/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:35:51,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:35:51,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:35:51,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:35:51,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:35:51,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:35:51,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:35:51,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:35:51,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:35:51,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:35:51,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:35:51,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:35:51,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:35:51,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:35:51,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:35:51,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:35:51,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:35:51,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:35:51,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:35:51,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:35:51,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:35:51,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:35:51,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:35:51,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:35:51,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:35:51,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:35:51,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:35:51,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:35:51,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:35:51,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:35:51,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:35:51,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:35:51,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:35:51,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:35:51,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:35:51,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:35:51,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:35:51,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:35:51,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:35:51,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:35:51,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:35:51,712 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:35:51,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:35:51,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:35:51,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:35:51,727 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:35:51,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:35:51,728 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:35:51,728 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:35:51,728 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:35:51,728 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:35:51,728 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:35:51,729 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:35:51,729 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:35:51,729 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:35:51,729 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:35:51,729 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:51,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:35:51,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:35:51,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:35:51,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:35:51,730 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:35:51,730 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:35:51,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:35:51,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:35:51,731 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:35:51,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:35:51,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:35:51,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:35:51,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:35:51,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:35:51,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:35:51,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:35:51,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:35:51,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:35:51,913 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:35:51,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:35:51,979 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_12x6mp/tmp/fff9045c44b9449fbad7948e34618f7d/FLAG6035817d9 [2020-07-01 10:35:52,301 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:35:52,302 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:35:52,309 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_12x6mp/tmp/fff9045c44b9449fbad7948e34618f7d/FLAG6035817d9 [2020-07-01 10:35:52,720 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_12x6mp/tmp/fff9045c44b9449fbad7948e34618f7d [2020-07-01 10:35:52,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:35:52,732 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:35:52,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:35:52,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:35:52,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:35:52,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:35:52" (1/1) ... [2020-07-01 10:35:52,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ababfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:52, skipping insertion in model container [2020-07-01 10:35:52,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:35:52" (1/1) ... [2020-07-01 10:35:52,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:35:52,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:35:52,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:35:52,986 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:35:53,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:35:53,016 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:35:53,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53 WrapperNode [2020-07-01 10:35:53,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:35:53,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:35:53,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:35:53,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:35:53,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:35:53,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:35:53,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:35:53,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:35:53,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:35:53,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:35:53,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:35:53,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:35:53,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (1/1) ... No working directory specified, using /export/starexec/sandbox2/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 10:35:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2020-07-01 10:35:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2020-07-01 10:35:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:35:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:35:53,315 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:35:53,315 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 10:35:53,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:35:53 BoogieIcfgContainer [2020-07-01 10:35:53,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:35:53,320 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:35:53,320 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:35:53,323 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:35:53,324 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:35:53" (1/1) ... [2020-07-01 10:35:53,340 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 18 edges [2020-07-01 10:35:53,341 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:35:53,342 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:35:53,343 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:35:53,343 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:35:53,345 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:35:53,346 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:35:53,346 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:35:53,361 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:35:53,375 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 10:35:53,380 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:35:53,382 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:35:53,393 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:35:53,397 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-07-01 10:35:53,399 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:35:53,399 