/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:19:28,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:19:28,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:19:28,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:19:28,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:19:29,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:19:29,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:19:29,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:19:29,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:19:29,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:19:29,022 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:19:29,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:19:29,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:19:29,024 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:19:29,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:19:29,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:19:29,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:19:29,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:19:29,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:19:29,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:19:29,025 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:19:29,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:19:29,026 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:19:29,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:19:29,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:19:29,026 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:19:29,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:19:29,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:19:29,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:19:29,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:19:29,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:19:29,028 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:19:29,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:19:29,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:19:29,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:19:29,028 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:19:29,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:19:29,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:19:29,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:19:29,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:19:29,312 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:19:29,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2023-08-25 07:19:30,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:19:30,492 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:19:30,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2023-08-25 07:19:30,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0361cb5d3/b43ae7cc52c046f48fb709bf2da3194d/FLAGe0bdfeac3 [2023-08-25 07:19:30,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0361cb5d3/b43ae7cc52c046f48fb709bf2da3194d [2023-08-25 07:19:30,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:19:30,510 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:19:30,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:19:30,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:19:30,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:19:30,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14433d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30, skipping insertion in model container [2023-08-25 07:19:30,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,532 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:19:30,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:19:30,712 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:19:30,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:19:30,749 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:19:30,749 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:19:30,755 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:19:30,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30 WrapperNode [2023-08-25 07:19:30,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:19:30,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:19:30,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:19:30,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:19:30,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,815 INFO L138 Inliner]: procedures = 21, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 233 [2023-08-25 07:19:30,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:19:30,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:19:30,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:19:30,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:19:30,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:19:30,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:19:30,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:19:30,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:19:30,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (1/1) ... [2023-08-25 07:19:30,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:19:30,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:19:30,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 07:19:30,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 07:19:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:19:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 07:19:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 07:19:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 07:19:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 07:19:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:19:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:19:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:19:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 07:19:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 07:19:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:19:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:19:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:19:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:19:31,010 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:19:31,139 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:19:31,142 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:19:31,498 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:19:31,624 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:19:31,625 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 07:19:31,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:19:31 BoogieIcfgContainer [2023-08-25 07:19:31,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:19:31,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:19:31,629 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:19:31,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:19:31,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:19:30" (1/3) ... [2023-08-25 07:19:31,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a3020d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:19:31, skipping insertion in model container [2023-08-25 07:19:31,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:19:30" (2/3) ... [2023-08-25 07:19:31,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a3020d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:19:31, skipping insertion in model container [2023-08-25 07:19:31,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:19:31" (3/3) ... [2023-08-25 07:19:31,633 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2023-08-25 07:19:31,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:19:31,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-25 07:19:31,645 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:19:31,711 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:19:31,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 124 transitions, 264 flow [2023-08-25 07:19:31,805 INFO L124 PetriNetUnfolderBase]: 1/122 cut-off events. [2023-08-25 07:19:31,806 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:19:31,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 122 events. 