/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 11:28:35,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:28:35,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:28:35,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:28:35,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:28:35,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:28:35,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:28:35,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:28:35,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:28:35,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:28:35,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:28:35,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:28:35,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:28:35,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:28:35,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:28:35,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:28:35,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:28:35,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:28:35,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:28:35,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:28:35,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:28:35,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:28:35,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:28:35,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:28:35,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:28:35,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:28:35,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:28:35,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:28:35,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:28:35,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:28:35,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:28:35,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:28:35,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:28:35,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:28:35,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:28:35,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:28:35,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:28:35,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:28:35,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:28:35,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:28:35,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:28:35,735 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:28:35,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:28:35,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:28:35,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:28:35,751 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:28:35,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:28:35,751 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:28:35,751 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:28:35,751 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:28:35,752 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:28:35,752 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:28:35,752 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:28:35,752 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:28:35,752 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:28:35,753 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:28:35,753 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:35,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:28:35,753 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:28:35,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:28:35,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:28:35,754 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:28:35,754 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:28:35,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:28:35,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:28:35,754 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:28:35,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:28:35,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:28:35,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:28:35,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:28:35,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:28:35,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:28:35,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:28:35,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:28:35,940 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:28:35,941 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:28:35,941 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:28:36,013 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_JkSOKR/tmp/2bb6783a19d04b8abb8064e29572eaf9/FLAGd4deef132 [2020-07-01 11:28:36,336 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:28:36,337 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:28:36,343 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_JkSOKR/tmp/2bb6783a19d04b8abb8064e29572eaf9/FLAGd4deef132 [2020-07-01 11:28:36,756 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_JkSOKR/tmp/2bb6783a19d04b8abb8064e29572eaf9 [2020-07-01 11:28:36,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:28:36,768 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:28:36,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:28:36,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:28:36,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:28:36,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:28:36" (1/1) ... [2020-07-01 11:28:36,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa9d41f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:36, skipping insertion in model container [2020-07-01 11:28:36,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:28:36" (1/1) ... [2020-07-01 11:28:36,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:28:36,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:28:37,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:28:37,034 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:28:37,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:28:37,066 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:28:37,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37 WrapperNode [2020-07-01 11:28:37,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:28:37,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:28:37,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:28:37,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:28:37,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:28:37,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:28:37,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:28:37,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:28:37,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:28:37,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:28:37,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:28:37,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:28:37,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (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 11:28:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:28:37,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:28:37,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:28:37,359 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:28:37,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37 BoogieIcfgContainer [2020-07-01 11:28:37,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:28:37,363 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:28:37,363 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:28:37,365 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:28:37,366 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,379 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2020-07-01 11:28:37,380 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:28:37,381 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:28:37,381 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:28:37,381 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:28:37,383 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:28:37,384 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:28:37,384 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:28:37,399 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:28:37,414 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:28:37,418 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:28:37,420 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:28:37,429 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:28:37,431 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 11:28:37,432 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:28:37,432 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:28:37,433 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:28:37,433 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:28:37,433 INFO L313 BlockEncoder]: Encoded RCFG 7 locations, 11 edges [2020-07-01 11:28:37,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:28:37 BasicIcfg [2020-07-01 11:28:37,434 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:28:37,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:28:37,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:28:37,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:28:37,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:28:36" (1/4) ... [2020-07-01 