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:35:53,400 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:35:53,400 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:35:53,400 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 15 edges [2020-07-01 10:35:53,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:35:53 BasicIcfg [2020-07-01 10:35:53,401 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:35:53,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:35:53,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:35:53,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:35:53,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:35:52" (1/4) ... [2020-07-01 10:35:53,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be7af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:35:53, skipping insertion in model container [2020-07-01 10:35:53,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (2/4) ... [2020-07-01 10:35:53,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be7af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:35:53, skipping insertion in model container [2020-07-01 10:35:53,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:35:53" (3/4) ... [2020-07-01 10:35:53,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be7af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:35:53, skipping insertion in model container [2020-07-01 10:35:53,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:35:53" (4/4) ... [2020-07-01 10:35:53,410 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:35:53,422 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:35:53,431 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:35:53,450 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:35:53,476 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:35:53,477 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:35:53,477 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:35:53,477 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:35:53,477 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:35:53,477 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:35:53,477 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:35:53,478 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:35:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-07-01 10:35:53,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:35:53,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-07-01 10:35:53,574 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-07-01 10:35:53,574 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-01 10:35:53,575 INFO L271 CegarLoopResult]: At program point multENTRY(lines 12 20) the Hoare annotation is: true [2020-07-01 10:35:53,575 INFO L268 CegarLoopResult]: For program point L13(lines 13 15) no Hoare annotation was computed. [2020-07-01 10:35:53,575 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-07-01 10:35:53,575 INFO L268 CegarLoopResult]: For program point multFINAL(lines 12 20) no Hoare annotation was computed. [2020-07-01 10:35:53,575 INFO L268 CegarLoopResult]: For program point multEXIT(lines 12 20) no Hoare annotation was computed. [2020-07-01 10:35:53,576 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-01 10:35:53,576 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-07-01 10:35:53,576 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:35:53,576 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-07-01 10:35:53,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:35:53 BasicIcfg [2020-07-01 10:35:53,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:35:53,581 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:35:53,581 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:35:53,585 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:35:53,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:35:53,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:35:52" (1/5) ... [2020-07-01 10:35:53,586 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34d1d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:35:53, skipping insertion in model container [2020-07-01 10:35:53,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:35:53,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:35:53" (2/5) ... [2020-07-01 10:35:53,587 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34d1d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:35:53, skipping insertion in model container [2020-07-01 10:35:53,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:35:53,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:35:53" (3/5) ... [2020-07-01 10:35:53,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34d1d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:35:53, skipping insertion in model container [2020-07-01 10:35:53,588 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:35:53,588 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:35:53" (4/5) ... [2020-07-01 10:35:53,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34d1d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:35:53, skipping insertion in model container [2020-07-01 10:35:53,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:35:53,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:35:53" (5/5) ... [2020-07-01 10:35:53,590 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:35:53,624 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:35:53,625 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:35:53,625 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:35:53,625 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:35:53,625 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:35:53,625 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:35:53,625 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:35:53,626 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:35:53,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 10:35:53,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:35:53,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:35:53,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:35:53,657 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:35:53,657 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:35:53,657 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:35:53,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 10:35:53,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:35:53,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:35:53,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:35:53,660 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:35:53,660 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:35:53,665 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [35] ULTIMATE.startENTRY-->L25: Formula: (and (= v_ULTIMATE.start_main_~m~0_2 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|)) InVars {} OutVars{ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_2, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_2, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_4|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret4] 12#L25true [40] L25-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_5) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_5)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_5, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 3#multENTRYtrue [2020-07-01 10:35:53,665 INFO L796 eck$LassoCheckResult]: Loop: 3#multENTRYtrue [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 9#L13true [32] L13-->L14: Formula: (< v_mult_~m_2 0) InVars {mult_~m=v_mult_~m_2} OutVars{mult_~m=v_mult_~m_2} AuxVars[] AssignedVars[] 6#L14true [31] L14-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_1| v_mult_~n_5) (= |v_mult_#in~mInParam_1| (- v_mult_~m_8))) InVars {mult_~n=v_mult_~n_5, mult_~m=v_mult_~m_8} OutVars{mult_#in~m=|v_mult_#in~mInParam_1|, mult_#in~n=|v_mult_#in~nInParam_1|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 3#multENTRYtrue [2020-07-01 10:35:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:53,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2020-07-01 10:35:53,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:53,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817566283] [2020-07-01 10:35:53,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:53,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:53,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:53,751 INFO L82 PathProgramCache]: Analyzing trace with hash 56761, now seen corresponding path program 1 times [2020-07-01 10:35:53,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:53,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905240018] [2020-07-01 10:35:53,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:53,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:53,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:53,774 INFO L82 PathProgramCache]: Analyzing trace with hash 62170996, now seen corresponding path program 1 times [2020-07-01 