840 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662962208] [2023-02-13 03:41:33,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662962208] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 03:41:33,840 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276241397] [2023-02-13 03:41:33,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-13 03:41:33,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 03:41:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:33,842 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-13 03:41:33,846 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-13 03:41:33,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-13 03:41:33,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-13 03:41:33,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:41:33,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:33,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 03:41:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:41:33,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276241397] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 03:41:33,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 03:41:33,895 ERROR L197 FreeRefinementEngine]: {416#true} [416#true, 418#(<= |ULTIMATE.start_main_~j~0#1| 0), 419#(<= |ULTIMATE.start_main_~j~0#1| 1), 420#(<= |ULTIMATE.start_main_~j~0#1| 2), 421#(<= |ULTIMATE.start_main_~j~0#1| 3), 422#(<= |ULTIMATE.start_main_~j~0#1| 4), 417#false, 417#false] {417#false} [2023-02-13 03:41:33,895 ERROR L197 FreeRefinementEngine]: {416#true} [416#true, 418#(<= |ULTIMATE.start_main_~j~0#1| 0), 419#(<= |ULTIMATE.start_main_~j~0#1| 1), 420#(<= |ULTIMATE.start_main_~j~0#1| 2), 421#(<= |ULTIMATE.start_main_~j~0#1| 3), 422#(<= |ULTIMATE.start_main_~j~0#1| 4), 417#false, 417#false] {417#false} [2023-02-13 03:41:33,895 ERROR L197 FreeRefinementEngine]: {416#true} [416#true, 472#(< |ULTIMATE.start_main_~j~0#1| 6), 468#(< |ULTIMATE.start_main_~j~0#1| 7), 464#(< |ULTIMATE.start_main_~j~0#1| 8), 460#(< |ULTIMATE.start_main_~j~0#1| 9), 456#(not (< 9 |ULTIMATE.start_main_~j~0#1|)), 417#false, 417#false] {417#false} [2023-02-13 03:41:33,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-13 03:41:33,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344856690] [2023-02-13 03:41:33,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 03:41:33,947 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:33,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:33,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:33,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:33,948 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:33,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:33,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:33,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:33,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:33,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:33,950 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:33,951 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 03:41:33,954 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 03:41:33,961 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 03:41:33,966 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 03:41:34,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:34,009 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:34,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:34,010 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,012 INFO L229 MonitoredProcess]: Starting monitored process 21 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 03:41:34,016 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:41:34,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:34,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:34,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:34,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:34,044 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:34,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:34,045 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,059 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:34,064 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:41:34,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:34,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:34,094 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 03:41:34,108 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:41:34,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:34,109 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,110 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 03:41:34,111 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 03:41:34,114 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 03:41:34,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:34,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:34,142 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:34,144 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 03:41:34,144 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:34,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:34,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:34,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:34,144 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:34,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:34,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:34,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:34,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:41:34,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:34,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:34,145 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 03:41:34,152 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 03:41:34,155 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 03:41:34,162 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 03:41:34,218 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:34,219 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:34,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:34,220 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,221 INFO L229 MonitoredProcess]: Starting monitored process 24 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 03:41:34,223 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:41:34,223 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 03:41:34,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:34,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:34,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:34,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:34,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:34,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:34,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:34,239 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:34,242 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:34,242 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:34,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:34,243 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,245 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 03:41:34,247 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 03:41:34,248 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:34,248 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:34,248 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:34,248 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2023-02-13 03:41:34,284 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-13 03:41:34,286 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:34,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:34,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:34,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:34,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-13 03:41:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:34,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:34,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:34,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:34,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:34,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:34,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:34,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-13 03:41:34,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:34,503 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 