/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:18:21,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:18:21,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:18:21,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:18:21,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:18:21,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:18:21,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:18:21,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:18:21,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:18:21,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:18:21,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:18:21,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:18:21,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:18:21,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:18:21,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:18:21,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:18:21,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:18:21,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:18:21,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:18:21,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:18:21,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:18:21,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:18:21,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:18:21,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:18:21,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:18:21,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:18:21,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:18:21,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:18:21,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:18:21,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:18:21,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:18:21,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:18:21,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:18:21,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:18:21,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:18:21,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:18:21,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:18:21,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:18:21,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:18:21,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:18:21,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:18:21,805 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:18:21,819 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:18:21,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:18:21,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:18:21,821 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:18:21,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:18:21,821 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:18:21,821 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:18:21,821 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:18:21,822 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:18:21,822 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:18:21,822 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:18:21,822 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:18:21,822 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:18:21,822 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:18:21,823 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:21,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:18:21,823 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:18:21,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:18:21,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:18:21,824 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:18:21,824 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:18:21,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:18:21,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:18:21,824 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:18:21,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:18:21,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:18:21,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:18:21,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:18:21,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:18:21,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:18:22,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:18:22,005 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:18:22,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:18:22,007 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:18:22,008 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:18:22,068 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_3MfNS9/tmp/dfe5a016b8df40c181dda4b442cf6a99/FLAG36efb527f [2020-07-01 12:18:22,392 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:18:22,393 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:18:22,400 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_3MfNS9/tmp/dfe5a016b8df40c181dda4b442cf6a99/FLAG36efb527f [2020-07-01 12:18:22,804 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_3MfNS9/tmp/dfe5a016b8df40c181dda4b442cf6a99 [2020-07-01 12:18:22,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:18:22,816 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:18:22,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:18:22,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:18:22,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:18:22,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:18:22" (1/1) ... [2020-07-01 12:18:22,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589c2778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:22, skipping insertion in model container [2020-07-01 12:18:22,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:18:22" (1/1) ... [2020-07-01 12:18:22,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:18:22,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:18:23,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:18:23,082 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:18:23,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:18:23,113 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:18:23,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23 WrapperNode [2020-07-01 12:18:23,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:18:23,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:18:23,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:18:23,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:18:23,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:18:23,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:18:23,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:18:23,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:18:23,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:18:23,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:18:23,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:18:23,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:18:23,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:18:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-07-01 12:18:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-07-01 12:18:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:18:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:18:23,407 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:18:23,408 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 12:18:23,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23 BoogieIcfgContainer [2020-07-01 12:18:23,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:18:23,412 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:18:23,412 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:18:23,415 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:18:23,415 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,429 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 