/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:47:55,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:47:55,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:47:55,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:47:55,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:47:55,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:47:55,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:47:55,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:47:55,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:47:55,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:47:55,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:47:55,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:47:55,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:47:55,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:47:55,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:47:55,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:47:55,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:47:55,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:47:55,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:47:55,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:47:55,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:47:55,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:47:55,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:47:55,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:47:55,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:47:55,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:47:55,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:47:55,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:47:55,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:47:55,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:47:55,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:47:55,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:47:55,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:47:55,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:47:55,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:47:55,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:47:55,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-18 15:47:55,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:47:55,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:47:55,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:47:55,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:47:55,586 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:47:55,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:47:55,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:47:55,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:47:55,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:47:55,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:47:55,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:47:55,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:47:55,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:47:55,589 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:47:55,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:47:55,589 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:47:55,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:47:55,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:47:55,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:47:55,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:47:55,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:47:55,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:47:55,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:47:55,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:47:55,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:47:55,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:47:55,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:47:55,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:47:55,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:47:55,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:47:55,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:47:55,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:47:55,871 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:47:55,871 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:47:55,872 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i [2019-12-18 15:47:55,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb900bcfe/55c43af8175b45a3a8a1991e91890030/FLAG83e6841bb [2019-12-18 15:47:56,529 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:47:56,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/14_spin2003.i [2019-12-18 15:47:56,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb900bcfe/55c43af8175b45a3a8a1991e91890030/FLAG83e6841bb [2019-12-18 15:47:56,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb900bcfe/55c43af8175b45a3a8a1991e91890030 [2019-12-18 15:47:56,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:47:56,769 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:47:56,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:47:56,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:47:56,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:47:56,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:47:56" (1/1) ... [2019-12-18 15:47:56,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6e9556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:56, skipping insertion in model container [2019-12-18 15:47:56,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:47:56" (1/1) ... [2019-12-18 15:47:56,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:47:56,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:47:57,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:47:57,259 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:47:57,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:47:57,414 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:47:57,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57 WrapperNode [2019-12-18 15:47:57,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:47:57,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:47:57,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:47:57,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:47:57,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:47:57,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:47:57,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:47:57,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:47:57,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... [2019-12-18 15:47:57,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:47:57,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:47:57,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:47:57,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:47:57,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:47:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 15:47:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 15:47:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:47:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:47:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:47:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:47:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:47:57,563 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:47:57,693 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 15:47:57,698 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 15:47:57,869 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:47:57,872 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-18 15:47:57,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:47:57 BoogieIcfgContainer [2019-12-18 15:47:57,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:47:57,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:47:57,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:47:57,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:47:57,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:47:56" (1/3) ... [2019-12-18 15:47:57,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a77d73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:47:57, skipping insertion in model container [2019-12-18 15:47:57,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:47:57" (2/3) ... [2019-12-18 15:47:57,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a77d73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:47:57, skipping insertion in model container [2019-12-18 15:47:57,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:47:57" (3/3) ... [2019-12-18 15:47:57,894 INFO L109 eAbstractionObserver]: Analyzing ICFG 14_spin2003.i [2019-12-18 15:47:57,904 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:47:57,904 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:47:57,911 