10:35:53,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:53,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833146008] [2020-07-01 10:35:53,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:53,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:53,885 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:35:53,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:35:53,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:35:53,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:35:53,886 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:35:53,887 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:53,887 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:35:53,887 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:35:53,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:35:53,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:35:53,888 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:35:53,903 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 10:35:53,911 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 10:35:53,915 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 10:35:53,918 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 10:35:53,921 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 10:35:53,924 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 10:35:53,930 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 10:35:54,014 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:35:54,015 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 10:35:54,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:54,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:54,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:54,033 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 10:35:54,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:54,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:54,073 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:54,073 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 10:35:54,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:54,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:54,110 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:54,110 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 10:35:54,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:54,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:54,147 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:54,147 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:54,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:54,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:54,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:54,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:54,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:54,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:54,220 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:54,220 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:54,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:54,253 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 10:35:54,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:35:54,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:54,370 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:35:54,373 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:35:54,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:35:54,373 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:35:54,373 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:35:54,373 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:35:54,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:35:54,374 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:35:54,374 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:35:54,374 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:35:54,374 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:35:54,376 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 10:35:54,379 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 10:35:54,382 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 10:35:54,385 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 10:35:54,388 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 10:35:54,392 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 10:35:54,396 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 10:35:54,459 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:35:54,465 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,470 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 10:35:54,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:54,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:54,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:54,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:54,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:54,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:54,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:54,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,512 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 10:35:54,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:54,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:54,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:54,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:54,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:54,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:54,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:54,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,551 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 10:35:54,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:54,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:54,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:54,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:54,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:54,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:54,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:54,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,590 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 10:35:54,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:54,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:54,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:54,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:54,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:54,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:54,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:54,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,629 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 10:35:54,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:54,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:54,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:54,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:54,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:54,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:54,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:54,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,668 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 10:35:54,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:54,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:54,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:54,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:54,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:54,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:54,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:54,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,712 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 10:35:54,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:54,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:54,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:54,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:54,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:54,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:54,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:54,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:35:54,728 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 10:35:54,728 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:54,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:35:54,733 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:35:54,734 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:35:54,734 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2020-07-01 10:35:54,768 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:35:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:35:54,826 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:35:54,828 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:35:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:35:54,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 10:35:54,848 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:35:54,890 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 10:35:54,913 