18 edges [2020-07-01 12:18:23,431 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:18:23,432 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:18:23,432 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:18:23,432 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:18:23,434 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:18:23,435 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:18:23,435 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:18:23,448 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:18:23,463 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 12:18:23,467 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:18:23,469 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:18:23,476 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:18:23,478 INFO L70 RemoveSinkStates]: Removed 7 edges and 5 locations by removing sink states [2020-07-01 12:18:23,480 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:18:23,480 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:18:23,486 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:18:23,486 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:18:23,486 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:18:23,487 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:18:23,487 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:18:23,487 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:18:23,487 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 10 edges [2020-07-01 12:18:23,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:18:23 BasicIcfg [2020-07-01 12:18:23,488 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:18:23,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:18:23,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:18:23,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:18:23,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:18:22" (1/4) ... [2020-07-01 12:18:23,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df4da15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (2/4) ... [2020-07-01 12:18:23,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df4da15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23" (3/4) ... [2020-07-01 12:18:23,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df4da15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:18:23" (4/4) ... [2020-07-01 12:18:23,497 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:18:23,508 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:18:23,516 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:18:23,531 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:18:23,554 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:18:23,555 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:18:23,555 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:18:23,555 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:18:23,555 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:18:23,555 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:18:23,555 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:18:23,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:18:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-01 12:18:23,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:18:23,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-07-01 12:18:23,644 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-07-01 12:18:23,644 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-07-01 12:18:23,645 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-07-01 12:18:23,645 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-07-01 12:18:23,645 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-01 12:18:23,645 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-07-01 12:18:23,646 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:18:23,646 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-07-01 12:18:23,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:18:23 BasicIcfg [2020-07-01 12:18:23,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:18:23,651 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:18:23,651 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:18:23,654 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:18:23,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:18:22" (1/5) ... [2020-07-01 12:18:23,656 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c8b82fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,656 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (2/5) ... [2020-07-01 12:18:23,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c8b82fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23" (3/5) ... [2020-07-01 12:18:23,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c8b82fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:18:23" (4/5) ... [2020-07-01 12:18:23,658 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c8b82fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,659 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:18:23" (5/5) ... [2020-07-01 12:18:23,661 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:18:23,693 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:18:23,693 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:18:23,693 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:18:23,693 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:18:23,693 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:18:23,694 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:18:23,694 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:18:23,694 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:18:23,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 12:18:23,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:18:23,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:18:23,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:18:23,722 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:18:23,722 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:18:23,722 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:18:23,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 12:18:23,723 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:18:23,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:18:23,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:18:23,724 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:18:23,724 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:18:23,729 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [57] ULTIMATE.startENTRY-->L29: Formula: (and (<= v_ULTIMATE.start_main_~n~0_8 31) (<= 1 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~result~0] 9#L29true [36] L29-->hanoiENTRY: Formula: (= |v_hanoi_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7} OutVars{hanoi_#in~n=|v_hanoi_#in~nInParam_2|} AuxVars[] AssignedVars[hanoi_#in~n]< 8#hanoiENTRYtrue [2020-07-01 12:18:23,729 INFO L796 eck$LassoCheckResult]: Loop: 8#hanoiENTRYtrue [35] hanoiENTRY-->L17: Formula: (= v_hanoi_~n_1 |v_hanoi_#in~n_1|) InVars {hanoi_#in~n=|v_hanoi_#in~n_1|} OutVars{hanoi_#in~n=|v_hanoi_#in~n_1|, hanoi_~n=v_hanoi_~n_1} AuxVars[] AssignedVars[hanoi_~n] 10#L17true [54] L17-->L20: Formula: (> v_hanoi_~n_3 1) InVars {hanoi_~n=v_hanoi_~n_3} OutVars{hanoi_~n=v_hanoi_~n_3} AuxVars[] AssignedVars[] 7#L20true [41] L20-->hanoiENTRY: Formula: (= |v_hanoi_#in~nInParam_1| (+ v_hanoi_~n_5 (- 1))) InVars {hanoi_~n=v_hanoi_~n_5} OutVars{hanoi_#in~n=|v_hanoi_#in~nInParam_1|} AuxVars[] AssignedVars[hanoi_#in~n]< 8#hanoiENTRYtrue [2020-07-01 12:18:23,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:23,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2764, now seen corresponding path program 1 times [2020-07-01 12:18:23,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:23,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974949969] [2020-07-01 12:18:23,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:23,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:23,822 