11:28:37,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118e99c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (2/4) ... [2020-07-01 11:28:37,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118e99c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37" (3/4) ... [2020-07-01 11:28:37,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118e99c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:28:37" (4/4) ... [2020-07-01 11:28:37,444 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:28:37,455 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:28:37,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:28:37,475 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:28:37,498 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:28:37,498 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:28:37,499 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:28:37,499 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:28:37,499 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:28:37,499 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:28:37,499 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:28:37,499 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:28:37,513 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-01 11:28:37,519 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:28:37,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-07-01 11:28:37,576 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-07-01 11:28:37,576 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:28:37,576 INFO L268 CegarLoopResult]: For program point L30-2(lines 30 34) no Hoare annotation was computed. [2020-07-01 11:28:37,577 INFO L268 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-07-01 11:28:37,577 INFO L268 CegarLoopResult]: For program point L22(lines 22 36) no Hoare annotation was computed. [2020-07-01 11:28:37,577 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2020-07-01 11:28:37,577 INFO L271 CegarLoopResult]: At program point L22-2(lines 21 37) the Hoare annotation is: true [2020-07-01 11:28:37,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:28:37 BasicIcfg [2020-07-01 11:28:37,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:28:37,587 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:28:37,587 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:28:37,590 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:28:37,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:28:36" (1/5) ... [2020-07-01 11:28:37,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28a5d6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (2/5) ... [2020-07-01 11:28:37,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28a5d6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37" (3/5) ... [2020-07-01 11:28:37,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28a5d6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:28:37" (4/5) ... [2020-07-01 11:28:37,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28a5d6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:28:37" (5/5) ... [2020-07-01 11:28:37,595 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:28:37,623 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:28:37,623 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:28:37,623 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:28:37,623 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:28:37,623 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:28:37,624 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:28:37,624 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:28:37,624 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:28:37,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 11:28:37,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 11:28:37,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:37,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:37,650 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:28:37,651 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:28:37,651 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:28:37,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 11:28:37,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 11:28:37,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:37,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:37,652 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:28:37,652 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:28:37,658 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 9#L22-2true [2020-07-01 11:28:37,658 INFO L796 eck$LassoCheckResult]: Loop: 9#L22-2true [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 5#L22true [56] L22-->L23: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 7#L23true [52] L23-->L23-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3#L23-2true [36] L23-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 9#L22-2true [2020-07-01 11:28:37,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:37,667 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-07-01 11:28:37,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:37,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819880210] [2020-07-01 11:28:37,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:37,740 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:37,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:37,742 INFO L82 PathProgramCache]: Analyzing trace with hash 2438744, now seen corresponding path program 1 times [2020-07-01 11:28:37,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:37,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961862482] [2020-07-01 11:28:37,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:37,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:37,765 INFO L82 PathProgramCache]: Analyzing trace with hash 64314651, now seen corresponding path program 1 times [2020-07-01 11:28:37,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:37,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604445937] [2020-07-01 11:28:37,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:37,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:37,855 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:37,856 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:37,856 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:37,856 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:37,856 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:28:37,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:37,857 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:37,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:37,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:28:37,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:37,857 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:37,876 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 11:28:37,896 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 11:28:37,959 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:37,960 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 11:28:37,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:37,967 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 11:28:38,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:28:38,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,052 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:28:38,054 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:38,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:38,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:38,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:38,055 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:28:38,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:38,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:38,055 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:38,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:28:38,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:38,056 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:38,057 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 11:28:38,071 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 11:28:38,127 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:38,133 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 11:28:38,139 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 11:28:38,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:28:38,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:28:38,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:28:38,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:28:38,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:28:38,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:28:38,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:28:38,153 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:28:38,162 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:28:38,163 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:28:38,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:28:38,169 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:28:38,171 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:28:38,171 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:28:38,205 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:28:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:38,236 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:28:38,237 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:38,251 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:28:38,251 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:38,297 