1/122 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 184 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-25 07:19:31,811 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 124 transitions, 264 flow [2023-08-25 07:19:31,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 113 transitions, 238 flow [2023-08-25 07:19:31,819 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:19:31,832 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 113 transitions, 238 flow [2023-08-25 07:19:31,836 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 113 transitions, 238 flow [2023-08-25 07:19:31,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 113 transitions, 238 flow [2023-08-25 07:19:31,877 INFO L124 PetriNetUnfolderBase]: 1/113 cut-off events. [2023-08-25 07:19:31,877 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:19:31,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 113 events. 1/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 183 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-25 07:19:31,879 INFO L119 LiptonReduction]: Number of co-enabled transitions 3068 [2023-08-25 07:19:33,826 INFO L134 LiptonReduction]: Checked pairs total: 21393 [2023-08-25 07:19:33,826 INFO L136 LiptonReduction]: Total number of compositions: 70 [2023-08-25 07:19:33,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:19:33,839 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10caa754, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:19:33,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2023-08-25 07:19:33,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:19:33,841 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 07:19:33,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:19:33,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:33,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 07:19:33,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:33,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:33,844 INFO L85 PathProgramCache]: Analyzing trace with hash 702672, now seen corresponding path program 1 times [2023-08-25 07:19:33,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:33,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283516649] [2023-08-25 07:19:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:33,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:33,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:33,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:33,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283516649] [2023-08-25 07:19:33,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283516649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:33,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:33,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 07:19:33,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785999933] [2023-08-25 07:19:33,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:33,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:19:33,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:33,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:19:33,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:19:33,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 194 [2023-08-25 07:19:33,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:33,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:33,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 194 [2023-08-25 07:19:33,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:34,051 INFO L124 PetriNetUnfolderBase]: 297/540 cut-off events. [2023-08-25 07:19:34,051 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-25 07:19:34,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1117 conditions, 540 events. 297/540 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1882 event pairs, 297 based on Foata normal form. 0/540 useless extension candidates. Maximal degree in co-relation 1016. Up to 541 conditions per place. [2023-08-25 07:19:34,055 INFO L140 encePairwiseOnDemand]: 161/194 looper letters, 27 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-08-25 07:19:34,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 120 flow [2023-08-25 07:19:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:19:34,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:19:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 200 transitions. [2023-08-25 07:19:34,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5154639175257731 [2023-08-25 07:19:34,063 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 200 transitions. [2023-08-25 07:19:34,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 200 transitions. [2023-08-25 07:19:34,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:34,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 200 transitions. [2023-08-25 07:19:34,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,069 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,070 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 132 flow. Second operand 2 states and 200 transitions. [2023-08-25 07:19:34,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 120 flow [2023-08-25 07:19:34,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 07:19:34,073 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 58 flow [2023-08-25 07:19:34,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2023-08-25 07:19:34,076 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -36 predicate places. [2023-08-25 07:19:34,077 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 58 flow [2023-08-25 07:19:34,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:34,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:34,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:19:34,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:34,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:34,078 INFO L85 PathProgramCache]: Analyzing trace with hash -811307250, now seen corresponding path program 1 times [2023-08-25 07:19:34,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:34,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934671943] [2023-08-25 07:19:34,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:34,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:34,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:34,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934671943] [2023-08-25 07:19:34,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934671943] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:34,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:34,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 07:19:34,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332712994] [2023-08-25 07:19:34,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:34,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 07:19:34,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:34,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 07:19:34,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 07:19:34,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 194 [2023-08-25 07:19:34,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 58 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:34,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 194 [2023-08-25 07:19:34,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:34,580 INFO L124 PetriNetUnfolderBase]: 507/926 cut-off events. [2023-08-25 07:19:34,581 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-25 07:19:34,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1866 conditions, 926 events. 