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:47:57,912 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:47:57,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,935 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,936 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,937 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,937 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,941 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,943 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:57,964 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 15:47:57,981 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:47:57,981 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:47:57,981 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:47:57,982 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:47:57,982 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:47:57,982 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:47:57,982 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:47:57,982 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:47:57,993 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 29 transitions [2019-12-18 15:47:57,996 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 29 transitions [2019-12-18 15:47:58,029 INFO L126 PetriNetUnfolder]: 3/37 cut-off events. [2019-12-18 15:47:58,029 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:47:58,035 INFO L76 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 37 events. 3/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 5/36 useless extension candidates. Maximal degree in co-relation 19. Up to 4 conditions per place. [2019-12-18 15:47:58,038 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 29 transitions [2019-12-18 15:47:58,052 INFO L126 PetriNetUnfolder]: 3/37 cut-off events. [2019-12-18 15:47:58,052 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:47:58,053 INFO L76 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 37 events. 3/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 5/36 useless extension candidates. Maximal degree in co-relation 19. Up to 4 conditions per place. [2019-12-18 15:47:58,055 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 200 [2019-12-18 15:47:58,056 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:47:58,564 INFO L206 etLargeBlockEncoding]: Checked pairs total: 144 [2019-12-18 15:47:58,565 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 15:47:58,568 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-18 15:47:58,577 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-18 15:47:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-18 15:47:58,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:47:58,585 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:47:58,585 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:47:58,586 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:47:58,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:47:58,592 INFO L82 PathProgramCache]: Analyzing trace with hash 4226274, now seen corresponding path program 1 times [2019-12-18 15:47:58,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:47:58,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125177431] [2019-12-18 15:47:58,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:47:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:47:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:47:58,748 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125177431] [2019-12-18 15:47:58,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:47:58,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:47:58,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494913097] [2019-12-18 15:47:58,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-18 15:47:58,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:47:58,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-18 15:47:58,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 15:47:58,773 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-18 15:47:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:47:58,787 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-18 15:47:58,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-18 15:47:58,788 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-18 15:47:58,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:47:58,808 INFO L225 Difference]: With dead ends: 11 [2019-12-18 15:47:58,809 INFO L226 Difference]: Without dead ends: 11 [2019-12-18 15:47:58,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 15:47:58,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-18 15:47:58,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-18 15:47:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-18 15:47:58,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-18 15:47:58,848 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-18 15:47:58,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:47:58,848 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-18 15:47:58,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-18 15:47:58,849 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-18 15:47:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 15:47:58,849 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:47:58,849 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-18 15:47:58,849 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:47:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:47:58,850 INFO L82 PathProgramCache]: Analyzing trace with hash -233566167, now seen corresponding path program 1 times [2019-12-18 15:47:58,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:47:58,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698998434] [2019-12-18 15:47:58,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:47:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:47:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:47:58,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:47:58,923 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:47:58,925 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:47:58,925 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 15:47:58,938 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,938 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,939 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,939 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,940 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,940 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,941 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,942 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,942 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,943 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,943 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,944 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,944 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,944 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,952 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:58,959 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:47:58,960 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:47:58,960 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:47:58,960 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:47:58,960 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:47:58,960 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:47:58,960 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:47:58,961 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:47:58,962 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:47:58,964 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 40 transitions [2019-12-18 15:47:58,965 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions [2019-12-18 15:47:58,990 INFO L126 PetriNetUnfolder]: 5/57 cut-off events. [2019-12-18 15:47:58,990 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:47:58,995 INFO L76 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 5/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs. 14/61 useless extension candidates. Maximal degree in co-relation 38. Up to 6 conditions per place. [2019-12-18 15:47:59,000 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions [2019-12-18 15:47:59,021 INFO L126 PetriNetUnfolder]: 5/57 cut-off events. [2019-12-18 15:47:59,021 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:47:59,023 INFO L76 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 5/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs. 14/61 useless extension candidates. Maximal degree in co-relation 38. Up to 6 conditions per place. [2019-12-18 15:47:59,026 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 620 [2019-12-18 15:47:59,026 