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 11:28:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:38,359 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:28:38,359 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:38,371 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:28:38,376 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 4 loop predicates [2020-07-01 11:28:38,377 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states. Second operand 4 states. [2020-07-01 11:28:38,476 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states.. Second operand 4 states. Result 26 states and 44 transitions. Complement of second has 10 states. [2020-07-01 11:28:38,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 11:28:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:28:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-07-01 11:28:38,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:28:38,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:38,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 5 letters. Loop has 4 letters. [2020-07-01 11:28:38,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:38,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 1 letters. Loop has 8 letters. [2020-07-01 11:28:38,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:38,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 44 transitions. [2020-07-01 11:28:38,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 11:28:38,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 17 states and 26 transitions. [2020-07-01 11:28:38,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-07-01 11:28:38,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-07-01 11:28:38,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2020-07-01 11:28:38,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:28:38,500 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2020-07-01 11:28:38,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2020-07-01 11:28:38,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2020-07-01 11:28:38,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-01 11:28:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 22 transitions. [2020-07-01 11:28:38,529 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 22 transitions. [2020-07-01 11:28:38,530 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 22 transitions. [2020-07-01 11:28:38,530 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:28:38,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 22 transitions. [2020-07-01 11:28:38,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 11:28:38,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:38,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:38,531 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:28:38,531 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:28:38,532 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 100#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 101#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 102#L30 [2020-07-01 11:28:38,532 INFO L796 eck$LassoCheckResult]: Loop: 102#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 105#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 95#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 107#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 102#L30 [2020-07-01 11:28:38,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:38,533 INFO L82 PathProgramCache]: Analyzing trace with hash 66906, now seen corresponding path program 1 times [2020-07-01 11:28:38,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:38,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442570774] [2020-07-01 11:28:38,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,541 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:38,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:38,542 INFO L82 PathProgramCache]: Analyzing trace with hash 2542442, now seen corresponding path program 1 times [2020-07-01 11:28:38,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:38,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268370880] [2020-07-01 11:28:38,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,554 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:38,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1661172803, now seen corresponding path program 1 times [2020-07-01 11:28:38,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:38,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756152767] [2020-07-01 11:28:38,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,568 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:38,599 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:38,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:38,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:38,600 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:38,600 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:28:38,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:38,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:38,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:28:38,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:38,600 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:38,602 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 11:28:38,637 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 11:28:38,703 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:38,704 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,710 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:28:38,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,927 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:28:38,930 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:38,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:38,930 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:38,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:38,931 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:28:38,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:38,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:38,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:38,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:28:38,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:38,931 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:38,933 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 11:28:38,946 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 11:28:39,001 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:39,001 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:39,007 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 11:28:39,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:28:39,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:28:39,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:28:39,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:28:39,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:28:39,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:28:39,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:28:39,016 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:28:39,028 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:28:39,029 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:39,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:28:39,035 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:28:39,036 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:28:39,036 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:28:39,069 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:28:39,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:39,092 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:28:39,092 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:39,098 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:28:39,098 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:39,122 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 11:28:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:39,141 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:28:39,142 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:39,145 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:28:39,145 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:28:39,145 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 22 transitions. cyclomatic complexity: 10 Second operand 4 states. [2020-07-01 11:28:39,237 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 22 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 32 states and 53 transitions. Complement of second has 17 states. [2020-07-01 11:28:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-07-01 11:28:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:28:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2020-07-01 11:28:39,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:28:39,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:39,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 7 letters. Loop has 4 letters. [2020-07-01 11:28:39,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:39,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 3 letters. Loop has 8 letters. [2020-07-01 11:28:39,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:39,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 53 transitions. [2020-07-01 11:28:39,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2020-07-01 11:28:39,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 24 states and 38 transitions. [2020-07-01 