507/926 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4023 event pairs, 45 based on Foata normal form. 12/938 useless extension candidates. Maximal degree in co-relation 1863. Up to 247 conditions per place. [2023-08-25 07:19:34,586 INFO L140 encePairwiseOnDemand]: 186/194 looper letters, 82 selfloop transitions, 15 changer transitions 0/97 dead transitions. [2023-08-25 07:19:34,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 97 transitions, 397 flow [2023-08-25 07:19:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 07:19:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 07:19:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 692 transitions. [2023-08-25 07:19:34,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3963344788087056 [2023-08-25 07:19:34,591 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 692 transitions. [2023-08-25 07:19:34,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 692 transitions. [2023-08-25 07:19:34,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:34,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 692 transitions. [2023-08-25 07:19:34,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.88888888888889) internal successors, (692), 9 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,600 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,600 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 58 flow. Second operand 9 states and 692 transitions. [2023-08-25 07:19:34,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 97 transitions, 397 flow [2023-08-25 07:19:34,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 97 transitions, 397 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:19:34,602 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 147 flow [2023-08-25 07:19:34,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=147, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2023-08-25 07:19:34,603 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -24 predicate places. [2023-08-25 07:19:34,603 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 147 flow [2023-08-25 07:19:34,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:34,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:34,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:19:34,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:34,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:34,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2125769144, now seen corresponding path program 2 times [2023-08-25 07:19:34,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:34,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193350546] [2023-08-25 07:19:34,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:34,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:34,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:34,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193350546] [2023-08-25 07:19:34,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193350546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:34,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:34,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:19:34,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36800108] [2023-08-25 07:19:34,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:34,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:19:34,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:34,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:19:34,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:19:34,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 194 [2023-08-25 07:19:34,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:34,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 194 [2023-08-25 07:19:34,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:34,808 INFO L124 PetriNetUnfolderBase]: 456/847 cut-off events. [2023-08-25 07:19:34,808 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2023-08-25 07:19:34,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2036 conditions, 847 events. 456/847 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3651 event pairs, 303 based on Foata normal form. 12/859 useless extension candidates. Maximal degree in co-relation 2028. Up to 679 conditions per place. [2023-08-25 07:19:34,813 INFO L140 encePairwiseOnDemand]: 191/194 looper letters, 53 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-08-25 07:19:34,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 312 flow [2023-08-25 07:19:34,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:19:34,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:19:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2023-08-25 07:19:34,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.422680412371134 [2023-08-25 07:19:34,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 246 transitions. [2023-08-25 07:19:34,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 246 transitions. [2023-08-25 07:19:34,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:34,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 246 transitions. [2023-08-25 07:19:34,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,816 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 147 flow. Second operand 3 states and 246 transitions. [2023-08-25 07:19:34,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 312 flow [2023-08-25 07:19:34,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 55 transitions, 312 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:19:34,820 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 155 flow [2023-08-25 07:19:34,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2023-08-25 07:19:34,821 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -21 predicate places. [2023-08-25 07:19:34,821 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 155 flow [2023-08-25 07:19:34,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:34,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:34,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:19:34,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:34,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:34,825 INFO L85 PathProgramCache]: Analyzing trace with hash 95936964, now seen corresponding path program 3 times [2023-08-25 07:19:34,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:34,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561133574] [2023-08-25 07:19:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:34,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:34,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561133574] [2023-08-25 07:19:34,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561133574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:34,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:34,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:19:34,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069974084] [2023-08-25 07:19:34,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:34,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:19:34,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:34,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:19:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:19:34,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 194 [2023-08-25 07:19:34,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:34,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:34,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 194 [2023-08-25 07:19:34,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:35,023 INFO L124 PetriNetUnfolderBase]: 419/792 cut-off events. [2023-08-25 07:19:35,023 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2023-08-25 07:19:35,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 792 events. 