INFO L82 PathProgramCache]: Analyzing trace with hash 65141, now seen corresponding path program 1 times [2020-07-01 12:18:23,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:23,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839608773] [2020-07-01 12:18:23,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,832 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:23,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:23,834 INFO L82 PathProgramCache]: Analyzing trace with hash 82377674, now seen corresponding path program 1 times [2020-07-01 12:18:23,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:23,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943919869] [2020-07-01 12:18:23,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:23,924 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:23,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:23,925 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:23,925 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:23,925 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:18:23,925 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:23,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:23,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:23,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:18:23,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:23,926 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:23,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:23,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:23,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:23,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,006 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:24,007 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,024 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:24,024 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#res=0} Honda state: {hanoi_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,063 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:24,063 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_~n=0} Honda state: {hanoi_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,096 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:18:24,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,215 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:18:24,218 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:24,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:24,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:24,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:24,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:18:24,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:24,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:24,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:24,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:18:24,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:24,219 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:24,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,282 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:24,288 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:24,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:24,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:24,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:18:24,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:24,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:24,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:24,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:24,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:18:24,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:24,362 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:18:24,368 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:18:24,368 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:24,372 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:18:24,372 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:18:24,373 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:18:24,373 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(hanoi_#in~n) = 1*hanoi_#in~n Supporting invariants [] [2020-07-01 12:18:24,407 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:18:24,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:24,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:18:24,462 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:24,480 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 12:18:24,481 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:18:24,531 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:18:24,537 INFO L152 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 [2020-07-01 12:18:24,538 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states. Second operand 4 states. [2020-07-01 12:18:24,662 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states.. Second operand 4 states. Result 57 states and 82 transitions. Complement of second has 24 states. [2020-07-01 12:18:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 12:18:24,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:18:24,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2020-07-01 12:18:24,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 12:18:24,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:24,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 12:18:24,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:24,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 12:18:24,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:24,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 82 transitions. [2020-07-01 12:18:24,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:18:24,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 21 states and 26 transitions. [2020-07-01 12:18:24,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 12:18:24,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-01 12:18:24,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2020-07-01 12:18:24,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:18:24,695 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2020-07-01 12:18:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2020-07-01 12:18:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 11. [2020-07-01 12:18:24,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 12:18:24,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-07-01 12:18:24,726 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 12:18:24,726 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 12:18:24,726 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:18:24,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-07-01 12:18:24,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:18:24,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:18:24,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:18:24,727 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:18:24,728 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:18:24,728 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY [57] ULTIMATE.startENTRY-->L29: Formula: (and (<= v_ULTIMATE.start_main_~n~0_8 31) (<= 1 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~result~0] 131#L29 [36] L29-->hanoiENTRY: Formula: (= |v_hanoi_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7} OutVars{hanoi_#in~n=|v_hanoi_#in~nInParam_2|} AuxVars[] AssignedVars[hanoi_#in~n]< 140#hanoiENTRY [35] hanoiENTRY-->L17: Formula: (= v_hanoi_~n_1 |v_hanoi_#in~n_1|) InVars {hanoi_#in~n=|v_hanoi_#in~n_1|} OutVars{hanoi_#in~n=|v_hanoi_#in~n_1|, hanoi_~n=v_hanoi_~n_1} AuxVars[] AssignedVars[hanoi_~n] 137#L17 [2020-07-01 12:18:24,728 INFO L796 eck$LassoCheckResult]: Loop: 137#L17 [55] L17-->L20: Formula: (< v_hanoi_~n_3 1) InVars {hanoi_~n=v_hanoi_~n_3} OutVars{hanoi_~n=v_hanoi_~n_3} AuxVars[] AssignedVars[] 132#L20 [41] L20-->hanoiENTRY: Formula: (= |v_hanoi_#in~nInParam_1| (+ v_hanoi_~n_5 (- 1))) InVars {hanoi_~n=v_hanoi_~n_5} OutVars{hanoi_#in~n=|v_hanoi_#in~nInParam_1|} AuxVars[] AssignedVars[hanoi_#in~n]< 134#hanoiENTRY [35] hanoiENTRY-->L17: Formula: (= v_hanoi_~n_1 |v_hanoi_#in~n_1|) InVars {hanoi_#in~n=|v_hanoi_#in~n_1|} OutVars{hanoi_#in~n=|v_hanoi_#in~n_1|, hanoi_~n=v_hanoi_~n_1} AuxVars[] AssignedVars[hanoi_~n] 137#L17 [2020-07-01 12:18:24,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:24,729 INFO L82 PathProgramCache]: Analyzing trace with hash 85719, now seen corresponding path program 1 times [2020-07-01 12:18:24,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:24,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103323401] [2020-07-01 12:18:24,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:24,739 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:24,739 INFO L82 PathProgramCache]: Analyzing trace with hash 83952, now seen corresponding path program 1 times [2020-07-01 12:18:24,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:24,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258295705] [2020-07-01 12:18:24,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:24,747 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:24,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:24,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1741258406, now seen corresponding path program 1 times [2020-07-01 12:18:24,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:24,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766490971] [2020-07-01 12:18:24,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:18:24,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766490971] [2020-07-01 12:18:24,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:18:24,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 12:18:24,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96840722] [2020-07-01 12:18:24,830 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:24,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:24,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:24,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:24,831 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:18:24,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,831 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:24,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:24,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:18:24,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:24,832 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:24,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,892 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:24,892 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,906 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:24,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#res=0} Honda state: {hanoi_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:24,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#t~ret0=0} Honda state: {hanoi_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,977 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:25,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:18:25,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:26,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:26,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#in~n=-4, hanoi_~n=-9} Honda state: {hanoi_#in~n=-4, hanoi_~n=-9} Generalized eigenvectors: [{hanoi_#in~n=2, hanoi_~n=0}, {hanoi_#in~n=-1, hanoi_~n=-1}, {hanoi_#in~n=-7, hanoi_~n=0}] Lambdas: [0, 1, 0] Nus: [0, 0] [2020-07-01 12:18:26,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:18:26,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 12:18:26,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 12:18:26,150 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-07-01 12:18:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:18:26,180 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-07-01 12:18:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 12:18:26,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-07-01 12:18:26,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:18:26,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 15 transitions. [2020-07-01 12:18:26,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:18:26,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 12:18:26,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2020-07-01 12:18:26,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:18:26,185 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-07-01 12:18:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2020-07-01 12:18:26,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-01 12:18:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 12:18:26,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-07-01 12:18:26,187 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-07-01 12:18:26,187 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-07-01 12:18:26,187 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:18:26,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2020-07-01 12:18:26,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:18:26,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:18:26,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:18:26,189 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 12:18:26,189 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:18:26,189 INFO L794 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY [57] ULTIMATE.startENTRY-->L29: Formula: (and (<= v_ULTIMATE.start_main_~n~0_8 31) (<= 1 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~result~0] 168#L29 [36] L29-->hanoiENTRY: Formula: (= |v_hanoi_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7} OutVars{hanoi_#in~n=|v_hanoi_#in~nInParam_2|} AuxVars[] AssignedVars[hanoi_#in~n]< 174#hanoiENTRY [35] hanoiENTRY-->L17: Formula: (= v_hanoi_~n_1 |v_hanoi_#in~n_1|) InVars {hanoi_#in~n=|v_hanoi_#in~n_1|} OutVars{hanoi_#in~n=|v_hanoi_#in~n_1|, hanoi_~n=v_hanoi_~n_1} AuxVars[] AssignedVars[hanoi_~n] 175#L17 [54] L17-->L20: Formula: (> v_hanoi_~n_3 1) InVars {hanoi_~n=v_hanoi_~n_3} OutVars{hanoi_~n=v_hanoi_~n_3} AuxVars[] AssignedVars[] 170#L20 [41] L20-->hanoiENTRY: Formula: (= |v_hanoi_#in~nInParam_1| (+ v_hanoi_~n_5 (- 1))) InVars {hanoi_~n=v_hanoi_~n_5} OutVars{hanoi_#in~n=|v_hanoi_#in~nInParam_1|} AuxVars[] AssignedVars[hanoi_#in~n]< 178#hanoiENTRY [35] hanoiENTRY-->L17: Formula: (= v_hanoi_~n_1 |v_hanoi_#in~n_1|) InVars {hanoi_#in~n=|v_hanoi_#in~n_1|} OutVars{hanoi_#in~n=|v_hanoi_#in~n_1|, hanoi_~n=v_hanoi_~n_1} AuxVars[] AssignedVars[hanoi_~n] 177#L17 [2020-07-01 12:18:26,190 INFO L796 eck$LassoCheckResult]: Loop: 177#L17 [55] L17-->L20: Formula: (< v_hanoi_~n_3 1) InVars {hanoi_~n=v_hanoi_~n_3} OutVars{hanoi_~n=v_hanoi_~n_3} AuxVars[] AssignedVars[] 169#L20 [41] L20-->hanoiENTRY: Formula: (= |v_hanoi_#in~nInParam_1| (+ v_hanoi_~n_5 (- 1))) InVars {hanoi_~n=v_hanoi_~n_5} OutVars{hanoi_#in~n=|v_hanoi_#in~nInParam_1|} AuxVars[] AssignedVars[hanoi_#in~n]< 171#hanoiENTRY [35] hanoiENTRY-->L17: Formula: (= v_hanoi_~n_1 |v_hanoi_#in~n_1|) InVars {hanoi_#in~n=|v_hanoi_#in~n_1|} OutVars{hanoi_#in~n=|v_hanoi_#in~n_1|, hanoi_~n=v_hanoi_~n_1} AuxVars[] AssignedVars[hanoi_~n] 177#L17 [2020-07-01 12:18:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:26,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1741259367, now seen corresponding path program 2 times [2020-07-01 12:18:26,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:26,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192438290] [2020-07-01 12:18:26,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:26,202 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:26,202 INFO L82 PathProgramCache]: Analyzing trace with hash 83952, now seen corresponding path program 2 times [2020-07-01 