11:28:39,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-07-01 11:28:39,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-07-01 11:28:39,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 38 transitions. [2020-07-01 11:28:39,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:28:39,248 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 38 transitions. [2020-07-01 11:28:39,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 38 transitions. [2020-07-01 11:28:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-07-01 11:28:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-01 11:28:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 35 transitions. [2020-07-01 11:28:39,252 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 35 transitions. [2020-07-01 11:28:39,252 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 35 transitions. [2020-07-01 11:28:39,252 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:28:39,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 35 transitions. [2020-07-01 11:28:39,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2020-07-01 11:28:39,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:39,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:39,254 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:28:39,254 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2020-07-01 11:28:39,255 INFO L794 eck$LassoCheckResult]: Stem: 216#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 217#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 227#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 225#L30 [2020-07-01 11:28:39,255 INFO L796 eck$LassoCheckResult]: Loop: 225#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 222#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 223#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 228#L22 [56] L22-->L23: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 219#L23 [52] L23-->L23-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 211#L23-2 [36] L23-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 212#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 232#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 225#L30 [2020-07-01 11:28:39,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:39,255 INFO L82 PathProgramCache]: Analyzing trace with hash 66906, now seen corresponding path program 2 times [2020-07-01 11:28:39,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:39,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574090734] [2020-07-01 11:28:39,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:39,263 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:39,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:39,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1331247487, now seen corresponding path program 1 times [2020-07-01 11:28:39,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:39,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362285031] [2020-07-01 11:28:39,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:39,279 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:39,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:39,280 INFO L82 PathProgramCache]: Analyzing trace with hash 27091674, now seen corresponding path program 1 times [2020-07-01 11:28:39,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:39,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877629212] [2020-07-01 11:28:39,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:39,299 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:39,364 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:39,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:39,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:39,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:39,365 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:28:39,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:39,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:39,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:39,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:28:39,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:39,366 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:39,367 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 11:28:39,370 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 11:28:39,423 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:39,423 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:39,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:39,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:39,434 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:39,434 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:39,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:39,470 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:39,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:28:39,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:39,688 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:28:39,691 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:39,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:39,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:39,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:39,691 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:28:39,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:39,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:39,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:39,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:28:39,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:39,692 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:39,693 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 11:28:39,701 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 11:28:39,769 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:39,770 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:39,775 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 11:28:39,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:28:39,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:28:39,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:28:39,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:28:39,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:28:39,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:28:39,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:28:39,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:39,828 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 11:28:39,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:28:39,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:28:39,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:28:39,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:28:39,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:28:39,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:28:39,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:28:39,839 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:28:39,843 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:28:39,843 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:39,848 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:28:39,899 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:28:39,899 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:28:39,899 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:28:39,931 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:28:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:39,951 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:28:39,952 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:39,958 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:28:39,959 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:28:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,013 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,031 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:40,036 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:28:40,037 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:40,062 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:28:40,063 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:40,067 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 11:28:40,067 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-07-01 11:28:40,067 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 22 states and 35 transitions. cyclomatic complexity: 15 Second operand 5 states. [2020-07-01 11:28:40,307 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 22 states and 35 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 61 states and 95 transitions. Complement of second has 28 states. [2020-07-01 11:28:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 7 non-accepting loop states 3 accepting loop states [2020-07-01 11:28:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:28:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 34 transitions. [2020-07-01 11:28:40,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 34 transitions. Stem has 3 letters. Loop has 8 letters. [2020-07-01 11:28:40,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:40,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 34 transitions. Stem has 11 letters. Loop has 8 letters. [2020-07-01 11:28:40,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:40,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 34 transitions. Stem has 3 letters. Loop has 16 letters. [2020-07-01 11:28:40,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:40,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 