419/792 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3440 event pairs, 272 based on Foata normal form. 12/804 useless extension candidates. Maximal degree in co-relation 2010. Up to 620 conditions per place. [2023-08-25 07:19:35,027 INFO L140 encePairwiseOnDemand]: 191/194 looper letters, 53 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-08-25 07:19:35,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 55 transitions, 325 flow [2023-08-25 07:19:35,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:19:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:19:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2023-08-25 07:19:35,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.422680412371134 [2023-08-25 07:19:35,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 246 transitions. [2023-08-25 07:19:35,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 246 transitions. [2023-08-25 07:19:35,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:35,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 246 transitions. [2023-08-25 07:19:35,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,031 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 155 flow. Second operand 3 states and 246 transitions. [2023-08-25 07:19:35,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 55 transitions, 325 flow [2023-08-25 07:19:35,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 55 transitions, 317 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:19:35,034 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 159 flow [2023-08-25 07:19:35,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2023-08-25 07:19:35,036 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -20 predicate places. [2023-08-25 07:19:35,036 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 159 flow [2023-08-25 07:19:35,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:35,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:35,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:19:35,037 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:35,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1790677722, now seen corresponding path program 4 times [2023-08-25 07:19:35,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:35,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814122396] [2023-08-25 07:19:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:35,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:35,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:35,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814122396] [2023-08-25 07:19:35,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814122396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:35,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:35,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:19:35,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933028268] [2023-08-25 07:19:35,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:35,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 07:19:35,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:35,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 07:19:35,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-25 07:19:35,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 194 [2023-08-25 07:19:35,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 159 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:35,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 194 [2023-08-25 07:19:35,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:35,342 INFO L124 PetriNetUnfolderBase]: 475/950 cut-off events. [2023-08-25 07:19:35,342 INFO L125 PetriNetUnfolderBase]: For 407/407 co-relation queries the response was YES. [2023-08-25 07:19:35,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2499 conditions, 950 events. 475/950 cut-off events. For 407/407 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4366 event pairs, 221 based on Foata normal form. 2/952 useless extension candidates. Maximal degree in co-relation 2488. Up to 438 conditions per place. [2023-08-25 07:19:35,346 INFO L140 encePairwiseOnDemand]: 188/194 looper letters, 67 selfloop transitions, 6 changer transitions 32/105 dead transitions. [2023-08-25 07:19:35,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 105 transitions, 611 flow [2023-08-25 07:19:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 07:19:35,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 07:19:35,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 535 transitions. [2023-08-25 07:19:35,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3939617083946981 [2023-08-25 07:19:35,348 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 535 transitions. [2023-08-25 07:19:35,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 535 transitions. [2023-08-25 07:19:35,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:35,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 535 transitions. [2023-08-25 07:19:35,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.42857142857143) internal successors, (535), 7 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 194.0) internal successors, (1552), 8 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,351 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 194.0) internal successors, (1552), 8 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,351 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 159 flow. Second operand 7 states and 535 transitions. [2023-08-25 07:19:35,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 105 transitions, 611 flow [2023-08-25 07:19:35,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 105 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:19:35,354 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 169 flow [2023-08-25 07:19:35,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=169, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2023-08-25 07:19:35,354 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -13 predicate places. [2023-08-25 07:19:35,355 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 169 flow [2023-08-25 07:19:35,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:35,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:35,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:19:35,355 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:35,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:35,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1897798978, now seen corresponding path program 5 times [2023-08-25 07:19:35,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:35,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864391924] [2023-08-25 07:19:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:35,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:35,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:35,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864391924] [2023-08-25 07:19:35,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864391924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:35,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:35,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 07:19:35,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965713013] [2023-08-25 07:19:35,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:35,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 07:19:35,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:35,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 07:19:35,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-25 07:19:35,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 194 [2023-08-25 07:19:35,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 169 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:35,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 194 [2023-08-25 07:19:35,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:35,827 INFO L124 PetriNetUnfolderBase]: 396/831 cut-off events. [2023-08-25 07:19:35,827 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2023-08-25 07:19:35,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 831 events. 