12:18:26,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:26,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94896627] [2020-07-01 12:18:26,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:26,210 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:26,211 INFO L82 PathProgramCache]: Analyzing trace with hash 757252952, now seen corresponding path program 1 times [2020-07-01 12:18:26,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:26,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232612618] [2020-07-01 12:18:26,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:18:26,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232612618] [2020-07-01 12:18:26,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:18:26,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-01 12:18:26,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802442086] [2020-07-01 12:18:26,286 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:26,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:26,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:26,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:26,286 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:18:26,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:26,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:26,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:26,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:18:26,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:26,287 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:26,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:26,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:26,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:26,328 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:26,329 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:26,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:26,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:26,336 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:26,336 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#t~ret0=0} Honda state: {hanoi_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:26,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:26,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:26,372 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:26,372 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#res=0} Honda state: {hanoi_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:26,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:26,405 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:26,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:18:26,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:26,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:26,602 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#in~n=0, hanoi_~n=-2} Honda state: {hanoi_#in~n=0, hanoi_~n=-2} Generalized eigenvectors: [{hanoi_#in~n=-1, hanoi_~n=-1}, {hanoi_#in~n=1, hanoi_~n=0}, {hanoi_#in~n=-3, hanoi_~n=0}] Lambdas: [1, 3, 0] Nus: [0, 1] [2020-07-01 12:18:26,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:18:26,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 12:18:26,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-01 12:18:26,633 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-07-01 12:18:26,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:18:26,659 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-07-01 12:18:26,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 12:18:26,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 9 transitions. [2020-07-01 12:18:26,663 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:18:26,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2020-07-01 12:18:26,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:18:26,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:18:26,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:18:26,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:18:26,663 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:18:26,664 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:18:26,664 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:18:26,664 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:18:26,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:18:26,664 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:18:26,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:18:26,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:18:26 BasicIcfg [2020-07-01 12:18:26,670 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:18:26,672 INFO L168 Benchmark]: Toolchain (without parser) took 3855.51 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 556.3 MB in the beginning and 438.3 MB in the end (delta: 118.0 MB). Peak memory consumption was 161.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,673 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:18:26,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.48 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 556.3 MB in the beginning and 656.0 MB in the end (delta: -99.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 692.6 MB. Free memory was 656.0 MB in the beginning and 654.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,675 INFO L168 Benchmark]: Boogie Preprocessor took 17.58 ms. Allocated memory is still 692.6 MB. Free memory was 654.6 MB in the beginning and 653.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,675 INFO L168 Benchmark]: RCFGBuilder took 244.65 ms. Allocated memory is still 692.6 MB. Free memory was 653.3 MB in the beginning and 637.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,676 INFO L168 Benchmark]: BlockEncodingV2 took 75.93 ms. Allocated memory is still 692.6 MB. Free memory was 637.5 MB in the beginning and 632.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,676 INFO L168 Benchmark]: TraceAbstraction took 160.67 ms. Allocated memory is still 692.6 MB. Free memory was 632.2 MB in the beginning and 622.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,677 INFO L168 Benchmark]: BuchiAutomizer took 3019.54 ms. Allocated memory is still 692.6 MB. Free memory was 622.6 MB in the beginning and 438.3 MB in the end (delta: 184.3 MB). Peak memory consumption was 184.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:18:26,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 18 edges - StatisticsResult: Encoded RCFG 8 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 296.48 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 556.3 MB in the beginning and 656.0 MB in the end (delta: -99.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 692.6 MB. Free memory was 656.0 MB in the beginning and 654.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.58 ms. Allocated memory is still 692.6 MB. Free memory was 654.6 MB in the beginning and 653.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 244.65 ms. Allocated memory is still 692.6 MB. Free memory was 653.3 MB in the beginning and 637.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.93 ms. Allocated memory is still 692.6 MB. Free memory was 637.5 MB in the beginning and 632.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 160.67 ms. Allocated memory is still 692.6 MB. Free memory was 632.2 MB in the beginning and 622.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3019.54 ms. Allocated memory is still 692.6 MB. Free memory was 622.6 MB in the beginning and 438.3 MB in the end (delta: 184.3 MB). Peak memory consumption was 184.3 MB. Max. memory is 50.3 GB. * 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: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function \old(n) and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 26 SDslu, 24 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:18:19.601 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_3MfNS9/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:18:27.116 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check