95 transitions. [2020-07-01 11:28:40,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2020-07-01 11:28:40,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 37 states and 57 transitions. [2020-07-01 11:28:40,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:28:40,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 11:28:40,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 57 transitions. [2020-07-01 11:28:40,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:28:40,321 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-07-01 11:28:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 57 transitions. [2020-07-01 11:28:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2020-07-01 11:28:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-01 11:28:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 49 transitions. [2020-07-01 11:28:40,325 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 49 transitions. [2020-07-01 11:28:40,325 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 49 transitions. [2020-07-01 11:28:40,325 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:28:40,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 49 transitions. [2020-07-01 11:28:40,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-07-01 11:28:40,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:40,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:40,327 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2020-07-01 11:28:40,327 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 1, 1, 1] [2020-07-01 11:28:40,328 INFO L794 eck$LassoCheckResult]: Stem: 441#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~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_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 442#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 456#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 451#L30 [45] L30-->L30-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 447#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 448#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 466#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 446#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 464#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 458#L22-2 [2020-07-01 11:28:40,328 INFO L796 eck$LassoCheckResult]: Loop: 458#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 443#L22 [56] L22-->L23: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 444#L23 [52] L23-->L23-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 439#L23-2 [36] L23-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 440#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 469#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 452#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 447#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 448#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 466#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 446#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 464#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 458#L22-2 [2020-07-01 11:28:40,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:40,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1569801954, now seen corresponding path program 1 times [2020-07-01 11:28:40,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:40,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417246466] [2020-07-01 11:28:40,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,343 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:40,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:40,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1073913814, now seen corresponding path program 2 times [2020-07-01 11:28:40,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:40,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060345244] [2020-07-01 11:28:40,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,361 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:40,361 INFO L82 PathProgramCache]: Analyzing trace with hash -503949881, now seen corresponding path program 1 times [2020-07-01 11:28:40,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:40,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366754006] [2020-07-01 11:28:40,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,387 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:40,460 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:40,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:40,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:40,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:40,461 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:28:40,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:40,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:40,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:40,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:28:40,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:40,461 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:40,463 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 11:28:40,475 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 11:28:40,504 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:40,504 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:40,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:40,508 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:40,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:28:40,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:40,657 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:28:40,659 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:40,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:40,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:40,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:40,660 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:28:40,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:40,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:40,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:40,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:28:40,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:40,661 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:40,662 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 11:28:40,674 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 11:28:40,702 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:40,702 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:40,706 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 11:28:40,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:28:40,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:28:40,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:28:40,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:28:40,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:28:40,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:28:40,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:28:40,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:28:40,719 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:28:40,719 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:40,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:28:40,722 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:28:40,722 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:28:40,722 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:28:40,758 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:28:40,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:40,775 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:28:40,775 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:40,783 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 11:28:40,784 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:28:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,859 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,865 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:40,871 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:40,877 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 11:28:40,878 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:40,926 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 11:28:40,927 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:40,938 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 11:28:40,939 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:40,943 INFO L98 LoopCannibalizer]: 6 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 11:28:40,943 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 9 loop predicates [2020-07-01 11:28:40,943 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 31 states and 49 transitions. cyclomatic complexity: 20 Second operand 7 states. [2020-07-01 11:28:41,280 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 31 states and 49 transitions. cyclomatic complexity: 20. Second operand 7 states. Result 110 states and 174 transitions. Complement of second has 24 states. [2020-07-01 11:28:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 10 non-accepting loop states 3 accepting loop states [2020-07-01 11:28:41,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:28:41,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 42 transitions. [2020-07-01 11:28:41,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 42 transitions. Stem has 9 letters. Loop has 12 letters. [2020-07-01 11:28:41,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:41,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 