9 predicates after loop cannibalization [2023-02-13 03:41:34,503 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 9 loop predicates [2023-02-13 03:41:34,503 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 18 states and 27 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:34,810 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 18 states and 27 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 116 states and 155 transitions. Complement of second has 52 states. [2023-02-13 03:41:34,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 1 stem states 12 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 38 transitions. [2023-02-13 03:41:34,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 38 transitions. Stem has 2 letters. Loop has 7 letters. [2023-02-13 03:41:34,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:34,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 38 transitions. Stem has 9 letters. Loop has 7 letters. [2023-02-13 03:41:34,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:34,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 38 transitions. Stem has 2 letters. Loop has 14 letters. [2023-02-13 03:41:34,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:34,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 155 transitions. [2023-02-13 03:41:34,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:41:34,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 36 states and 53 transitions. [2023-02-13 03:41:34,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:41:34,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:41:34,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 53 transitions. [2023-02-13 03:41:34,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:34,818 INFO L220 hiAutomatonCegarLoop]: Abstraction has 36 states and 53 transitions. [2023-02-13 03:41:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 53 transitions. [2023-02-13 03:41:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 22. [2023-02-13 03:41:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 21 states have internal predecessors, (34), 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 03:41:34,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 34 transitions. [2023-02-13 03:41:34,820 INFO L242 hiAutomatonCegarLoop]: Abstraction has 22 states and 34 transitions. [2023-02-13 03:41:34,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:34,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-13 03:41:34,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-13 03:41:34,821 INFO L87 Difference]: Start difference. First operand 22 states and 34 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 03:41:34,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:34,846 INFO L93 Difference]: Finished difference Result 61 states and 88 transitions. [2023-02-13 03:41:34,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 88 transitions. [2023-02-13 03:41:34,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:41:34,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 88 transitions. [2023-02-13 03:41:34,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-02-13 03:41:34,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-13 03:41:34,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 88 transitions. [2023-02-13 03:41:34,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:34,849 INFO L220 hiAutomatonCegarLoop]: Abstraction has 61 states and 88 transitions. [2023-02-13 03:41:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 88 transitions. [2023-02-13 03:41:34,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 32. [2023-02-13 03:41:34,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:34,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 49 transitions. [2023-02-13 03:41:34,851 INFO L242 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-02-13 03:41:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-13 03:41:34,852 INFO L426 stractBuchiCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-02-13 03:41:34,853 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:41:34,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 49 transitions. [2023-02-13 03:41:34,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:41:34,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:34,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:34,854 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:41:34,854 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:41:34,854 INFO L733 eck$LassoCheckResult]: Stem: 871#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L17-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_8|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 868#L17-2 [37] L17-2-->L19-2: Formula: (and (= |v_ULTIMATE.start_main_~j~0#1_7| 0) (< |v_ULTIMATE.start_main_~i~0#1_9| 5)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 869#L19-2 [34] L19-2-->L19-2: Formula: (and (< 2 |v_ULTIMATE.start_main_~i~0#1_5|) (= (+ |v_ULTIMATE.start_main_~j~0#1_6| 1) |v_ULTIMATE.start_main_~j~0#1_5|) (<= |v_ULTIMATE.start_main_~j~0#1_6| 9)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 864#L19-2 [2023-02-13 03:41:34,854 INFO L735 eck$LassoCheckResult]: Loop: 864#L19-2 [34] L19-2-->L19-2: Formula: (and (< 2 |v_ULTIMATE.start_main_~i~0#1_5|) (= (+ |v_ULTIMATE.start_main_~j~0#1_6| 1) |v_ULTIMATE.start_main_~j~0#1_5|) (<= |v_ULTIMATE.start_main_~j~0#1_6| 9)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 864#L19-2 [2023-02-13 03:41:34,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash 77100, now seen corresponding path program 1 times [2023-02-13 03:41:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:34,854 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871326489] [2023-02-13 03:41:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:34,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:34,859 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:34,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:34,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:34,862 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2023-02-13 03:41:34,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:34,862 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362979404] [2023-02-13 03:41:34,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:34,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:34,864 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:34,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:34,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2390134, now seen corresponding path program 2 times [2023-02-13 03:41:34,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:34,865 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892670822] [2023-02-13 03:41:34,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:34,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:34,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:34,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:34,878 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:34,878 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:34,878 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:34,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:34,879 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:34,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:34,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:34,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:34,879 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:41:34,879 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:34,879 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:34,880 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 03:41:34,883 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 03:41:34,884 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 03:41:34,886 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 03:41:34,901 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:34,901 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:34,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:34,902 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,902 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:34,903 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:41:34,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:34,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:34,926 