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:47:59,555 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2048 [2019-12-18 15:47:59,556 INFO L214 etLargeBlockEncoding]: Total number of compositions: 24 [2019-12-18 15:47:59,556 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-18 15:47:59,572 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 316 states. [2019-12-18 15:47:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2019-12-18 15:47:59,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 15:47:59,574 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:47:59,574 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:47:59,574 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:47:59,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:47:59,575 INFO L82 PathProgramCache]: Analyzing trace with hash 183210113, now seen corresponding path program 1 times [2019-12-18 15:47:59,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:47:59,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775308121] [2019-12-18 15:47:59,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:47:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:47:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:47:59,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775308121] [2019-12-18 15:47:59,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:47:59,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:47:59,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551681070] [2019-12-18 15:47:59,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:47:59,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:47:59,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:47:59,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:47:59,638 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2019-12-18 15:47:59,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:47:59,682 INFO L93 Difference]: Finished difference Result 256 states and 584 transitions. [2019-12-18 15:47:59,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:47:59,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 15:47:59,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:47:59,690 INFO L225 Difference]: With dead ends: 256 [2019-12-18 15:47:59,690 INFO L226 Difference]: Without dead ends: 256 [2019-12-18 15:47:59,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:47:59,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-12-18 15:47:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2019-12-18 15:47:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-18 15:47:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 537 transitions. [2019-12-18 15:47:59,727 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 537 transitions. Word has length 7 [2019-12-18 15:47:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:47:59,727 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 537 transitions. [2019-12-18 15:47:59,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:47:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 537 transitions. [2019-12-18 15:47:59,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 15:47:59,729 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:47:59,729 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-18 15:47:59,729 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:47:59,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:47:59,730 INFO L82 PathProgramCache]: Analyzing trace with hash -836567895, now seen corresponding path program 1 times [2019-12-18 15:47:59,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:47:59,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902777067] [2019-12-18 15:47:59,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:47:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:47:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:47:59,791 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:47:59,791 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:47:59,791 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:47:59,791 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 15:47:59,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,801 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,801 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,801 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,803 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,803 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,804 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,806 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,806 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,806 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,807 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,807 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,807 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,808 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,808 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,814 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,815 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,815 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:47:59,819 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 15:47:59,819 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:47:59,819 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:47:59,820 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:47:59,820 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:47:59,820 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:47:59,820 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:47:59,820 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:47:59,820 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:47:59,824 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 51 transitions [2019-12-18 15:47:59,824 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions [2019-12-18 15:47:59,853 INFO L126 PetriNetUnfolder]: 7/77 cut-off events. [2019-12-18 15:47:59,853 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:47:59,855 INFO L76 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 77 events. 7/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 187 event pairs. 27/90 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2019-12-18 15:47:59,863 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions [2019-12-18 15:47:59,891 INFO L126 PetriNetUnfolder]: 7/77 cut-off events. [2019-12-18 15:47:59,893 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:47:59,896 INFO L76 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 77 events. 7/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 187 event pairs. 27/90 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2019-12-18 15:47:59,911 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2019-12-18 15:47:59,912 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:48:00,576 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4852 [2019-12-18 15:48:00,576 INFO L214 etLargeBlockEncoding]: Total number of compositions: 31 [2019-12-18 15:48:00,577 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 30 transitions [2019-12-18 15:48:00,735 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2500 states. [2019-12-18 15:48:00,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states. [2019-12-18 15:48:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 15:48:00,737 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:00,737 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:00,737 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:00,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:00,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1692748366, now seen corresponding path program 1 times [2019-12-18 15:48:00,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:00,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161474702] [2019-12-18 15:48:00,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:00,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161474702] [2019-12-18 15:48:00,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:00,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:48:00,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235655369] [2019-12-18 15:48:00,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:48:00,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:00,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:48:00,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:00,793 INFO L87 Difference]: Start difference. First operand 2500 states. Second operand 3 states. [2019-12-18 15:48:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:00,856 INFO L93 Difference]: Finished difference Result 2382 states and 7294 transitions. [2019-12-18 