42 transitions. Stem has 21 letters. Loop has 12 letters. [2020-07-01 11:28:41,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:41,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 42 transitions. Stem has 9 letters. Loop has 24 letters. [2020-07-01 11:28:41,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:41,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 174 transitions. [2020-07-01 11:28:41,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2020-07-01 11:28:41,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 78 states and 122 transitions. [2020-07-01 11:28:41,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 11:28:41,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 11:28:41,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 122 transitions. [2020-07-01 11:28:41,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:28:41,291 INFO L688 BuchiCegarLoop]: Abstraction has 78 states and 122 transitions. [2020-07-01 11:28:41,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 122 transitions. [2020-07-01 11:28:41,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 43. [2020-07-01 11:28:41,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-01 11:28:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 69 transitions. [2020-07-01 11:28:41,296 INFO L711 BuchiCegarLoop]: Abstraction has 43 states and 69 transitions. [2020-07-01 11:28:41,296 INFO L591 BuchiCegarLoop]: Abstraction has 43 states and 69 transitions. [2020-07-01 11:28:41,296 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:28:41,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 69 transitions. [2020-07-01 11:28:41,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2020-07-01 11:28:41,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:41,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:41,298 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2020-07-01 11:28:41,298 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [4, 2, 2, 2, 2, 2, 1, 1] [2020-07-01 11:28:41,299 INFO L794 eck$LassoCheckResult]: Stem: 820#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~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_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 821#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 822#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 823#L30 [45] L30-->L30-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 830#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 846#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 847#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 841#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 835#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 832#L22-2 [2020-07-01 11:28:41,299 INFO L796 eck$LassoCheckResult]: Loop: 832#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 833#L22 [56] L22-->L23: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 853#L23 [52] L23-->L23-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_9) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 818#L23-2 [36] L23-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 819#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 860#L22 [56] L22-->L23: Formula: (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 852#L23 [41] L23-->L23-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~x~0_6 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 829#L23-2 [36] L23-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 850#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 849#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 848#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 830#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 846#L22-2 [49] L22-2-->L22: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 847#L22 [39] L22-->L30: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) InVars {ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2] 841#L30 [53] L30-->L30-2: Formula: (and (>= v_ULTIMATE.start_main_~x~0_12 v_ULTIMATE.start_main_~y~0_11) (= v_ULTIMATE.start_main_~x~0_11 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 835#L30-2 [40] L30-2-->L22-2: Formula: (= v_ULTIMATE.start_main_~y~0_12 |v_ULTIMATE.start_main_#t~nondet4_3|) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~y~0] 832#L22-2 [2020-07-01 11:28:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:41,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1569801954, now seen corresponding path program 2 times [2020-07-01 11:28:41,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:41,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164803902] [2020-07-01 11:28:41,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,323 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:41,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:41,323 INFO L82 PathProgramCache]: Analyzing trace with hash -480186452, now seen corresponding path program 1 times [2020-07-01 11:28:41,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:41,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337790846] [2020-07-01 11:28:41,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,351 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:41,352 INFO L82 PathProgramCache]: Analyzing trace with hash -830746935, now seen corresponding path program 1 times [2020-07-01 11:28:41,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:41,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728042932] [2020-07-01 11:28:41,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,378 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:41,482 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:41,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:41,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:41,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:41,483 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:28:41,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:41,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:41,483 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:41,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:28:41,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:41,484 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:41,485 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 11:28:41,488 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 11:28:41,528 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:41,528 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:41,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:41,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:41,536 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:41,536 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:41,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:41,568 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:41,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:28:41,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:41,685 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:28:41,687 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:41,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:41,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:41,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:41,688 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:28:41,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:41,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:41,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:41,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:28:41,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:41,688 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:41,689 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 11:28:41,693 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 11:28:41,729 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:41,729 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:41,733 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 11:28:41,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:28:41,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:28:41,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:28:41,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:28:41,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:28:41,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:28:41,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:28:41,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:41,770 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 11:28:41,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:28:41,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:28:41,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:28:41,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:28:41,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:28:41,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:28:41,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:28:41,779 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:28:41,784 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:28:41,785 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:28:41,788 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:28:41,788 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:28:41,788 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:28:41,788 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:28:41,818 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:28:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:41,835 