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-13 03:41:34,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:34,927 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,927 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 03:41:34,929 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 03:41:34,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:34,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:34,952 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:34,954 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 03:41:34,954 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:34,954 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:34,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:34,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:34,955 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:34,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:34,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:34,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:34,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2023-02-13 03:41:34,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:34,956 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:34,958 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 03:41:34,961 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 03:41:34,963 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 03:41:34,964 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 03:41:34,986 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:34,986 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:34,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:34,986 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:34,987 INFO L229 MonitoredProcess]: Starting monitored process 28 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 03:41:34,990 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:41:34,990 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 03:41:34,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:34,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:34,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:34,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:34,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:34,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:34,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:35,002 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:35,005 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:35,005 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:35,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:35,006 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:35,007 INFO L229 MonitoredProcess]: Starting monitored process 29 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:35,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:35,012 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:41:35,012 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:35,012 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:35,013 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2023-02-13 03:41:35,044 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:41:35,046 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:35,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:35,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:35,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:35,072 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:35,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:35,073 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 03:41:35,075 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:41:35,075 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 03:41:35,076 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 32 states and 49 transitions. cyclomatic complexity: 20 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:35,094 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 32 states and 49 transitions. cyclomatic complexity: 20. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 68 transitions. Complement of second has 4 states. [2023-02-13 03:41:35,094 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 03:41:35,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:41:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-02-13 03:41:35,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-13 03:41:35,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:35,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-13 03:41:35,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:35,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:41:35,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:35,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 68 transitions. [2023-02-13 03:41:35,101 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:35,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2023-02-13 03:41:35,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:41:35,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:41:35,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:41:35,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:35,103 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:35,103 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:35,103 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:35,103 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:41:35,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:41:35,104 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:35,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:41:35,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:35 BasicIcfg [2023-02-13 03:41:35,116 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:41:35,117 INFO L158 Benchmark]: Toolchain (without parser) took 3167.24ms. 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: -339.6MB). Peak memory consumption was 102.8MB. Max. memory is 42.9GB. [2023-02-13 03:41:35,117 INFO L158 Benchmark]: CDTParser took 0.14ms. 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 03:41:35,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 118.89ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:35,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:35,118 INFO L158 Benchmark]: Boogie Preprocessor took 8.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:35,118 INFO L158 Benchmark]: RCFGBuilder took 175.95ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:35,118 INFO L158 Benchmark]: BlockEncodingV2 took 34.36ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:35,119 INFO L158 Benchmark]: TraceAbstraction took 13.33ms. 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 03:41:35,119 INFO L158 Benchmark]: BuchiAutomizer took 2795.98ms. 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: -370.8MB). Peak memory consumption was 69.3MB. Max. memory is 42.9GB. [2023-02-13 03:41:35,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 118.89ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 15.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 8.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 175.95ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 34.36ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.33ms. 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 2795.98ms. 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: -370.8MB). Peak memory consumption was 69.3MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One nondeterministic module has affine ranking function j and consists of 8 locations. One nondeterministic module has affine ranking function -2 * i + 7 and consists of 15 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 6 iterations. TraceHistogramMax:4. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 72 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/11 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 25 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax173 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp88 dnf100 smp100 tf113 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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 03:41:35,156 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:35,365 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:41:35,581 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-02-13 03:41:35,766 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-13 03:41:35,968 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...