15:48:00,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:48:00,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 15:48:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:00,882 INFO L225 Difference]: With dead ends: 2382 [2019-12-18 15:48:00,883 INFO L226 Difference]: Without dead ends: 2382 [2019-12-18 15:48:00,883 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:00,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2019-12-18 15:48:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2059. [2019-12-18 15:48:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2019-12-18 15:48:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 6312 transitions. [2019-12-18 15:48:00,995 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 6312 transitions. Word has length 7 [2019-12-18 15:48:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:00,995 INFO L462 AbstractCegarLoop]: Abstraction has 2059 states and 6312 transitions. [2019-12-18 15:48:00,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:48:00,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 6312 transitions. [2019-12-18 15:48:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:48:00,997 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:00,997 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:00,997 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:00,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:00,998 INFO L82 PathProgramCache]: Analyzing trace with hash -269786627, now seen corresponding path program 1 times [2019-12-18 15:48:00,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:00,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504572973] [2019-12-18 15:48:00,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:01,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:01,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504572973] [2019-12-18 15:48:01,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:01,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:48:01,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403901430] [2019-12-18 15:48:01,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:48:01,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:01,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:48:01,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:01,051 INFO L87 Difference]: Start difference. First operand 2059 states and 6312 transitions. Second operand 3 states. [2019-12-18 15:48:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:01,081 INFO L93 Difference]: Finished difference Result 510 states and 1147 transitions. [2019-12-18 15:48:01,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:48:01,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 15:48:01,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:01,085 INFO L225 Difference]: With dead ends: 510 [2019-12-18 15:48:01,085 INFO L226 Difference]: Without dead ends: 510 [2019-12-18 15:48:01,086 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2019-12-18 15:48:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2019-12-18 15:48:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-12-18 15:48:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 1147 transitions. [2019-12-18 15:48:01,103 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 1147 transitions. Word has length 12 [2019-12-18 15:48:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:01,103 INFO L462 AbstractCegarLoop]: Abstraction has 510 states and 1147 transitions. [2019-12-18 15:48:01,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:48:01,104 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 1147 transitions. [2019-12-18 15:48:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:48:01,108 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:01,109 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-18 15:48:01,109 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:01,109 INFO L82 PathProgramCache]: Analyzing trace with hash 988221295, now seen corresponding path program 1 times [2019-12-18 15:48:01,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:01,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56069208] [2019-12-18 15:48:01,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:48:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:48:01,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:48:01,155 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:48:01,155 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:48:01,155 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 15:48:01,161 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,161 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,163 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,163 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,163 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,164 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,164 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,164 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,164 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,164 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,164 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,165 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,165 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,165 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,165 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,165 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,166 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,166 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,166 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,166 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,167 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,172 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,172 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,172 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,172 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,174 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,174 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,174 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,174 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,176 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,176 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:01,181 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 15:48:01,181 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:48:01,182 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:48:01,182 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:48:01,182 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:48:01,182 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:48:01,182 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:48:01,182 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:48:01,182 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:48:01,183 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 62 transitions [2019-12-18 15:48:01,184 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions [2019-12-18 15:48:01,195 INFO L126 PetriNetUnfolder]: 9/97 cut-off events. [2019-12-18 15:48:01,196 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:48:01,197 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 97 events. 9/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs. 44/123 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2019-12-18 15:48:01,201 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions [2019-12-18 15:48:01,220 INFO L126 PetriNetUnfolder]: 9/97 cut-off events. [2019-12-18 15:48:01,220 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:48:01,222 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 97 events. 