396/831 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3850 event pairs, 138 based on Foata normal form. 10/841 useless extension candidates. Maximal degree in co-relation 2282. Up to 300 conditions per place. [2023-08-25 07:19:35,830 INFO L140 encePairwiseOnDemand]: 187/194 looper letters, 63 selfloop transitions, 8 changer transitions 18/89 dead transitions. [2023-08-25 07:19:35,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 523 flow [2023-08-25 07:19:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:19:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:19:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2023-08-25 07:19:35,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40807560137457044 [2023-08-25 07:19:35,832 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2023-08-25 07:19:35,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2023-08-25 07:19:35,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:35,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2023-08-25 07:19:35,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,834 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,834 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 169 flow. Second operand 6 states and 475 transitions. [2023-08-25 07:19:35,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 523 flow [2023-08-25 07:19:35,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 89 transitions, 511 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-25 07:19:35,837 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 178 flow [2023-08-25 07:19:35,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2023-08-25 07:19:35,838 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -13 predicate places. [2023-08-25 07:19:35,838 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 178 flow [2023-08-25 07:19:35,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:35,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:35,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 07:19:35,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:35,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2130984454, now seen corresponding path program 6 times [2023-08-25 07:19:35,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:35,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501126859] [2023-08-25 07:19:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:35,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:35,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:35,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:35,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501126859] [2023-08-25 07:19:35,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501126859] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:35,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:35,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:19:35,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359507103] [2023-08-25 07:19:35,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:35,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 07:19:35,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:35,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 07:19:35,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-25 07:19:35,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 194 [2023-08-25 07:19:35,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:35,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:35,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 194 [2023-08-25 07:19:35,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:36,095 INFO L124 PetriNetUnfolderBase]: 360/762 cut-off events. [2023-08-25 07:19:36,096 INFO L125 PetriNetUnfolderBase]: For 531/531 co-relation queries the response was YES. [2023-08-25 07:19:36,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 762 events. 360/762 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3405 event pairs, 182 based on Foata normal form. 3/765 useless extension candidates. Maximal degree in co-relation 2156. Up to 351 conditions per place. [2023-08-25 07:19:36,098 INFO L140 encePairwiseOnDemand]: 189/194 looper letters, 44 selfloop transitions, 5 changer transitions 31/80 dead transitions. [2023-08-25 07:19:36,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 510 flow [2023-08-25 07:19:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 07:19:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 07:19:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 522 transitions. [2023-08-25 07:19:36,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38438880706921946 [2023-08-25 07:19:36,100 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 522 transitions. [2023-08-25 07:19:36,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 522 transitions. [2023-08-25 07:19:36,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:36,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 522 transitions. [2023-08-25 07:19:36,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 194.0) internal successors, (1552), 8 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,103 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 194.0) internal successors, (1552), 8 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,103 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 178 flow. Second operand 7 states and 522 transitions. [2023-08-25 07:19:36,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 510 flow [2023-08-25 07:19:36,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 471 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-25 07:19:36,105 INFO L231 Difference]: Finished difference. Result has 55 places, 36 transitions, 156 flow [2023-08-25 07:19:36,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=156, PETRI_PLACES=55, PETRI_TRANSITIONS=36} [2023-08-25 07:19:36,106 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -12 predicate places. [2023-08-25 07:19:36,106 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 36 transitions, 156 flow [2023-08-25 07:19:36,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:36,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:36,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 07:19:36,106 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:36,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:36,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1877586622, now seen corresponding path program 7 times [2023-08-25 07:19:36,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:36,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177941557] [2023-08-25 07:19:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:36,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177941557] [2023-08-25 07:19:36,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177941557] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:36,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:36,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 07:19:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825521696] [2023-08-25 07:19:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:36,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 07:19:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:36,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 07:19:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-25 07:19:36,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 194 [2023-08-25 07:19:36,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 36 transitions, 156 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:36,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 194 [2023-08-25 07:19:36,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:36,331 INFO L124 PetriNetUnfolderBase]: 220/447 cut-off events. [2023-08-25 07:19:36,332 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2023-08-25 07:19:36,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 447 events. 