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:35:54,920 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 10:35:54,936 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states. Second operand 4 states. [2020-07-01 10:35:55,072 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states.. Second operand 4 states. Result 53 states and 71 transitions. Complement of second has 16 states. [2020-07-01 10:35:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 10:35:55,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 10:35:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2020-07-01 10:35:55,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 10:35:55,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:35:55,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 10:35:55,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:35:55,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 10:35:55,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:35:55,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 71 transitions. [2020-07-01 10:35:55,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:35:55,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 21 states and 27 transitions. [2020-07-01 10:35:55,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 10:35:55,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-07-01 10:35:55,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2020-07-01 10:35:55,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:35:55,102 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2020-07-01 10:35:55,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2020-07-01 10:35:55,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 12. [2020-07-01 10:35:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 10:35:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-07-01 10:35:55,134 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-07-01 10:35:55,134 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-07-01 10:35:55,134 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:35:55,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-07-01 10:35:55,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:35:55,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:35:55,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:35:55,135 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 10:35:55,135 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 10:35:55,136 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L25: Formula: (and (= v_ULTIMATE.start_main_~m~0_2 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|)) InVars {} OutVars{ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_2, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_2, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_4|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret4] 121#L25 [40] L25-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_5) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_5)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_5, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 120#multENTRY [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 123#L13 [45] L13-->L16: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 126#L16 [2020-07-01 10:35:55,136 INFO L796 eck$LassoCheckResult]: Loop: 126#L16 [48] L16-->L19: Formula: (> 0 v_mult_~m_6) InVars {mult_~m=v_mult_~m_6} OutVars{mult_~m=v_mult_~m_6} AuxVars[] AssignedVars[] 127#L19 [36] L19-->multENTRY: Formula: (and (= |v_mult_#in~mInParam_2| (+ v_mult_~m_9 (- 1))) (= |v_mult_#in~nInParam_2| v_mult_~n_6)) InVars {mult_~n=v_mult_~n_6, mult_~m=v_mult_~m_9} OutVars{mult_#in~m=|v_mult_#in~mInParam_2|, mult_#in~n=|v_mult_#in~nInParam_2|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 130#multENTRY [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 131#L13 [45] L13-->L16: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 126#L16 [2020-07-01 10:35:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:55,136 INFO L82 PathProgramCache]: Analyzing trace with hash 2005528, now seen corresponding path program 1 times [2020-07-01 10:35:55,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:55,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5015219] [2020-07-01 10:35:55,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,147 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:55,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:55,147 INFO L82 PathProgramCache]: Analyzing trace with hash 2388967, now seen corresponding path program 1 times [2020-07-01 10:35:55,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:55,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918189482] [2020-07-01 10:35:55,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:35:55,208 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 10:35:55,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918189482] [2020-07-01 10:35:55,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 10:35:55,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 10:35:55,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010541981] [2020-07-01 10:35:55,213 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 10:35:55,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 10:35:55,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 10:35:55,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-01 10:35:55,217 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 5 states. [2020-07-01 10:35:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 10:35:55,277 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2020-07-01 10:35:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 10:35:55,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2020-07-01 10:35:55,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 10:35:55,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 20 transitions. [2020-07-01 10:35:55,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-07-01 10:35:55,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-07-01 10:35:55,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2020-07-01 10:35:55,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:35:55,283 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-07-01 10:35:55,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2020-07-01 10:35:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-07-01 10:35:55,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-01 10:35:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2020-07-01 10:35:55,285 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-07-01 10:35:55,285 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-07-01 10:35:55,286 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:35:55,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2020-07-01 10:35:55,286 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 10:35:55,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:35:55,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:35:55,287 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 10:35:55,287 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 10:35:55,287 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L25: Formula: (and (= v_ULTIMATE.start_main_~m~0_2 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|)) InVars {} OutVars{ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_2, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_2, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_4|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret4] 167#L25 [40] L25-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_5) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_5)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_5, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 171#multENTRY [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 165#L13 [45] L13-->L16: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 168#L16 [2020-07-01 10:35:55,288 INFO L796 eck$LassoCheckResult]: Loop: 168#L16 [47] L16-->L19: Formula: (< 0 v_mult_~m_6) InVars {mult_~m=v_mult_~m_6} OutVars{mult_~m=v_mult_~m_6} AuxVars[] AssignedVars[] 159#L19 [36] L19-->multENTRY: Formula: (and (= |v_mult_#in~mInParam_2| (+ v_mult_~m_9 (- 1))) (= |v_mult_#in~nInParam_2| v_mult_~n_6)) InVars {mult_~n=v_mult_~n_6, mult_~m=v_mult_~m_9} OutVars{mult_#in~m=|v_mult_#in~mInParam_2|, mult_#in~n=|v_mult_#in~nInParam_2|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 158#multENTRY [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 161#L13 [45] L13-->L16: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 168#L16 [2020-07-01 10:35:55,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:55,288 INFO L82 PathProgramCache]: Analyzing trace with hash 2005528, now seen corresponding path program 2 times [2020-07-01 10:35:55,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:55,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534211367] [2020-07-01 10:35:55,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:55,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:55,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2359176, now seen corresponding path program 1 times [2020-07-01 10:35:55,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:55,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849103920] [2020-07-01 10:35:55,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:55,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:55,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1017755167, now seen corresponding path program 1 times [2020-07-01 10:35:55,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:55,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661626214] [2020-07-01 10:35:55,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:55,323 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:55,408 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:35:55,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:35:55,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:35:55,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:35:55,409 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:35:55,409 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:55,409 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:35:55,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:35:55,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:35:55,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:35:55,410 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:35:55,412 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 10:35:55,415 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 10:35:55,418 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 10:35:55,421 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 10:35:55,428 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 10:35:55,511 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:35:55,512 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:55,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:55,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:55,521 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:55,521 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:55,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:55,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:55,558 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:55,558 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:55,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:55,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:55,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:55,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:55,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:55,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:55,632 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:35:55,632 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0, mult_#in~n=0} Honda state: {mult_~n=0, mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:55,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:35:55,664 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:35:55,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:35:55,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:35:57,037 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:35:57,040 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:35:57,040 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:35:57,040 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:35:57,040 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:35:57,040 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:35:57,040 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:57,040 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:35:57,040 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:35:57,041 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:35:57,041 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:35:57,041 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:35:57,042 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 10:35:57,056 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 10:35:57,059 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 10:35:57,062 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 10:35:57,065 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 10:35:57,123 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:35:57,124 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:57,127 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 10:35:57,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:35:57,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:35:57,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:35:57,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:35:57,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:35:57,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:35:57,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:35:57,135 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:35:57,142 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:35:57,142 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:35:57,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:35:57,148 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:35:57,148 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:35:57,148 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2020-07-01 10:35:57,178 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:35:57,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:35:57,202 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:35:57,202 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:35:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:35:57,224 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 10:35:57,225 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:35:57,268 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 10:35:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:57,323 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 10:35:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:35:57,337 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 10:35:57,338 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:35:57,346 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 10:35:57,346 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 5 loop predicates [2020-07-01 10:35:57,346 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 5 states. [2020-07-01 10:35:57,447 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand 5 states. Result 73 states and 96 transitions. Complement of second has 60 states. [2020-07-01 10:35:57,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2020-07-01 10:35:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:35:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2020-07-01 10:35:57,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 10:35:57,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:35:57,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 10:35:57,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:35:57,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 4 letters. Loop has 8 letters. [2020-07-01 10:35:57,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:35:57,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 96 transitions. [2020-07-01 10:35:57,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2020-07-01 10:35:57,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 30 states and 38 transitions. [2020-07-01 10:35:57,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-07-01 10:35:57,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-07-01 10:35:57,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2020-07-01 10:35:57,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:35:57,458 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-07-01 10:35:57,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2020-07-01 10:35:57,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2020-07-01 10:35:57,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 10:35:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2020-07-01 10:35:57,461 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-07-01 10:35:57,461 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-07-01 10:35:57,461 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 10:35:57,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2020-07-01 10:35:57,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-07-01 10:35:57,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:35:57,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:35:57,462 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 10:35:57,462 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2020-07-01 10:35:57,462 INFO L794 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L25: Formula: (and (= v_ULTIMATE.start_main_~m~0_2 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~n~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|)) InVars {} OutVars{ULTIMATE.start_main_~res~0=v_ULTIMATE.start_main_~res~0_2, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_2, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_2, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_4|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_~res~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret4] 376#L25 [40] L25-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_5) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_5)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_5, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 381#multENTRY [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 383#L13 [45] L13-->L16: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 384#L16 [2020-07-01 10:35:57,463 INFO L796 eck$LassoCheckResult]: Loop: 384#L16 [47] L16-->L19: Formula: (< 0 v_mult_~m_6) InVars {mult_~m=v_mult_~m_6} OutVars{mult_~m=v_mult_~m_6} AuxVars[] AssignedVars[] 370#L19 [36] L19-->multENTRY: Formula: (and (= |v_mult_#in~mInParam_2| (+ v_mult_~m_9 (- 1))) (= |v_mult_#in~nInParam_2| v_mult_~n_6)) InVars {mult_~n=v_mult_~n_6, mult_~m=v_mult_~m_9} OutVars{mult_#in~m=|v_mult_#in~mInParam_2|, mult_#in~n=|v_mult_#in~nInParam_2|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 369#multENTRY [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 371#L13 [32] L13-->L14: Formula: (< v_mult_~m_2 0) InVars {mult_~m=v_mult_~m_2} OutVars{mult_~m=v_mult_~m_2} AuxVars[] AssignedVars[] 367#L14 [31] L14-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_1| v_mult_~n_5) (= |v_mult_#in~mInParam_1| (- v_mult_~m_8))) InVars {mult_~n=v_mult_~n_5, mult_~m=v_mult_~m_8} OutVars{mult_#in~m=|v_mult_#in~mInParam_1|, mult_#in~n=|v_mult_#in~nInParam_1|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 366#multENTRY [27] multENTRY-->L13: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 368#L13 [45] L13-->L16: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 384#L16 [2020-07-01 10:35:57,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:57,463 INFO L82 PathProgramCache]: Analyzing trace with hash 2005528, now seen corresponding path program 3 times [2020-07-01 10:35:57,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:57,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734532797] [2020-07-01 10:35:57,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:35:57,471 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:35:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:35:57,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1562378870, now seen corresponding path program 1 times [2020-07-01 10:35:57,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:35:57,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757229716] [2020-07-01 10:35:57,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:35:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:35:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:35:57,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757229716] [2020-07-01 10:35:57,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 10:35:57,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 10:35:57,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247250760] [2020-07-01 10:35:57,508 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 10:35:57,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 10:35:57,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 10:35:57,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-01 10:35:57,509 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-07-01 10:35:57,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 10:35:57,544 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-07-01 10:35:57,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 10:35:57,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-07-01 10:35:57,547 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:35:57,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-07-01 10:35:57,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:35:57,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:35:57,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:35:57,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:35:57,547 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:35:57,547 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:35:57,548 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:35:57,548 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 10:35:57,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:35:57,548 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:35:57,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:35:57,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:35:57 BasicIcfg [2020-07-01 10:35:57,555 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:35:57,557 INFO L168 Benchmark]: Toolchain (without parser) took 4823.99 ms. Allocated memory was 514.9 MB in the beginning and 596.1 MB in the end (delta: 81.3 MB). Free memory was 435.7 MB in the beginning and 402.8 MB in the end (delta: 32.8 MB). Peak memory consumption was 114.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,557 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 455.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:35:57,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.91 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 435.1 MB in the beginning and 536.9 MB in the end (delta: -101.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 567.8 MB. Free memory was 536.9 MB in the beginning and 535.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,559 INFO L168 Benchmark]: Boogie Preprocessor took 17.23 ms. Allocated memory is still 567.8 MB. Free memory was 535.4 MB in the beginning and 534.6 MB in the end (delta: 749.6 kB). Peak memory consumption was 749.6 kB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,560 INFO L168 Benchmark]: RCFGBuilder took 249.68 ms. Allocated memory is still 567.8 MB. Free memory was 533.9 MB in the beginning and 522.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,560 INFO L168 Benchmark]: BlockEncodingV2 took 81.36 ms. Allocated memory is still 567.8 MB. Free memory was 522.0 MB in the beginning and 516.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,561 INFO L168 Benchmark]: TraceAbstraction took 178.11 ms. Allocated memory is still 567.8 MB. Free memory was 516.0 MB in the beginning and 506.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,561 INFO L168 Benchmark]: BuchiAutomizer took 3973.57 ms. Allocated memory was 567.8 MB in the beginning and 596.1 MB in the end (delta: 28.3 MB). Free memory was 505.4 MB in the beginning and 402.8 MB in the end (delta: 102.6 MB). Peak memory consumption was 130.9 MB. Max. memory is 50.3 GB. [2020-07-01 10:35:57,565 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 11 locations, 15 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 455.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 282.91 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 435.1 MB in the beginning and 536.9 MB in the end (delta: -101.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 567.8 MB. Free memory was 536.9 MB in the beginning and 535.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.23 ms. Allocated memory is still 567.8 MB. Free memory was 535.4 MB in the beginning and 534.6 MB in the end (delta: 749.6 kB). Peak memory consumption was 749.6 kB. Max. memory is 50.3 GB. * RCFGBuilder took 249.68 ms. Allocated memory is still 567.8 MB. Free memory was 533.9 MB in the beginning and 522.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.36 ms. Allocated memory is still 567.8 MB. Free memory was 522.0 MB in the beginning and 516.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 178.11 ms. Allocated memory is still 567.8 MB. Free memory was 516.0 MB in the beginning and 506.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3973.57 ms. Allocated memory was 567.8 MB in the beginning and 596.1 MB in the end (delta: 28.3 MB). Free memory was 505.4 MB in the beginning and 402.8 MB in the end (delta: 102.6 MB). Peak memory consumption was 130.9 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, 11 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=11occurred 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, 4 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 4 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One nondeterministic module has affine ranking function m and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 41 SDtfs, 53 SDslu, 31 SDs, 0 SdLazy, 114 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp100 dnf100 smp100 tf111 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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 10:35:49.493 ----------------------------------------------- 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/sandbox2/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/sandbox2/tmp/BenchExec_run_12x6mp/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:35:57.998 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check