9/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs. 44/123 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2019-12-18 15:48:01,226 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2120 [2019-12-18 15:48:01,226 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:48:02,092 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8985 [2019-12-18 15:48:02,092 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2019-12-18 15:48:02,093 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions [2019-12-18 15:48:04,442 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19968 states. [2019-12-18 15:48:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 19968 states. [2019-12-18 15:48:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 15:48:04,443 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:04,443 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:04,443 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:48:04,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:04,444 INFO L82 PathProgramCache]: Analyzing trace with hash 339964421, now seen corresponding path program 1 times [2019-12-18 15:48:04,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:04,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460589433] [2019-12-18 15:48:04,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:04,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460589433] [2019-12-18 15:48:04,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:04,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:48:04,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749667048] [2019-12-18 15:48:04,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:48:04,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:04,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:48:04,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:04,478 INFO L87 Difference]: Start difference. First operand 19968 states. Second operand 3 states. [2019-12-18 15:48:04,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:04,893 INFO L93 Difference]: Finished difference Result 21313 states and 82179 transitions. [2019-12-18 15:48:04,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:48:04,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 15:48:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:05,036 INFO L225 Difference]: With dead ends: 21313 [2019-12-18 15:48:05,036 INFO L226 Difference]: Without dead ends: 21313 [2019-12-18 15:48:05,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21313 states. [2019-12-18 15:48:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21313 to 17855. [2019-12-18 15:48:06,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17855 states. [2019-12-18 15:48:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17855 states to 17855 states and 69278 transitions. [2019-12-18 15:48:06,774 INFO L78 Accepts]: Start accepts. Automaton has 17855 states and 69278 transitions. Word has length 7 [2019-12-18 15:48:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:06,774 INFO L462 AbstractCegarLoop]: Abstraction has 17855 states and 69278 transitions. [2019-12-18 15:48:06,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:48:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 17855 states and 69278 transitions. [2019-12-18 15:48:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:48:06,775 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:06,776 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:06,776 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:48:06,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:06,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1208148184, now seen corresponding path program 1 times [2019-12-18 15:48:06,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:06,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651162360] [2019-12-18 15:48:06,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:48:06,808 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651162360] [2019-12-18 15:48:06,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:06,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:48:06,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714398517] [2019-12-18 15:48:06,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:48:06,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:06,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:48:06,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:06,809 INFO L87 Difference]: Start difference. First operand 17855 states and 69278 transitions. Second operand 3 states. [2019-12-18 15:48:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:06,844 INFO L93 Difference]: Finished difference Result 1917 states and 4962 transitions. [2019-12-18 15:48:06,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:48:06,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 15:48:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:06,852 INFO L225 Difference]: With dead ends: 1917 [2019-12-18 15:48:06,852 INFO L226 Difference]: Without dead ends: 1917 [2019-12-18 15:48:06,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:06,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2019-12-18 15:48:06,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2019-12-18 15:48:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1917 states. [2019-12-18 15:48:06,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 4962 transitions. [2019-12-18 15:48:06,898 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 4962 transitions. Word has length 12 [2019-12-18 15:48:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:06,898 INFO L462 AbstractCegarLoop]: Abstraction has 1917 states and 4962 transitions. [2019-12-18 15:48:06,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:48:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 4962 transitions. [2019-12-18 15:48:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-18 15:48:06,899 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:06,899 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:06,899 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:48:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:06,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1061051232, now seen corresponding path program 1 times [2019-12-18 15:48:06,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:06,900 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401705934] [2019-12-18 15:48:06,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:48:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:48:06,936 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:48:06,936 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:48:06,936 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:48:06,936 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 15:48:06,945 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,945 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,945 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,947 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,947 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,948 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,948 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,949 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,951 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,951 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,952 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,952 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,953 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,953 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,955 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,956 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,958 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,959 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,959 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,961 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:06,964 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 15:48:06,964 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:48:06,964 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:48:06,965 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:48:06,965 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:48:06,965 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:48:06,965 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:48:06,965 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:48:06,965 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:48:06,966 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 73 transitions [2019-12-18 15:48:06,966 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions [2019-12-18 15:48:06,983 INFO L126 PetriNetUnfolder]: 11/117 cut-off events. [2019-12-18 15:48:06,983 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:48:06,985 INFO L76 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 117 events. 11/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 294 event pairs. 65/160 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2019-12-18 15:48:06,992 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions [2019-12-18 15:48:07,009 INFO L126 PetriNetUnfolder]: 11/117 cut-off events. [2019-12-18 15:48:07,009 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:48:07,011 INFO L76 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 117 events. 11/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 294 event pairs. 