220/447 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1619 event pairs, 91 based on Foata normal form. 10/457 useless extension candidates. Maximal degree in co-relation 1237. Up to 268 conditions per place. [2023-08-25 07:19:36,333 INFO L140 encePairwiseOnDemand]: 187/194 looper letters, 34 selfloop transitions, 3 changer transitions 15/52 dead transitions. [2023-08-25 07:19:36,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 52 transitions, 311 flow [2023-08-25 07:19:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 07:19:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 07:19:36,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2023-08-25 07:19:36,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3917525773195876 [2023-08-25 07:19:36,335 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 380 transitions. [2023-08-25 07:19:36,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 380 transitions. [2023-08-25 07:19:36,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:36,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 380 transitions. [2023-08-25 07:19:36,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,337 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,337 INFO L175 Difference]: Start difference. First operand has 55 places, 36 transitions, 156 flow. Second operand 5 states and 380 transitions. [2023-08-25 07:19:36,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 52 transitions, 311 flow [2023-08-25 07:19:36,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 289 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-25 07:19:36,338 INFO L231 Difference]: Finished difference. Result has 49 places, 30 transitions, 117 flow [2023-08-25 07:19:36,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=49, PETRI_TRANSITIONS=30} [2023-08-25 07:19:36,339 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -18 predicate places. [2023-08-25 07:19:36,339 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 117 flow [2023-08-25 07:19:36,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:19:36,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:19:36,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 07:19:36,340 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-08-25 07:19:36,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:19:36,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1395503598, now seen corresponding path program 8 times [2023-08-25 07:19:36,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:19:36,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388897643] [2023-08-25 07:19:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:19:36,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:19:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:19:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:19:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:19:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388897643] [2023-08-25 07:19:36,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388897643] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:19:36,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:19:36,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 07:19:36,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598910206] [2023-08-25 07:19:36,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:19:36,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 07:19:36,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:19:36,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 07:19:36,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 07:19:36,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 194 [2023-08-25 07:19:36,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 117 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:19:36,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 194 [2023-08-25 07:19:36,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:19:36,552 INFO L124 PetriNetUnfolderBase]: 101/198 cut-off events. [2023-08-25 07:19:36,552 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2023-08-25 07:19:36,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 198 events. 101/198 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 538 event pairs, 26 based on Foata normal form. 10/208 useless extension candidates. Maximal degree in co-relation 563. Up to 77 conditions per place. [2023-08-25 07:19:36,552 INFO L140 encePairwiseOnDemand]: 188/194 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2023-08-25 07:19:36,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 218 flow [2023-08-25 07:19:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 07:19:36,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 07:19:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 501 transitions. [2023-08-25 07:19:36,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36892488954344627 [2023-08-25 07:19:36,554 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 501 transitions. [2023-08-25 07:19:36,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 501 transitions. [2023-08-25 07:19:36,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:19:36,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 501 transitions. [2023-08-25 07:19:36,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 71.57142857142857) internal successors, (501), 7 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 194.0) internal successors, (1552), 8 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,558 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 194.0) internal successors, (1552), 8 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,558 INFO L175 Difference]: Start difference. First operand has 49 places, 30 transitions, 117 flow. Second operand 7 states and 501 transitions. [2023-08-25 07:19:36,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 218 flow [2023-08-25 07:19:36,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 181 flow, removed 10 selfloop flow, removed 9 redundant places. [2023-08-25 07:19:36,559 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-25 07:19:36,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-25 07:19:36,560 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -31 predicate places. [2023-08-25 07:19:36,560 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-25 07:19:36,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:19:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (65 of 66 remaining) [2023-08-25 07:19:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (64 of 66 remaining) [2023-08-25 07:19:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (63 of 66 remaining) [2023-08-25 07:19:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (62 of 66 remaining) [2023-08-25 07:19:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (61 of 66 remaining) [2023-08-25 07:19:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (60 of 66 remaining) [2023-08-25 