/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:24:54,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:24:54,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:24:54,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:24:54,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:24:54,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:24:54,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:24:54,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:24:54,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:24:54,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:24:54,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:24:54,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:24:54,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:24:54,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:24:54,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:24:54,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:24:54,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:24:54,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:24:54,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:24:54,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:24:54,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:24:54,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:24:54,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:24:54,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:24:54,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:24:54,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:24:54,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:24:54,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:24:54,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:24:54,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:24:54,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:24:54,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:24:54,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:24:54,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:24:54,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:24:54,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:24:54,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:24:54,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:24:54,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:24:54,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:24:54,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:24:54,104 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:24:54,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:24:54,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:24:54,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:24:54,120 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:24:54,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:24:54,120 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:24:54,120 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:24:54,120 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:24:54,121 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:24:54,121 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:24:54,121 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:24:54,121 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:24:54,121 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:24:54,121 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:24:54,122 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:24:54,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:24:54,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:24:54,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:24:54,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:24:54,123 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:24:54,123 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:24:54,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:24:54,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:24:54,123 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:24:54,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:24:54,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:24:54,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:24:54,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:24:54,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:24:54,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:24:54,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:24:54,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:24:54,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:24:54,312 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:24:54,313 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:24:54,373 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_0MB_zm/tmp/b7c048d0092b421084c64ca9b26c6484/FLAGe1c9b1773 [2020-07-01 11:24:54,708 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:24:54,709 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:24:54,715 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_0MB_zm/tmp/b7c048d0092b421084c64ca9b26c6484/FLAGe1c9b1773 [2020-07-01 11:24:55,117 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_0MB_zm/tmp/b7c048d0092b421084c64ca9b26c6484 [2020-07-01 11:24:55,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:24:55,130 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:24:55,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:24:55,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:24:55,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:24:55,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eecf2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:24:55,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:24:55,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:24:55,379 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:24:55,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:24:55,408 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:24:55,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55 WrapperNode [2020-07-01 11:24:55,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:24:55,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:24:55,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:24:55,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:24:55,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:24:55,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:24:55,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:24:55,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:24:55,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:24:55,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:24:55,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:24:55,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:24:55,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (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 11:24:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:24:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:24:55,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:24:55,675 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:24:55,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55 BoogieIcfgContainer [2020-07-01 11:24:55,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:24:55,679 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:24:55,679 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:24:55,681 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:24:55,682 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,694 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:24:55,696 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:24:55,696 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:24:55,697 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:24:55,697 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:24:55,699 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:24:55,700 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:24:55,700 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:24:55,714 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:24:55,728 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:24:55,732 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:24:55,733 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:24:55,746 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:24:55,748 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:24:55,750 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:24:55,750 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:24:55,750 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:24:55,750 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:24:55,751 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 11:24:55,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:24:55 BasicIcfg [2020-07-01 11:24:55,751 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:24:55,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:24:55,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:24:55,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:24:55,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:24:55" (1/4) ... [2020-07-01 11:24:55,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79969f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (2/4) ... [2020-07-01 11:24:55,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79969f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55" (3/4) ... [2020-07-01 11:24:55,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79969f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:24:55" (4/4) ... [2020-07-01 11:24:55,759 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:24:55,771 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:24:55,778 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:24:55,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:24:55,820 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:24:55,820 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:24:55,820 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:24:55,821 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:24:55,821 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:24:55,821 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:24:55,821 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:24:55,821 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:24:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:24:55,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:24:55,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:24:55,895 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:24:55,896 INFO L268 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-07-01 11:24:55,896 INFO L271 CegarLoopResult]: At program point L10-2(lines 9 13) the Hoare annotation is: true [2020-07-01 11:24:55,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:24:55 BasicIcfg [2020-07-01 11:24:55,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:24:55,905 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:24:55,905 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:24:55,909 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:24:55,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:24:55" (1/5) ... [2020-07-01 11:24:55,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d905de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:55" (2/5) ... [2020-07-01 11:24:55,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d905de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55" (3/5) ... [2020-07-01 11:24:55,912 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d905de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:24:55" (4/5) ... [2020-07-01 11:24:55,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d905de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:24:55" (5/5) ... [2020-07-01 11:24:55,915 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:24:55,943 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:24:55,943 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:24:55,944 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:24:55,944 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:24:55,944 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:24:55,944 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:24:55,944 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:24:55,945 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:24:55,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:24:55,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:24:55,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:24:55,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:24:55,973 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:24:55,974 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:24:55,974 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:24:55,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:24:55,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:24:55,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:24:55,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:24:55,975 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:24:55,975 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:24:55,980 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 5#L10-2true [2020-07-01 11:24:55,981 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true [31] L10-2-->L10: Formula: (< 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 3#L10true [35] L10-->L10-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 (- 1))) (> 5 v_ULTIMATE.start_main_~i~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L10-2true [2020-07-01 11:24:55,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:55,987 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-07-01 11:24:55,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:55,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611394007] [2020-07-01 11:24:55,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,068 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:56,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:56,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 1 times [2020-07-01 11:24:56,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:56,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571295762] [2020-07-01 11:24:56,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,083 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:56,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:56,085 INFO L82 PathProgramCache]: Analyzing trace with hash 56734, now seen corresponding path program 1 times [2020-07-01 11:24:56,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:56,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087274085] [2020-07-01 11:24:56,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,095 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:56,144 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:24:56,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:24:56,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:24:56,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:24:56,146 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:24:56,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:24:56,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:24:56,147 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:24:56,147 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:24:56,147 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:24:56,147 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:24:56,166 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 11:24:56,182 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 11:24:56,186 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 11:24:56,261 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:24:56,262 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 11:24:56,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:24:56,269 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 11:24:56,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:24:56,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:24:56,316 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:24:56,346 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:24:56,346 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:24:56,346 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:24:56,347 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:24:56,347 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:24:56,347 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:24:56,347 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:24:56,347 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:24:56,347 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:24:56,347 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:24:56,347 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:24:56,349 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 11:24:56,363 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 11:24:56,367 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 11:24:56,429 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:24:56,435 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 11:24:56,440 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 11:24:56,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:24:56,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:24:56,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:24:56,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:24:56,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:24:56,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:24:56,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:24:56,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:24:56,460 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:24:56,460 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/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 11:24:56,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:24:56,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:24:56,468 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:24:56,468 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 11:24:56,502 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:24:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:24:56,536 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:24:56,538 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:24:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:24:56,547 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:24:56,547 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:24:56,561 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 11:24:56,585 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:24:56,590 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 2 loop predicates [2020-07-01 11:24:56,591 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:24:56,648 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 9 states and 14 transitions. Complement of second has 5 states. [2020-07-01 11:24:56,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 11:24:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:24:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-07-01 11:24:56,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:24:56,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:24:56,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:24:56,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:24:56,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:24:56,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:24:56,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 14 transitions. [2020-07-01 11:24:56,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:24:56,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 14 transitions. [2020-07-01 11:24:56,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:24:56,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:24:56,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 14 transitions. [2020-07-01 11:24:56,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:24:56,690 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2020-07-01 11:24:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 14 transitions. [2020-07-01 11:24:56,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2020-07-01 11:24:56,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:24:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2020-07-01 11:24:56,720 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-07-01 11:24:56,720 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 11 transitions. [2020-07-01 11:24:56,720 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:24:56,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 11 transitions. [2020-07-01 11:24:56,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:24:56,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:24:56,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:24:56,721 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:24:56,721 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:24:56,721 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 56#L10-2 [31] L10-2-->L10: Formula: (< 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 50#L10 [2020-07-01 11:24:56,722 INFO L796 eck$LassoCheckResult]: Loop: 50#L10 [26] L10-->L10-2: Formula: (= 5 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 51#L10-2 [31] L10-2-->L10: Formula: (< 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 50#L10 [2020-07-01 11:24:56,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:56,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1829, now seen corresponding path program 1 times [2020-07-01 11:24:56,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:56,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212988645] [2020-07-01 11:24:56,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,729 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:56,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:56,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 1 times [2020-07-01 11:24:56,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:56,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843301940] [2020-07-01 11:24:56,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,738 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:56,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:56,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1758506, now seen corresponding path program 1 times [2020-07-01 11:24:56,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:56,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203438195] [2020-07-01 11:24:56,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:56,745 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:56,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:24:56 BasicIcfg [2020-07-01 11:24:56,785 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:24:56,788 INFO L168 Benchmark]: Toolchain (without parser) took 1656.82 ms. Allocated memory was 514.9 MB in the beginning and 537.4 MB in the end (delta: 22.5 MB). Free memory was 439.7 MB in the beginning and 402.3 MB in the end (delta: 37.4 MB). Peak memory consumption was 59.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,788 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 459.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:24:56,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.45 ms. Allocated memory was 514.9 MB in the beginning and 537.4 MB in the end (delta: 22.5 MB). Free memory was 439.0 MB in the beginning and 505.5 MB in the end (delta: -66.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.07 ms. Allocated memory is still 537.4 MB. Free memory was 505.5 MB in the beginning and 503.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,790 INFO L168 Benchmark]: Boogie Preprocessor took 19.44 ms. Allocated memory is still 537.4 MB. Free memory was 503.5 MB in the beginning and 502.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,791 INFO L168 Benchmark]: RCFGBuilder took 214.57 ms. Allocated memory is still 537.4 MB. Free memory was 502.2 MB in the beginning and 491.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,791 INFO L168 Benchmark]: BlockEncodingV2 took 72.65 ms. Allocated memory is still 537.4 MB. Free memory was 491.0 MB in the beginning and 485.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,792 INFO L168 Benchmark]: TraceAbstraction took 152.14 ms. Allocated memory is still 537.4 MB. Free memory was 485.0 MB in the beginning and 476.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,792 INFO L168 Benchmark]: BuchiAutomizer took 879.82 ms. Allocated memory is still 537.4 MB. Free memory was 476.7 MB in the beginning and 402.3 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,797 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 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 459.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 278.45 ms. Allocated memory was 514.9 MB in the beginning and 537.4 MB in the end (delta: 22.5 MB). Free memory was 439.0 MB in the beginning and 505.5 MB in the end (delta: -66.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.07 ms. Allocated memory is still 537.4 MB. Free memory was 505.5 MB in the beginning and 503.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.44 ms. Allocated memory is still 537.4 MB. Free memory was 503.5 MB in the beginning and 502.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 214.57 ms. Allocated memory is still 537.4 MB. Free memory was 502.2 MB in the beginning and 491.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.65 ms. Allocated memory is still 537.4 MB. Free memory was 491.0 MB in the beginning and 485.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.14 ms. Allocated memory is still 537.4 MB. Free memory was 485.0 MB in the beginning and 476.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 879.82 ms. Allocated memory is still 537.4 MB. Free memory was 476.7 MB in the beginning and 402.3 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 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: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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) and one nonterminating remainder module.One nondeterministic module has affine ranking function i and consists of 4 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 12 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@237e5390=0, \result=0, i=5} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 0 Loop: [L10] COND FALSE !(i != 5) [L9] COND TRUE i > 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:24:51.894 ----------------------------------------------- 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_0MB_zm/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:24:57.440 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check