65/160 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2019-12-18 15:48:07,017 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3200 [2019-12-18 15:48:07,017 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:48:08,303 INFO L206 etLargeBlockEncoding]: Checked pairs total: 13863 [2019-12-18 15:48:08,304 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-18 15:48:08,304 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 46 transitions [2019-12-18 15:49:05,682 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 139808 states. [2019-12-18 15:49:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 139808 states. [2019-12-18 15:49:05,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 15:49:05,683 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:05,683 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:49:05,683 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:05,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:05,684 INFO L82 PathProgramCache]: Analyzing trace with hash 97123028, now seen corresponding path program 1 times [2019-12-18 15:49:05,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:05,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54397316] [2019-12-18 15:49:05,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:49:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:49:05,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54397316] [2019-12-18 15:49:05,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:49:05,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:49:05,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892072928] [2019-12-18 15:49:05,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:49:05,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:49:05,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:49:05,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:05,711 INFO L87 Difference]: Start difference. First operand 139808 states. Second operand 3 states. [2019-12-18 15:49:10,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:49:10,617 INFO L93 Difference]: Finished difference Result 161771 states and 749265 transitions. [2019-12-18 15:49:10,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:49:10,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 15:49:10,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:49:11,550 INFO L225 Difference]: With dead ends: 161771 [2019-12-18 15:49:11,551 INFO L226 Difference]: Without dead ends: 161771 [2019-12-18 15:49:11,551 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:15,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161771 states. [2019-12-18 15:49:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161771 to 134826. [2019-12-18 15:49:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134826 states. [2019-12-18 15:49:24,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134826 states to 134826 states and 631449 transitions. [2019-12-18 15:49:24,927 INFO L78 Accepts]: Start accepts. Automaton has 134826 states and 631449 transitions. Word has length 7 [2019-12-18 15:49:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:49:24,928 INFO L462 AbstractCegarLoop]: Abstraction has 134826 states and 631449 transitions. [2019-12-18 15:49:24,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:49:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand 134826 states and 631449 transitions. [2019-12-18 15:49:24,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:49:24,928 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:24,929 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:49:24,929 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:24,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:24,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1217805150, now seen corresponding path program 1 times [2019-12-18 15:49:24,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:24,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21769047] [2019-12-18 15:49:24,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:49:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:49:24,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21769047] [2019-12-18 15:49:24,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:49:24,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:49:24,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604777652] [2019-12-18 15:49:24,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:49:24,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:49:24,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:49:24,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:24,955 INFO L87 Difference]: Start difference. First operand 134826 states and 631449 transitions. Second operand 3 states. [2019-12-18 15:49:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:49:24,992 INFO L93 Difference]: Finished difference Result 5043 states and 13467 transitions. [2019-12-18 15:49:24,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:49:24,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 15:49:24,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:49:24,999 INFO L225 Difference]: With dead ends: 5043 [2019-12-18 15:49:24,999 INFO L226 Difference]: Without dead ends: 5043 [2019-12-18 15:49:24,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:49:25,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2019-12-18 15:49:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 5043. [2019-12-18 15:49:25,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2019-12-18 15:49:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 13467 transitions. [2019-12-18 15:49:25,079 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 13467 transitions. Word has length 12 [2019-12-18 15:49:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:49:25,079 INFO L462 AbstractCegarLoop]: Abstraction has 5043 states and 13467 transitions. [2019-12-18 15:49:25,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:49:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 13467 transitions. [2019-12-18 15:49:25,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-18 15:49:25,080 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:49:25,080 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:49:25,080 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:49:25,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:49:25,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2013146733, now seen corresponding path program 1 times [2019-12-18 15:49:25,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:49:25,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16013487] [2019-12-18 15:49:25,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:49:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:49:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:49:25,102 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:49:25,102 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:49:25,103 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:49:25,103 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-18 15:49:25,110 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,110 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,110 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,110 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,111 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,111 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,111 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,111 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,111 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,112 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,112 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,112 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,112 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,112 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,112 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,113 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,113 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,113 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,113 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,113 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,113 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,114 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,114 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,114 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,114 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,114 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,114 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,115 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,115 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,115 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,115 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,115 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,115 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,116 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,116 