07:19:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (59 of 66 remaining) [2023-08-25 07:19:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (58 of 66 remaining) [2023-08-25 07:19:36,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (57 of 66 remaining) [2023-08-25 07:19:36,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (56 of 66 remaining) [2023-08-25 07:19:36,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (55 of 66 remaining) [2023-08-25 07:19:36,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (54 of 66 remaining) [2023-08-25 07:19:36,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (53 of 66 remaining) [2023-08-25 07:19:36,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (52 of 66 remaining) [2023-08-25 07:19:36,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (51 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (50 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (49 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (48 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (47 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (46 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (45 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 66 remaining) [2023-08-25 07:19:36,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (43 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (42 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (41 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (40 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (39 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (38 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (37 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (36 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (32 of 66 remaining) [2023-08-25 07:19:36,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (26 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (25 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (24 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (23 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (21 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (20 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (19 of 66 remaining) [2023-08-25 07:19:36,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (18 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (17 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (16 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (15 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 66 remaining) [2023-08-25 07:19:36,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 66 remaining) [2023-08-25 07:19:36,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 66 remaining) [2023-08-25 07:19:36,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (3 of 66 remaining) [2023-08-25 07:19:36,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (2 of 66 remaining) [2023-08-25 07:19:36,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (1 of 66 remaining) [2023-08-25 07:19:36,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (0 of 66 remaining) [2023-08-25 07:19:36,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 07:19:36,570 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1] [2023-08-25 07:19:36,574 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:19:36,574 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:19:36,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:19:36 BasicIcfg [2023-08-25 07:19:36,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:19:36,576 INFO L158 Benchmark]: Toolchain (without parser) took 6066.35ms. Allocated memory was 379.6MB in the beginning and 490.7MB in the end (delta: 111.1MB). Free memory was 356.2MB in the beginning and 416.9MB in the end (delta: -60.6MB). Peak memory consumption was 51.1MB. Max. memory is 16.0GB. [2023-08-25 07:19:36,576 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 379.6MB. Free memory was 357.5MB in the beginning and 357.4MB in the end (delta: 93.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:19:36,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.07ms. Allocated memory is still 379.6MB. Free memory was 356.2MB in the beginning and 344.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 07:19:36,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.21ms. Allocated memory is still 379.6MB. Free memory was 344.5MB in the beginning and 342.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:19:36,578 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 379.6MB. Free memory was 342.4MB in the beginning and 340.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:19:36,578 INFO L158 Benchmark]: RCFGBuilder took 772.24ms. Allocated memory is still 379.6MB. Free memory was 340.9MB in the beginning and 303.8MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-25 07:19:36,579 INFO L158 Benchmark]: TraceAbstraction took 4947.12ms. Allocated memory was 379.6MB in the beginning and 490.7MB in the end (delta: 111.1MB). Free memory was 303.2MB in the beginning and 416.9MB in the end (delta: -113.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:19:36,579 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 379.6MB. Free memory was 357.5MB in the beginning and 357.4MB in the end (delta: 93.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 245.07ms. Allocated memory is still 379.6MB. Free memory was 356.2MB in the beginning and 344.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.21ms. Allocated memory is still 379.6MB. Free memory was 344.5MB in the beginning and 342.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 379.6MB. Free memory was 342.4MB in the beginning and 340.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 772.24ms. Allocated memory is still 379.6MB. Free memory was 340.9MB in the beginning and 303.8MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4947.12ms. Allocated memory was 379.6MB in the beginning and 490.7MB in the end (delta: 111.1MB). Free memory was 303.2MB in the beginning and 416.9MB in the end (delta: -113.7MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 119 PlacesBefore, 67 PlacesAfterwards, 113 TransitionsBefore, 60 TransitionsAfterwards, 3068 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 21393 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9840, independent: 9228, independent conditional: 0, independent unconditional: 9228, dependent: 612, dependent conditional: 0, dependent unconditional: 612, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1562, independent: 1517, independent conditional: 0, independent unconditional: 1517, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9840, independent: 7711, independent conditional: 0, independent unconditional: 7711, dependent: 567, dependent conditional: 0, dependent unconditional: 567, unknown: 1562, unknown conditional: 0, unknown unconditional: 1562] , Statistics on independence cache: Total cache size (in pairs): 660, Positive cache size: 618, Positive conditional cache size: 0, Positive unconditional cache size: 618, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 112]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 115]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 180 locations, 66 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 482 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 482 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1219 IncrementalHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 0 mSDtfsCounter, 1219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=6, InterpolantAutomatonStates: 49, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 808 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 07:19:36,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...