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:28:41,836 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:41,846 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:28:41,847 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:28:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,931 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,938 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,945 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,953 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,960 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:41,966 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:28:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:41,973 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:28:41,975 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:42,045 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:28:42,046 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:42,062 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:28:42,063 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:42,068 INFO L98 LoopCannibalizer]: 7 predicates before loop cannibalization 11 predicates after loop cannibalization [2020-07-01 11:28:42,068 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 11 loop predicates [2020-07-01 11:28:42,069 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 43 states and 69 transitions. cyclomatic complexity: 28 Second operand 8 states. [2020-07-01 11:28:42,659 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 43 states and 69 transitions. cyclomatic complexity: 28. Second operand 8 states. Result 152 states and 229 transitions. Complement of second has 36 states. [2020-07-01 11:28:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 20 states 1 stem states 16 non-accepting loop states 3 accepting loop states [2020-07-01 11:28:42,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:28:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 60 transitions. [2020-07-01 11:28:42,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 60 transitions. Stem has 9 letters. Loop has 16 letters. [2020-07-01 11:28:42,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:42,661 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 11:28:42,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:42,678 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:28:42,679 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:28:42,687 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:28:42,687 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:28:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:28:42,743 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2020-07-01 11:28:42,743 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 43 states and 69 transitions. cyclomatic complexity: 28 Second operand 8 states. [2020-07-01 11:28:42,995 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 43 states and 69 transitions. cyclomatic complexity: 28. Second operand 8 states. Result 233 states and 361 transitions. Complement of second has 51 states. [2020-07-01 11:28:42,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2020-07-01 11:28:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:28:42,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 56 transitions. [2020-07-01 11:28:42,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 56 transitions. Stem has 9 letters. Loop has 16 letters. [2020-07-01 11:28:42,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:42,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 56 transitions. Stem has 25 letters. Loop has 16 letters. [2020-07-01 11:28:42,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:42,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 56 transitions. Stem has 9 letters. Loop has 32 letters. [2020-07-01 11:28:42,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:28:43,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 361 transitions. [2020-07-01 11:28:43,005 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:28:43,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 0 states and 0 transitions. [2020-07-01 11:28:43,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:28:43,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:28:43,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:28:43,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:28:43,005 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:28:43,005 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:28:43,006 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:28:43,006 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:28:43,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:28:43,006 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:28:43,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:28:43,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:28:43 BasicIcfg [2020-07-01 11:28:43,012 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:28:43,015 INFO L168 Benchmark]: Toolchain (without parser) took 6245.88 ms. Allocated memory was 514.9 MB in the beginning and 640.7 MB in the end (delta: 125.8 MB). Free memory was 438.6 MB in the beginning and 513.9 MB in the end (delta: -75.2 MB). Peak memory consumption was 50.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,015 INFO L168 Benchmark]: CDTParser took 0.16 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 11:28:43,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.62 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 438.6 MB in the beginning and 533.7 MB in the end (delta: -95.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.90 ms. Allocated memory is still 566.2 MB. Free memory was 533.7 MB in the beginning and 532.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,017 INFO L168 Benchmark]: Boogie Preprocessor took 20.12 ms. Allocated memory is still 566.2 MB. Free memory was 532.3 MB in the beginning and 531.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,017 INFO L168 Benchmark]: RCFGBuilder took 239.93 ms. Allocated memory is still 566.2 MB. Free memory was 531.0 MB in the beginning and 518.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,018 INFO L168 Benchmark]: BlockEncodingV2 took 70.79 ms. Allocated memory is still 566.2 MB. Free memory was 518.0 MB in the beginning and 513.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,019 INFO L168 Benchmark]: TraceAbstraction took 150.13 ms. Allocated memory is still 566.2 MB. Free memory was 512.6 MB in the beginning and 504.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,019 INFO L168 Benchmark]: BuchiAutomizer took 5425.62 ms. Allocated memory was 566.2 MB in the beginning and 640.7 MB in the end (delta: 74.4 MB). Free memory was 504.2 MB in the beginning and 513.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 64.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:43,023 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 14 edges - StatisticsResult: Encoded RCFG 7 locations, 11 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 297.62 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 438.6 MB in the beginning and 533.7 MB in the end (delta: -95.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.90 ms. Allocated memory is still 566.2 MB. Free memory was 533.7 MB in the beginning and 532.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.12 ms. Allocated memory is still 566.2 MB. Free memory was 532.3 MB in the beginning and 531.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 239.93 ms. Allocated memory is still 566.2 MB. Free memory was 531.0 MB in the beginning and 518.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.79 ms. Allocated memory is still 566.2 MB. Free memory was 518.0 MB in the beginning and 513.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.13 ms. Allocated memory is still 566.2 MB. Free memory was 512.6 MB in the beginning and 504.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 5425.62 ms. Allocated memory was 566.2 MB in the beginning and 640.7 MB in the end (delta: 74.4 MB). Free memory was 504.2 MB in the beginning and 513.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 64.8 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: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=7occurred 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 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function x and consists of 6 locations. One nondeterministic module has affine ranking function y and consists of 11 locations. One nondeterministic module has affine ranking function x and consists of 14 locations. One nondeterministic module has affine ranking function x and consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 6 iterations. TraceHistogramMax:4. Analysis of lassos took 2.7s. Construction of modules took 0.4s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 46 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 4. Nontrivial modules had stage [4, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 9/26 HoareTripleCheckerStatistics: 87 SDtfs, 245 SDslu, 233 SDs, 0 SdLazy, 551 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq141 hnf94 smp100 dnf100 smp100 tf107 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:28:33.495 ----------------------------------------------- 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_JkSOKR/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:28:43.256 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check