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,116 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,116 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,117 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,117 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,117 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,119 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,119 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,119 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,119 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,121 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,121 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,121 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,121 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,122 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,122 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,122 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,122 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,123 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,124 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,124 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,124 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,125 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,125 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,126 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,126 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:49:25,127 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-18 15:49:25,127 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:49:25,127 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:49:25,127 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:49:25,127 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:49:25,128 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:49:25,128 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:49:25,128 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:49:25,128 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:49:25,129 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 84 transitions [2019-12-18 15:49:25,129 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions [2019-12-18 15:49:25,144 INFO L126 PetriNetUnfolder]: 13/137 cut-off events. [2019-12-18 15:49:25,144 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:49:25,147 INFO L76 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 137 events. 13/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 347 event pairs. 90/201 useless extension candidates. Maximal degree in co-relation 141. Up to 14 conditions per place. [2019-12-18 15:49:25,155 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions [2019-12-18 15:49:25,169 INFO L126 PetriNetUnfolder]: 13/137 cut-off events. [2019-12-18 15:49:25,170 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:49:25,172 INFO L76 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 137 events. 13/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 347 event pairs. 90/201 useless extension candidates. Maximal degree in co-relation 141. Up to 14 conditions per place. [2019-12-18 15:49:25,180 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4500 [2019-12-18 15:49:25,181 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:49:26,744 INFO L206 etLargeBlockEncoding]: Checked pairs total: 19365 [2019-12-18 15:49:26,745 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 15:49:26,745 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 53 transitions Received shutdown request... [2019-12-18 15:52:13,855 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 15:52:13,858 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 15:52:13,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:52:13 BasicIcfg [2019-12-18 15:52:13,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:52:13,861 INFO L168 Benchmark]: Toolchain (without parser) took 257092.09 ms. Allocated memory was 140.0 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 103.6 MB in the beginning and 881.8 MB in the end (delta: -778.2 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2019-12-18 15:52:13,862 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 15:52:13,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.88 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.4 MB in the beginning and 163.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:52:13,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 205.0 MB. Free memory was 163.2 MB in the beginning and 161.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-18 15:52:13,865 INFO L168 Benchmark]: Boogie Preprocessor took 24.93 ms. Allocated memory is still 205.0 MB. Free memory was 161.0 MB in the beginning and 159.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:52:13,865 INFO L168 Benchmark]: RCFGBuilder took 383.58 ms. Allocated memory is still 205.0 MB. Free memory was 159.7 MB in the beginning and 144.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-12-18 15:52:13,866 INFO L168 Benchmark]: TraceAbstraction took 255981.75 ms. Allocated memory was 205.0 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 143.3 MB in the beginning and 881.9 MB in the end (delta: -738.6 MB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2019-12-18 15:52:13,871 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.88 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.4 MB in the beginning and 163.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 205.0 MB. Free memory was 163.2 MB in the beginning and 161.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.93 ms. Allocated memory is still 205.0 MB. Free memory was 161.0 MB in the beginning and 159.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 383.58 ms. Allocated memory is still 205.0 MB. Free memory was 159.7 MB in the beginning and 144.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255981.75 ms. Allocated memory was 205.0 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 143.3 MB in the beginning and 881.9 MB in the end (delta: -738.6 MB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 30 ProgramPointsBefore, 9 ProgramPointsAfterwards, 29 TransitionsBefore, 8 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 94 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 144 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 42 ProgramPointsBefore, 22 ProgramPointsAfterwards, 40 TransitionsBefore, 21 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 288 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 24 SemBasedMoverChecksPositive, 19 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 2048 CheckedPairsTotal, 24 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 54 ProgramPointsBefore, 31 ProgramPointsAfterwards, 51 TransitionsBefore, 30 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 627 VarBasedMoverChecksPositive, 119 VarBasedMoverChecksNegative, 131 SemBasedMoverChecksPositive, 37 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 4852 CheckedPairsTotal, 31 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 66 ProgramPointsBefore, 40 ProgramPointsAfterwards, 62 TransitionsBefore, 39 TransitionsAfterwards, 2120 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 924 VarBasedMoverChecksPositive, 265 VarBasedMoverChecksNegative, 319 SemBasedMoverChecksPositive, 59 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 8985 CheckedPairsTotal, 38 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 78 ProgramPointsBefore, 48 ProgramPointsAfterwards, 73 TransitionsBefore, 46 TransitionsAfterwards, 3200 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 1318 VarBasedMoverChecksPositive, 327 VarBasedMoverChecksNegative, 440 SemBasedMoverChecksPositive, 58 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 0 MoverChecksTotal, 13863 CheckedPairsTotal, 42 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 90 ProgramPointsBefore, 56 ProgramPointsAfterwards, 84 TransitionsBefore, 53 TransitionsAfterwards, 4500 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1947 VarBasedMoverChecksPositive, 411 VarBasedMoverChecksNegative, 478 SemBasedMoverChecksPositive, 93 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 0 MoverChecksTotal, 19365 CheckedPairsTotal, 46 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 689]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 689). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 56 places, 53 transitions. Already constructed 279090 states. Currently 71407 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Result: TIMEOUT, OverallTime: 168.7s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, 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: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown