/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:03:53,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:03:53,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:03:53,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:03:53,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:03:53,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:03:53,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:03:53,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:03:53,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:03:53,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:03:53,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:03:53,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:03:53,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:03:53,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:03:53,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:03:53,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:03:53,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:03:53,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:03:53,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:03:53,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:03:53,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:03:53,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:03:53,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:03:53,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:03:53,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:03:53,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:03:53,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:03:53,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:03:53,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:03:53,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:03:53,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:03:53,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:03:53,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:03:53,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:03:53,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:03:53,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:03:53,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:03:53,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:03:53,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:03:53,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:03:53,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:03:53,681 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:03:53,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:03:53,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:03:53,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:03:53,697 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:03:53,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:03:53,698 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:03:53,698 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:03:53,698 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:03:53,698 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:03:53,698 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:03:53,699 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:03:53,699 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:03:53,699 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:03:53,699 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:03:53,699 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:03:53,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:03:53,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:03:53,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:03:53,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:03:53,700 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:03:53,700 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:03:53,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:03:53,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:03:53,701 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:03:53,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:03:53,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:03:53,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:03:53,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:03:53,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:03:53,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:03:53,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:03:53,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:03:53,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:03:53,896 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:03:53,897 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:03:53,997 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_7sUh83/tmp/075b4dc7985e4d0a8cb4076e32bc9438/FLAGd7b50e051 [2020-07-01 12:03:54,323 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:03:54,323 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:03:54,330 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_7sUh83/tmp/075b4dc7985e4d0a8cb4076e32bc9438/FLAGd7b50e051 [2020-07-01 12:03:54,735 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_7sUh83/tmp/075b4dc7985e4d0a8cb4076e32bc9438 [2020-07-01 12:03:54,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:03:54,748 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:03:54,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:03:54,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:03:54,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:03:54,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:03:54" (1/1) ... [2020-07-01 12:03:54,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280593db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:54, skipping insertion in model container [2020-07-01 12:03:54,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:03:54" (1/1) ... [2020-07-01 12:03:54,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:03:54,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:03:55,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:03:55,010 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:03:55,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:03:55,041 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:03:55,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55 WrapperNode [2020-07-01 12:03:55,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:03:55,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:03:55,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:03:55,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:03:55,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:03:55,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:03:55,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:03:55,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:03:55,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:03:55,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:03:55,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:03:55,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:03:55,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:03:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:03:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:03:55,327 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:03:55,328 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:03:55,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:03:55 BoogieIcfgContainer [2020-07-01 12:03:55,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:03:55,332 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:03:55,332 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:03:55,334 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:03:55,335 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:03:55" (1/1) ... [2020-07-01 12:03:55,347 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2020-07-01 12:03:55,348 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:03:55,349 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:03:55,350 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:03:55,350 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:03:55,352 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:03:55,352 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:03:55,353 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:03:55,365 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:03:55,372 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:03:55,377 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:03:55,379 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:03:55,396 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:03:55,398 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:03:55,399 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:03:55,399 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:03:55,399 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:03:55,400 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:03:55,400 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 12:03:55,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:03:55 BasicIcfg [2020-07-01 12:03:55,401 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:03:55,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:03:55,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:03:55,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:03:55,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:03:54" (1/4) ... [2020-07-01 12:03:55,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b18e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:03:55, skipping insertion in model container [2020-07-01 12:03:55,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (2/4) ... [2020-07-01 12:03:55,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b18e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:03:55, skipping insertion in model container [2020-07-01 12:03:55,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:03:55" (3/4) ... [2020-07-01 12:03:55,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b18e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:03:55, skipping insertion in model container [2020-07-01 12:03:55,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:03:55" (4/4) ... [2020-07-01 12:03:55,409 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:03:55,420 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:03:55,427 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:03:55,441 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:03:55,464 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:03:55,464 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:03:55,464 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:03:55,464 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:03:55,464 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:03:55,465 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:03:55,465 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:03:55,465 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:03:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 12:03:55,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:03:55,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 12:03:55,537 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:03:55,538 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 9) the Hoare annotation is: true [2020-07-01 12:03:55,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:03:55 BasicIcfg [2020-07-01 12:03:55,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:03:55,547 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:03:55,547 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:03:55,551 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:03:55,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:03:55,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:03:54" (1/5) ... [2020-07-01 12:03:55,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47db15ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:03:55, skipping insertion in model container [2020-07-01 12:03:55,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:03:55,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:03:55" (2/5) ... [2020-07-01 12:03:55,553 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47db15ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:03:55, skipping insertion in model container [2020-07-01 12:03:55,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:03:55,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:03:55" (3/5) ... [2020-07-01 12:03:55,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47db15ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:03:55, skipping insertion in model container [2020-07-01 12:03:55,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:03:55,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:03:55" (4/5) ... [2020-07-01 12:03:55,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47db15ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:03:55, skipping insertion in model container [2020-07-01 12:03:55,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:03:55,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:03:55" (5/5) ... [2020-07-01 12:03:55,556 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:03:55,586 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:03:55,586 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:03:55,586 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:03:55,586 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:03:55,586 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:03:55,586 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:03:55,587 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:03:55,587 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:03:55,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:03:55,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:03:55,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:03:55,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:03:55,613 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:03:55,613 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:03:55,613 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:03:55,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:03:55,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:03:55,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:03:55,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:03:55,614 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:03:55,614 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:03:55,619 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [21] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_2|) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_2|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_3|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_2|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 4#L6-2true [2020-07-01 12:03:55,620 INFO L796 eck$LassoCheckResult]: Loop: 4#L6-2true [27] L6-2-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (< v_ULTIMATE.start_test_fun_~y_4 v_ULTIMATE.start_test_fun_~x_5) (= v_ULTIMATE.start_test_fun_~x_4 (+ v_ULTIMATE.start_test_fun_~x_5 (- 1)))) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~c~0] 4#L6-2true [2020-07-01 12:03:55,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:03:55,627 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2020-07-01 12:03:55,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:03:55,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857746902] [2020-07-01 12:03:55,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:03:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:03:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:03:55,711 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:03:55,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:03:55,713 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-07-01 12:03:55,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:03:55,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247513340] [2020-07-01 12:03:55,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:03:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:03:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:03:55,729 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:03:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:03:55,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1639, now seen corresponding path program 1 times [2020-07-01 12:03:55,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:03:55,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917899075] [2020-07-01 12:03:55,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:03:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:03:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:03:55,746 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:03:55,788 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:03:55,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:03:55,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:03:55,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:03:55,789 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:03:55,789 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:03:55,789 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:03:55,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:03:55,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:03:55,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:03:55,790 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:03:55,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:03:55,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:03:55,877 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:03:55,878 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:03:55,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:03:55,884 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:03:55,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:03:55,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:03:56,157 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:03:56,160 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:03:56,160 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:03:56,160 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:03:56,160 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:03:56,160 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:03:56,160 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:03:56,161 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:03:56,161 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:03:56,161 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:03:56,161 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:03:56,161 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:03:56,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:03:56,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:03:56,213 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:03:56,219 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:03:56,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:03:56,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:03:56,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:03:56,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:03:56,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:03:56,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:03:56,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:03:56,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:03:56,234 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:03:56,243 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:03:56,243 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:03:56,249 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:03:56,250 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:03:56,251 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:03:56,251 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~x) = -1*ULTIMATE.start_test_fun_~y + 1*ULTIMATE.start_test_fun_~x Supporting invariants [] [2020-07-01 12:03:56,285 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:03:56,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:03:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:03:56,331 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:03:56,333 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:03:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:03:56,348 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:03:56,348 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:03:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:03:56,361 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:03:56,366 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 1 loop predicates [2020-07-01 12:03:56,368 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 12:03:56,386 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 3 states and 3 transitions. Complement of second has 2 states. [2020-07-01 12:03:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:03:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:03:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-07-01 12:03:56,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 12:03:56,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:03:56,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:03:56,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:03:56,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:03:56,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:03:56,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-07-01 12:03:56,398 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:03:56,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-07-01 12:03:56,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:03:56,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:03:56,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:03:56,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:03:56,403 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:03:56,403 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:03:56,403 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:03:56,403 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:03:56,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:03:56,404 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:03:56,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:03:56,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:03:56 BasicIcfg [2020-07-01 12:03:56,409 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:03:56,412 INFO L168 Benchmark]: Toolchain (without parser) took 1663.16 ms. Allocated memory was 514.9 MB in the beginning and 547.9 MB in the end (delta: 33.0 MB). Free memory was 438.8 MB in the beginning and 432.3 MB in the end (delta: 6.5 MB). Peak memory consumption was 39.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,413 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:03:56,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.58 ms. Allocated memory was 514.9 MB in the beginning and 547.9 MB in the end (delta: 33.0 MB). Free memory was 438.3 MB in the beginning and 515.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.66 ms. Allocated memory is still 547.9 MB. Free memory was 515.9 MB in the beginning and 514.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,415 INFO L168 Benchmark]: Boogie Preprocessor took 19.62 ms. Allocated memory is still 547.9 MB. Free memory was 514.3 MB in the beginning and 513.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,415 INFO L168 Benchmark]: RCFGBuilder took 233.18 ms. Allocated memory is still 547.9 MB. Free memory was 513.2 MB in the beginning and 501.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,416 INFO L168 Benchmark]: BlockEncodingV2 took 69.10 ms. Allocated memory is still 547.9 MB. Free memory was 501.3 MB in the beginning and 496.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,417 INFO L168 Benchmark]: TraceAbstraction took 144.62 ms. Allocated memory is still 547.9 MB. Free memory was 495.9 MB in the beginning and 487.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,417 INFO L168 Benchmark]: BuchiAutomizer took 862.17 ms. Allocated memory is still 547.9 MB. Free memory was 487.0 MB in the beginning and 432.3 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:03:56,421 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 8 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 292.58 ms. Allocated memory was 514.9 MB in the beginning and 547.9 MB in the end (delta: 33.0 MB). Free memory was 438.3 MB in the beginning and 515.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.66 ms. Allocated memory is still 547.9 MB. Free memory was 515.9 MB in the beginning and 514.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.62 ms. Allocated memory is still 547.9 MB. Free memory was 514.3 MB in the beginning and 513.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 233.18 ms. Allocated memory is still 547.9 MB. Free memory was 513.2 MB in the beginning and 501.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.10 ms. Allocated memory is still 547.9 MB. Free memory was 501.3 MB in the beginning and 496.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.62 ms. Allocated memory is still 547.9 MB. Free memory was 495.9 MB in the beginning and 487.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 862.17 ms. Allocated memory is still 547.9 MB. Free memory was 487.0 MB in the beginning and 432.3 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 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. - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function -1 * y + x and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:03:51.376 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_7sUh83/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:03:56.854 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check