/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/chl-word-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:13:20,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:13:20,281 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 05:13:20,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:13:20,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:13:20,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:13:20,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:13:20,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:13:20,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:13:20,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:13:20,322 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:13:20,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:13:20,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:13:20,324 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:13:20,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:13:20,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:13:20,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:13:20,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:13:20,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:13:20,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:13:20,325 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:13:20,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:13:20,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:13:20,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:13:20,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:13:20,327 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:13:20,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:13:20,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:13:20,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:13:20,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:13:20,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:13:20,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:13:20,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:13:20,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:13:20,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:13:20,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:13:20,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:13:20,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:13:20,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:13:20,705 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:13:20,706 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:13:20,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-word-subst.wvr.c [2023-08-25 05:13:21,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:13:22,181 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:13:22,182 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-subst.wvr.c [2023-08-25 05:13:22,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946d48d04/4ccfac13c6204342bd13a8affdca0e8e/FLAG9eecfc9d3 [2023-08-25 05:13:22,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946d48d04/4ccfac13c6204342bd13a8affdca0e8e [2023-08-25 05:13:22,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:13:22,218 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:13:22,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:13:22,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:13:22,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:13:22,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5011a678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22, skipping insertion in model container [2023-08-25 05:13:22,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,257 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:13:22,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:13:22,501 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:13:22,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:13:22,561 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:13:22,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22 WrapperNode [2023-08-25 05:13:22,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:13:22,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:13:22,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:13:22,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:13:22,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,615 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 282 [2023-08-25 05:13:22,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:13:22,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:13:22,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:13:22,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:13:22,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:13:22,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:13:22,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:13:22,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:13:22,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (1/1) ... [2023-08-25 05:13:22,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:13:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:13:22,719 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 05:13:22,725 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 05:13:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:13:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:13:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:13:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:13:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:13:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:13:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:13:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:13:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:13:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:13:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:13:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 05:13:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:13:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:13:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:13:22,751 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 05:13:22,865 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:13:22,866 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:13:23,671 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:13:23,681 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:13:23,681 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-25 05:13:23,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:13:23 BoogieIcfgContainer [2023-08-25 05:13:23,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:13:23,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:13:23,685 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:13:23,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:13:23,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:13:22" (1/3) ... [2023-08-25 05:13:23,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126d5c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:13:23, skipping insertion in model container [2023-08-25 05:13:23,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:13:22" (2/3) ... [2023-08-25 05:13:23,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126d5c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:13:23, skipping insertion in model container [2023-08-25 05:13:23,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:13:23" (3/3) ... [2023-08-25 05:13:23,691 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2023-08-25 05:13:23,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:13:23,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2023-08-25 05:13:23,706 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:13:23,808 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 05:13:23,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 640 places, 663 transitions, 1350 flow [2023-08-25 05:13:24,120 INFO L124 PetriNetUnfolderBase]: 33/660 cut-off events. [2023-08-25 05:13:24,121 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:13:24,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 660 events. 33/660 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1764 event pairs, 0 based on Foata normal form. 0/546 useless extension candidates. Maximal degree in co-relation 477. Up to 3 conditions per place. [2023-08-25 05:13:24,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 640 places, 663 transitions, 1350 flow [2023-08-25 05:13:24,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 626 places, 649 transitions, 1316 flow [2023-08-25 05:13:24,161 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:13:24,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 626 places, 649 transitions, 1316 flow [2023-08-25 05:13:24,175 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 626 places, 649 transitions, 1316 flow [2023-08-25 05:13:24,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 626 places, 649 transitions, 1316 flow [2023-08-25 05:13:24,315 INFO L124 PetriNetUnfolderBase]: 33/649 cut-off events. [2023-08-25 05:13:24,316 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:13:24,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 649 events. 33/649 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1768 event pairs, 0 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 477. Up to 3 conditions per place. [2023-08-25 05:13:24,393 INFO L119 LiptonReduction]: Number of co-enabled transitions 91392 [2023-08-25 05:13:36,745 INFO L134 LiptonReduction]: Checked pairs total: 738457 [2023-08-25 05:13:36,745 INFO L136 LiptonReduction]: Total number of compositions: 553 [2023-08-25 05:13:36,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:13:36,763 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;@40f1bd3e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:13:36,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 141 error locations. [2023-08-25 05:13:36,765 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:13:36,765 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:13:36,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:13:36,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:13:36,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:13:36,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:13:36,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:13:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2359, now seen corresponding path program 1 times [2023-08-25 05:13:36,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:13:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413916454] [2023-08-25 05:13:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:13:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:13:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:13:36,850 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 05:13:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:13:36,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413916454] [2023-08-25 05:13:36,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413916454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:13:36,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:13:36,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:13:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157319740] [2023-08-25 05:13:36,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:13:36,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:13:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:13:36,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:13:36,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:13:36,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 1216 [2023-08-25 05:13:36,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 269 transitions, 556 flow. Second operand has 2 states, 2 states have (on average 642.5) internal successors, (1285), 2 states have internal predecessors, (1285), 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 05:13:36,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:13:36,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 1216 [2023-08-25 05:13:36,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:13:42,031 INFO L124 PetriNetUnfolderBase]: 18550/55794 cut-off events. [2023-08-25 05:13:42,031 INFO L125 PetriNetUnfolderBase]: For 814/814 co-relation queries the response was YES. [2023-08-25 05:13:42,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80541 conditions, 55794 events. 18550/55794 cut-off events. For 814/814 co-relation queries the response was YES. Maximal size of possible extension queue 1336. Compared 720402 event pairs, 12477 based on Foata normal form. 4514/48338 useless extension candidates. Maximal degree in co-relation 75045. Up to 24207 conditions per place. [2023-08-25 05:13:42,594 INFO L140 encePairwiseOnDemand]: 1184/1216 looper letters, 72 selfloop transitions, 0 changer transitions 0/237 dead transitions. [2023-08-25 05:13:42,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 237 transitions, 636 flow [2023-08-25 05:13:42,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:13:42,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:13:42,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1388 transitions. [2023-08-25 05:13:42,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707236842105263 [2023-08-25 05:13:42,617 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1388 transitions. [2023-08-25 05:13:42,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1388 transitions. [2023-08-25 05:13:42,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:13:42,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1388 transitions. [2023-08-25 05:13:42,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 694.0) internal successors, (1388), 2 states have internal predecessors, (1388), 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 05:13:42,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1216.0) internal successors, (3648), 3 states have internal predecessors, (3648), 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 05:13:42,645 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1216.0) internal successors, (3648), 3 states have internal predecessors, (3648), 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 05:13:42,647 INFO L175 Difference]: Start difference. First operand has 258 places, 269 transitions, 556 flow. Second operand 2 states and 1388 transitions. [2023-08-25 05:13:42,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 237 transitions, 636 flow [2023-08-25 05:13:42,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 237 transitions, 624 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 05:13:42,661 INFO L231 Difference]: Finished difference. Result has 224 places, 237 transitions, 480 flow [2023-08-25 05:13:42,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=480, PETRI_PLACES=224, PETRI_TRANSITIONS=237} [2023-08-25 05:13:42,667 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -34 predicate places. [2023-08-25 05:13:42,667 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 237 transitions, 480 flow [2023-08-25 05:13:42,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 642.5) internal successors, (1285), 2 states have internal predecessors, (1285), 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 05:13:42,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:13:42,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:13:42,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:13:42,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:13:42,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:13:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash -770415305, now seen corresponding path program 1 times [2023-08-25 05:13:42,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:13:42,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777584117] [2023-08-25 05:13:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:13:42,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:13:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:13:42,852 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 05:13:42,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:13:42,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777584117] [2023-08-25 05:13:42,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777584117] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:13:42,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:13:42,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:13:42,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812365288] [2023-08-25 05:13:42,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:13:42,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:13:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:13:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:13:42,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:13:42,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1216 [2023-08-25 05:13:42,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 237 transitions, 480 flow. Second operand has 3 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 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 05:13:42,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:13:42,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1216 [2023-08-25 05:13:42,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:13:47,574 INFO L124 PetriNetUnfolderBase]: 25904/72958 cut-off events. [2023-08-25 05:13:47,574 INFO L125 PetriNetUnfolderBase]: For 224/224 co-relation queries the response was YES. [2023-08-25 05:13:47,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107228 conditions, 72958 events. 25904/72958 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 1688. Compared 948626 event pairs, 13230 based on Foata normal form. 0/58899 useless extension candidates. Maximal degree in co-relation 107225. Up to 33971 conditions per place. [2023-08-25 05:13:48,097 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 103 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2023-08-25 05:13:48,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 261 transitions, 740 flow [2023-08-25 05:13:48,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:13:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:13:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1990 transitions. [2023-08-25 05:13:48,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5455043859649122 [2023-08-25 05:13:48,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1990 transitions. [2023-08-25 05:13:48,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1990 transitions. [2023-08-25 05:13:48,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:13:48,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1990 transitions. [2023-08-25 05:13:48,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 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 05:13:48,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:13:48,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:13:48,118 INFO L175 Difference]: Start difference. First operand has 224 places, 237 transitions, 480 flow. Second operand 3 states and 1990 transitions. [2023-08-25 05:13:48,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 261 transitions, 740 flow [2023-08-25 05:13:48,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 261 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:13:48,129 INFO L231 Difference]: Finished difference. Result has 223 places, 235 transitions, 486 flow [2023-08-25 05:13:48,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=223, PETRI_TRANSITIONS=235} [2023-08-25 05:13:48,130 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -35 predicate places. [2023-08-25 05:13:48,130 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 235 transitions, 486 flow [2023-08-25 05:13:48,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 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 05:13:48,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:13:48,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:13:48,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:13:48,133 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:13:48,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:13:48,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1634685351, now seen corresponding path program 1 times [2023-08-25 05:13:48,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:13:48,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204894370] [2023-08-25 05:13:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:13:48,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:13:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:13:48,221 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 05:13:48,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:13:48,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204894370] [2023-08-25 05:13:48,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204894370] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:13:48,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:13:48,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:13:48,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400012247] [2023-08-25 05:13:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:13:48,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:13:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:13:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:13:48,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:13:48,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1216 [2023-08-25 05:13:48,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 235 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 629.6666666666666) internal successors, (1889), 3 states have internal predecessors, (1889), 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 05:13:48,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:13:48,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1216 [2023-08-25 05:13:48,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:13:51,867 INFO L124 PetriNetUnfolderBase]: 24828/57240 cut-off events. [2023-08-25 05:13:51,867 INFO L125 PetriNetUnfolderBase]: For 1279/1279 co-relation queries the response was YES. [2023-08-25 05:13:52,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91200 conditions, 57240 events. 24828/57240 cut-off events. For 1279/1279 co-relation queries the response was YES. Maximal size of possible extension queue 1405. Compared 643800 event pairs, 5723 based on Foata normal form. 0/44765 useless extension candidates. Maximal degree in co-relation 91196. Up to 32296 conditions per place. [2023-08-25 05:13:52,349 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 103 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2023-08-25 05:13:52,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 257 transitions, 752 flow [2023-08-25 05:13:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:13:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:13:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1986 transitions. [2023-08-25 05:13:52,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5444078947368421 [2023-08-25 05:13:52,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1986 transitions. [2023-08-25 05:13:52,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1986 transitions. [2023-08-25 05:13:52,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:13:52,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1986 transitions. [2023-08-25 05:13:52,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.0) internal successors, (1986), 3 states have internal predecessors, (1986), 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 05:13:52,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:13:52,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:13:52,508 INFO L175 Difference]: Start difference. First operand has 223 places, 235 transitions, 486 flow. Second operand 3 states and 1986 transitions. [2023-08-25 05:13:52,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 257 transitions, 752 flow [2023-08-25 05:13:52,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 257 transitions, 752 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:13:52,530 INFO L231 Difference]: Finished difference. Result has 222 places, 233 transitions, 492 flow [2023-08-25 05:13:52,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=222, PETRI_TRANSITIONS=233} [2023-08-25 05:13:52,531 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -36 predicate places. [2023-08-25 05:13:52,532 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 233 transitions, 492 flow [2023-08-25 05:13:52,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 629.6666666666666) internal successors, (1889), 3 states have internal predecessors, (1889), 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 05:13:52,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:13:52,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:13:52,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:13:52,533 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:13:52,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:13:52,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1026043297, now seen corresponding path program 1 times [2023-08-25 05:13:52,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:13:52,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471877742] [2023-08-25 05:13:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:13:52,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:13:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:13:52,630 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 05:13:52,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:13:52,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471877742] [2023-08-25 05:13:52,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471877742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:13:52,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:13:52,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:13:52,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855315362] [2023-08-25 05:13:52,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:13:52,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:13:52,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:13:52,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:13:52,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:13:52,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 624 out of 1216 [2023-08-25 05:13:52,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 233 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 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 05:13:52,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:13:52,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 624 of 1216 [2023-08-25 05:13:52,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:13:57,420 INFO L124 PetriNetUnfolderBase]: 25276/71575 cut-off events. [2023-08-25 05:13:57,420 INFO L125 PetriNetUnfolderBase]: For 1744/1744 co-relation queries the response was YES. [2023-08-25 05:13:57,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106773 conditions, 71575 events. 25276/71575 cut-off events. For 1744/1744 co-relation queries the response was YES. Maximal size of possible extension queue 1692. Compared 927669 event pairs, 17165 based on Foata normal form. 0/57686 useless extension candidates. Maximal degree in co-relation 106768. Up to 33314 conditions per place. [2023-08-25 05:13:57,915 INFO L140 encePairwiseOnDemand]: 1211/1216 looper letters, 78 selfloop transitions, 1 changer transitions 0/229 dead transitions. [2023-08-25 05:13:57,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 229 transitions, 642 flow [2023-08-25 05:13:57,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:13:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:13:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1952 transitions. [2023-08-25 05:13:57,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2023-08-25 05:13:57,920 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1952 transitions. [2023-08-25 05:13:57,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1952 transitions. [2023-08-25 05:13:57,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:13:57,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1952 transitions. [2023-08-25 05:13:57,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 650.6666666666666) internal successors, (1952), 3 states have internal predecessors, (1952), 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 05:13:57,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:13:57,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:13:57,934 INFO L175 Difference]: Start difference. First operand has 222 places, 233 transitions, 492 flow. Second operand 3 states and 1952 transitions. [2023-08-25 05:13:57,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 229 transitions, 642 flow [2023-08-25 05:13:57,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 229 transitions, 642 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:13:57,938 INFO L231 Difference]: Finished difference. Result has 220 places, 229 transitions, 486 flow [2023-08-25 05:13:57,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=220, PETRI_TRANSITIONS=229} [2023-08-25 05:13:57,939 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -38 predicate places. [2023-08-25 05:13:57,939 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 229 transitions, 486 flow [2023-08-25 05:13:57,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 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 05:13:57,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:13:57,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:13:57,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:13:57,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:13:57,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:13:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash -918177038, now seen corresponding path program 1 times [2023-08-25 05:13:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:13:57,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21508272] [2023-08-25 05:13:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:13:57,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:13:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:13:58,020 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 05:13:58,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:13:58,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21508272] [2023-08-25 05:13:58,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21508272] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:13:58,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:13:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:13:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921883896] [2023-08-25 05:13:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:13:58,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:13:58,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:13:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:13:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:13:58,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1216 [2023-08-25 05:13:58,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 229 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 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 05:13:58,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:13:58,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1216 [2023-08-25 05:13:58,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:14:02,215 INFO L124 PetriNetUnfolderBase]: 25754/64053 cut-off events. [2023-08-25 05:14:02,216 INFO L125 PetriNetUnfolderBase]: For 1841/1841 co-relation queries the response was YES. [2023-08-25 05:14:02,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99923 conditions, 64053 events. 25754/64053 cut-off events. For 1841/1841 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 758685 event pairs, 6357 based on Foata normal form. 0/50933 useless extension candidates. Maximal degree in co-relation 99917. Up to 33472 conditions per place. [2023-08-25 05:14:02,617 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 106 selfloop transitions, 2 changer transitions 0/253 dead transitions. [2023-08-25 05:14:02,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 253 transitions, 767 flow [2023-08-25 05:14:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:14:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:14:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1987 transitions. [2023-08-25 05:14:02,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5446820175438597 [2023-08-25 05:14:02,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1987 transitions. [2023-08-25 05:14:02,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1987 transitions. [2023-08-25 05:14:02,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:14:02,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1987 transitions. [2023-08-25 05:14:02,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.3333333333334) internal successors, (1987), 3 states have internal predecessors, (1987), 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 05:14:02,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:14:02,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:14:02,632 INFO L175 Difference]: Start difference. First operand has 220 places, 229 transitions, 486 flow. Second operand 3 states and 1987 transitions. [2023-08-25 05:14:02,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 253 transitions, 767 flow [2023-08-25 05:14:02,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 253 transitions, 766 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:14:02,637 INFO L231 Difference]: Finished difference. Result has 218 places, 227 transitions, 491 flow [2023-08-25 05:14:02,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=218, PETRI_TRANSITIONS=227} [2023-08-25 05:14:02,638 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -40 predicate places. [2023-08-25 05:14:02,638 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 227 transitions, 491 flow [2023-08-25 05:14:02,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 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 05:14:02,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:14:02,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:14:02,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:14:02,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:14:02,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:14:02,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1814199824, now seen corresponding path program 1 times [2023-08-25 05:14:02,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:14:02,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868937296] [2023-08-25 05:14:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:14:02,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:14:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:14:02,700 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 05:14:02,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:14:02,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868937296] [2023-08-25 05:14:02,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868937296] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:14:02,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:14:02,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:14:02,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262765438] [2023-08-25 05:14:02,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:14:02,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:14:02,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:14:02,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:14:02,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:14:02,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 634 out of 1216 [2023-08-25 05:14:02,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 227 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 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 05:14:02,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:14:02,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 634 of 1216 [2023-08-25 05:14:02,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:14:07,121 INFO L124 PetriNetUnfolderBase]: 21617/62762 cut-off events. [2023-08-25 05:14:07,121 INFO L125 PetriNetUnfolderBase]: For 1523/1523 co-relation queries the response was YES. [2023-08-25 05:14:07,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93186 conditions, 62762 events. 21617/62762 cut-off events. For 1523/1523 co-relation queries the response was YES. Maximal size of possible extension queue 1444. Compared 803548 event pairs, 13150 based on Foata normal form. 0/50091 useless extension candidates. Maximal degree in co-relation 93180. Up to 26680 conditions per place. [2023-08-25 05:14:07,529 INFO L140 encePairwiseOnDemand]: 1213/1216 looper letters, 116 selfloop transitions, 2 changer transitions 0/270 dead transitions. [2023-08-25 05:14:07,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 270 transitions, 819 flow [2023-08-25 05:14:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:14:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:14:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2018 transitions. [2023-08-25 05:14:07,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531798245614035 [2023-08-25 05:14:07,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2018 transitions. [2023-08-25 05:14:07,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2018 transitions. [2023-08-25 05:14:07,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:14:07,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2018 transitions. [2023-08-25 05:14:07,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.6666666666666) internal successors, (2018), 3 states have internal predecessors, (2018), 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 05:14:07,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:14:07,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:14:07,544 INFO L175 Difference]: Start difference. First operand has 218 places, 227 transitions, 491 flow. Second operand 3 states and 2018 transitions. [2023-08-25 05:14:07,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 270 transitions, 819 flow [2023-08-25 05:14:07,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 270 transitions, 819 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:14:07,550 INFO L231 Difference]: Finished difference. Result has 221 places, 228 transitions, 503 flow [2023-08-25 05:14:07,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=503, PETRI_PLACES=221, PETRI_TRANSITIONS=228} [2023-08-25 05:14:07,551 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -37 predicate places. [2023-08-25 05:14:07,551 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 228 transitions, 503 flow [2023-08-25 05:14:07,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 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 05:14:07,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:14:07,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:14:07,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:14:07,553 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:14:07,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:14:07,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1814216452, now seen corresponding path program 1 times [2023-08-25 05:14:07,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:14:07,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576260158] [2023-08-25 05:14:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:14:07,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:14:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:14:07,582 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 05:14:07,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:14:07,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576260158] [2023-08-25 05:14:07,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576260158] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:14:07,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:14:07,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:14:07,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989228025] [2023-08-25 05:14:07,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:14:07,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:14:07,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:14:07,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:14:07,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:14:07,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 624 out of 1216 [2023-08-25 05:14:07,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 228 transitions, 503 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 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 05:14:07,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:14:07,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 624 of 1216 [2023-08-25 05:14:07,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:14:12,953 INFO L124 PetriNetUnfolderBase]: 26893/74762 cut-off events. [2023-08-25 05:14:12,953 INFO L125 PetriNetUnfolderBase]: For 4286/4286 co-relation queries the response was YES. [2023-08-25 05:14:13,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115110 conditions, 74762 events. 26893/74762 cut-off events. For 4286/4286 co-relation queries the response was YES. Maximal size of possible extension queue 1760. Compared 961405 event pairs, 18215 based on Foata normal form. 0/60756 useless extension candidates. Maximal degree in co-relation 115102. Up to 35600 conditions per place. [2023-08-25 05:14:13,416 INFO L140 encePairwiseOnDemand]: 1211/1216 looper letters, 79 selfloop transitions, 1 changer transitions 0/224 dead transitions. [2023-08-25 05:14:13,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 224 transitions, 655 flow [2023-08-25 05:14:13,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:14:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:14:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1952 transitions. [2023-08-25 05:14:13,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2023-08-25 05:14:13,420 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1952 transitions. [2023-08-25 05:14:13,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1952 transitions. [2023-08-25 05:14:13,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:14:13,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1952 transitions. [2023-08-25 05:14:13,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 650.6666666666666) internal successors, (1952), 3 states have internal predecessors, (1952), 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 05:14:13,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:14:13,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:14:13,429 INFO L175 Difference]: Start difference. First operand has 221 places, 228 transitions, 503 flow. Second operand 3 states and 1952 transitions. [2023-08-25 05:14:13,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 224 transitions, 655 flow [2023-08-25 05:14:13,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 224 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:14:13,438 INFO L231 Difference]: Finished difference. Result has 218 places, 224 transitions, 495 flow [2023-08-25 05:14:13,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=218, PETRI_TRANSITIONS=224} [2023-08-25 05:14:13,439 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -40 predicate places. [2023-08-25 05:14:13,439 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 224 transitions, 495 flow [2023-08-25 05:14:13,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 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 05:14:13,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:14:13,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:14:13,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:14:13,440 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:14:13,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:14:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1358228025, now seen corresponding path program 1 times [2023-08-25 05:14:13,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:14:13,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632832070] [2023-08-25 05:14:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:14:13,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:14:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:14:13,814 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 05:14:13,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:14:13,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632832070] [2023-08-25 05:14:13,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632832070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:14:13,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:14:13,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:14:13,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837802825] [2023-08-25 05:14:13,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:14:13,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:14:13,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:14:13,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:14:13,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:14:13,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 528 out of 1216 [2023-08-25 05:14:13,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 224 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 530.3333333333334) internal successors, (3182), 6 states have internal predecessors, (3182), 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 05:14:13,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:14:13,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 528 of 1216 [2023-08-25 05:14:13,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:15:55,324 INFO L124 PetriNetUnfolderBase]: 894837/1211815 cut-off events. [2023-08-25 05:15:55,324 INFO L125 PetriNetUnfolderBase]: For 47140/47140 co-relation queries the response was YES. [2023-08-25 05:15:59,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2454764 conditions, 1211815 events. 894837/1211815 cut-off events. For 47140/47140 co-relation queries the response was YES. Maximal size of possible extension queue 11999. Compared 9722279 event pairs, 91576 based on Foata normal form. 0/1010004 useless extension candidates. Maximal degree in co-relation 2454756. Up to 427765 conditions per place. [2023-08-25 05:16:03,746 INFO L140 encePairwiseOnDemand]: 1211/1216 looper letters, 634 selfloop transitions, 4 changer transitions 0/707 dead transitions. [2023-08-25 05:16:03,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 707 transitions, 2829 flow [2023-08-25 05:16:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:16:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:16:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3787 transitions. [2023-08-25 05:16:03,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5190515350877193 [2023-08-25 05:16:03,752 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3787 transitions. [2023-08-25 05:16:03,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3787 transitions. [2023-08-25 05:16:03,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:03,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3787 transitions. [2023-08-25 05:16:03,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 631.1666666666666) internal successors, (3787), 6 states have internal predecessors, (3787), 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 05:16:03,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1216.0) internal successors, (8512), 7 states have internal predecessors, (8512), 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 05:16:03,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1216.0) internal successors, (8512), 7 states have internal predecessors, (8512), 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 05:16:03,767 INFO L175 Difference]: Start difference. First operand has 218 places, 224 transitions, 495 flow. Second operand 6 states and 3787 transitions. [2023-08-25 05:16:03,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 707 transitions, 2829 flow [2023-08-25 05:16:03,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 707 transitions, 2828 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:16:03,831 INFO L231 Difference]: Finished difference. Result has 221 places, 223 transitions, 500 flow [2023-08-25 05:16:03,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=500, PETRI_PLACES=221, PETRI_TRANSITIONS=223} [2023-08-25 05:16:03,832 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -37 predicate places. [2023-08-25 05:16:03,832 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 223 transitions, 500 flow [2023-08-25 05:16:03,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 530.3333333333334) internal successors, (3182), 6 states have internal predecessors, (3182), 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 05:16:03,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:03,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:03,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:16:03,833 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:16:03,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:03,834 INFO L85 PathProgramCache]: Analyzing trace with hash 295207702, now seen corresponding path program 1 times [2023-08-25 05:16:03,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:03,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376348407] [2023-08-25 05:16:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:03,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:03,882 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 05:16:03,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:03,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376348407] [2023-08-25 05:16:03,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376348407] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:03,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:03,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:16:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326883159] [2023-08-25 05:16:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:03,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:03,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:03,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:03,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1216 [2023-08-25 05:16:03,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 223 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 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 05:16:03,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:03,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1216 [2023-08-25 05:16:03,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:10,883 INFO L124 PetriNetUnfolderBase]: 39249/97810 cut-off events. [2023-08-25 05:16:10,884 INFO L125 PetriNetUnfolderBase]: For 10566/10566 co-relation queries the response was YES. [2023-08-25 05:16:11,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162193 conditions, 97810 events. 39249/97810 cut-off events. For 10566/10566 co-relation queries the response was YES. Maximal size of possible extension queue 2336. Compared 1221259 event pairs, 9024 based on Foata normal form. 0/81691 useless extension candidates. Maximal degree in co-relation 162185. Up to 35549 conditions per place. [2023-08-25 05:16:11,536 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 136 selfloop transitions, 2 changer transitions 0/277 dead transitions. [2023-08-25 05:16:11,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 277 transitions, 908 flow [2023-08-25 05:16:11,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2017 transitions. [2023-08-25 05:16:11,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5529057017543859 [2023-08-25 05:16:11,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2017 transitions. [2023-08-25 05:16:11,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2017 transitions. [2023-08-25 05:16:11,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:11,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2017 transitions. [2023-08-25 05:16:11,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 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 05:16:11,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:11,548 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:11,549 INFO L175 Difference]: Start difference. First operand has 221 places, 223 transitions, 500 flow. Second operand 3 states and 2017 transitions. [2023-08-25 05:16:11,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 277 transitions, 908 flow [2023-08-25 05:16:11,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 277 transitions, 899 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:16:11,638 INFO L231 Difference]: Finished difference. Result has 216 places, 221 transitions, 501 flow [2023-08-25 05:16:11,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=501, PETRI_PLACES=216, PETRI_TRANSITIONS=221} [2023-08-25 05:16:11,639 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -42 predicate places. [2023-08-25 05:16:11,639 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 221 transitions, 501 flow [2023-08-25 05:16:11,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 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 05:16:11,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:11,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:11,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:16:11,640 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:16:11,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash 199066586, now seen corresponding path program 1 times [2023-08-25 05:16:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:11,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777270765] [2023-08-25 05:16:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:11,675 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 05:16:11,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:11,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777270765] [2023-08-25 05:16:11,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777270765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:11,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:11,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:16:11,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270442275] [2023-08-25 05:16:11,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:11,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:11,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:11,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:11,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:11,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 624 out of 1216 [2023-08-25 05:16:11,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 221 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 628.0) internal successors, (1884), 3 states have internal predecessors, (1884), 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 05:16:11,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:11,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 624 of 1216 [2023-08-25 05:16:11,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:18,855 INFO L124 PetriNetUnfolderBase]: 40573/99605 cut-off events. [2023-08-25 05:16:18,855 INFO L125 PetriNetUnfolderBase]: For 9455/9455 co-relation queries the response was YES. [2023-08-25 05:16:19,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163602 conditions, 99605 events. 40573/99605 cut-off events. For 9455/9455 co-relation queries the response was YES. Maximal size of possible extension queue 2639. Compared 1246263 event pairs, 27393 based on Foata normal form. 0/84440 useless extension candidates. Maximal degree in co-relation 163594. Up to 53794 conditions per place. [2023-08-25 05:16:19,548 INFO L140 encePairwiseOnDemand]: 1211/1216 looper letters, 80 selfloop transitions, 1 changer transitions 0/217 dead transitions. [2023-08-25 05:16:19,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 217 transitions, 655 flow [2023-08-25 05:16:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:19,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:19,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1951 transitions. [2023-08-25 05:16:19,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348135964912281 [2023-08-25 05:16:19,552 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1951 transitions. [2023-08-25 05:16:19,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1951 transitions. [2023-08-25 05:16:19,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:19,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1951 transitions. [2023-08-25 05:16:19,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 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 05:16:19,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:19,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:19,560 INFO L175 Difference]: Start difference. First operand has 216 places, 221 transitions, 501 flow. Second operand 3 states and 1951 transitions. [2023-08-25 05:16:19,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 217 transitions, 655 flow [2023-08-25 05:16:19,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 217 transitions, 655 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:16:19,570 INFO L231 Difference]: Finished difference. Result has 214 places, 217 transitions, 495 flow [2023-08-25 05:16:19,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=214, PETRI_TRANSITIONS=217} [2023-08-25 05:16:19,571 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -44 predicate places. [2023-08-25 05:16:19,571 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 217 transitions, 495 flow [2023-08-25 05:16:19,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 628.0) internal successors, (1884), 3 states have internal predecessors, (1884), 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 05:16:19,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:19,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:19,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:16:19,572 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:16:19,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1483417999, now seen corresponding path program 1 times [2023-08-25 05:16:19,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:19,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925100865] [2023-08-25 05:16:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:19,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:19,608 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 05:16:19,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:19,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925100865] [2023-08-25 05:16:19,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925100865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:19,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:19,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:16:19,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565374386] [2023-08-25 05:16:19,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:19,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:19,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:19,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:19,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:19,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 634 out of 1216 [2023-08-25 05:16:19,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 217 transitions, 495 flow. Second operand has 3 states, 3 states have (on average 638.3333333333334) internal successors, (1915), 3 states have internal predecessors, (1915), 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 05:16:19,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:19,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 634 of 1216 [2023-08-25 05:16:19,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:25,854 INFO L124 PetriNetUnfolderBase]: 34785/86898 cut-off events. [2023-08-25 05:16:25,855 INFO L125 PetriNetUnfolderBase]: For 8211/8211 co-relation queries the response was YES. [2023-08-25 05:16:26,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141923 conditions, 86898 events. 34785/86898 cut-off events. For 8211/8211 co-relation queries the response was YES. Maximal size of possible extension queue 2233. Compared 1072601 event pairs, 21715 based on Foata normal form. 0/73285 useless extension candidates. Maximal degree in co-relation 141914. Up to 43649 conditions per place. [2023-08-25 05:16:26,516 INFO L140 encePairwiseOnDemand]: 1213/1216 looper letters, 119 selfloop transitions, 2 changer transitions 0/260 dead transitions. [2023-08-25 05:16:26,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 260 transitions, 855 flow [2023-08-25 05:16:26,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:26,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2023-08-25 05:16:26,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5518092105263158 [2023-08-25 05:16:26,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2013 transitions. [2023-08-25 05:16:26,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2013 transitions. [2023-08-25 05:16:26,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:26,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2013 transitions. [2023-08-25 05:16:26,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 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 05:16:26,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:26,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:26,527 INFO L175 Difference]: Start difference. First operand has 214 places, 217 transitions, 495 flow. Second operand 3 states and 2013 transitions. [2023-08-25 05:16:26,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 260 transitions, 855 flow [2023-08-25 05:16:26,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 260 transitions, 854 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:16:26,537 INFO L231 Difference]: Finished difference. Result has 216 places, 218 transitions, 506 flow [2023-08-25 05:16:26,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=216, PETRI_TRANSITIONS=218} [2023-08-25 05:16:26,538 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -42 predicate places. [2023-08-25 05:16:26,538 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 218 transitions, 506 flow [2023-08-25 05:16:26,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 638.3333333333334) internal successors, (1915), 3 states have internal predecessors, (1915), 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 05:16:26,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:26,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:26,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 05:16:26,539 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:16:26,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:26,540 INFO L85 PathProgramCache]: Analyzing trace with hash 194504998, now seen corresponding path program 1 times [2023-08-25 05:16:26,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:26,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619035439] [2023-08-25 05:16:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:26,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:26,573 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 05:16:26,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:26,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619035439] [2023-08-25 05:16:26,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619035439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:26,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:26,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:16:26,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387894779] [2023-08-25 05:16:26,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:26,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:26,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:26,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:26,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:26,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1216 [2023-08-25 05:16:26,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 218 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 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 05:16:26,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:26,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1216 [2023-08-25 05:16:26,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:34,971 INFO L124 PetriNetUnfolderBase]: 56733/117466 cut-off events. [2023-08-25 05:16:34,971 INFO L125 PetriNetUnfolderBase]: For 16200/16200 co-relation queries the response was YES. [2023-08-25 05:16:35,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212006 conditions, 117466 events. 56733/117466 cut-off events. For 16200/16200 co-relation queries the response was YES. Maximal size of possible extension queue 3403. Compared 1328053 event pairs, 12911 based on Foata normal form. 0/101426 useless extension candidates. Maximal degree in co-relation 211996. Up to 52556 conditions per place. [2023-08-25 05:16:35,929 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 141 selfloop transitions, 2 changer transitions 0/273 dead transitions. [2023-08-25 05:16:35,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 273 transitions, 949 flow [2023-08-25 05:16:35,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:35,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2015 transitions. [2023-08-25 05:16:35,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5523574561403509 [2023-08-25 05:16:35,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2015 transitions. [2023-08-25 05:16:35,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2015 transitions. [2023-08-25 05:16:35,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:35,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2015 transitions. [2023-08-25 05:16:35,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.6666666666666) internal successors, (2015), 3 states have internal predecessors, (2015), 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 05:16:35,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:35,940 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:16:35,941 INFO L175 Difference]: Start difference. First operand has 216 places, 218 transitions, 506 flow. Second operand 3 states and 2015 transitions. [2023-08-25 05:16:35,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 273 transitions, 949 flow [2023-08-25 05:16:36,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 273 transitions, 945 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:16:36,130 INFO L231 Difference]: Finished difference. Result has 214 places, 216 transitions, 512 flow [2023-08-25 05:16:36,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=214, PETRI_TRANSITIONS=216} [2023-08-25 05:16:36,131 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -44 predicate places. [2023-08-25 05:16:36,131 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 216 transitions, 512 flow [2023-08-25 05:16:36,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 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 05:16:36,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:36,131 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] [2023-08-25 05:16:36,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 05:16:36,132 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:16:36,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:36,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2120183228, now seen corresponding path program 1 times [2023-08-25 05:16:36,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:36,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693914178] [2023-08-25 05:16:36,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:36,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:36,232 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 05:16:36,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:36,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693914178] [2023-08-25 05:16:36,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693914178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:36,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:36,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:16:36,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130687435] [2023-08-25 05:16:36,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:36,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:16:36,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:36,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:16:36,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:16:36,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 548 out of 1216 [2023-08-25 05:16:36,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 216 transitions, 512 flow. Second operand has 5 states, 5 states have (on average 551.2) internal successors, (2756), 5 states have internal predecessors, (2756), 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 05:16:36,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:36,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 548 of 1216 [2023-08-25 05:16:36,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:55,758 INFO L124 PetriNetUnfolderBase]: 122957/250220 cut-off events. [2023-08-25 05:16:55,759 INFO L125 PetriNetUnfolderBase]: For 29500/29500 co-relation queries the response was YES. [2023-08-25 05:16:57,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451624 conditions, 250220 events. 122957/250220 cut-off events. For 29500/29500 co-relation queries the response was YES. Maximal size of possible extension queue 5565. Compared 3032786 event pairs, 81512 based on Foata normal form. 1022/216110 useless extension candidates. Maximal degree in co-relation 451614. Up to 123593 conditions per place. [2023-08-25 05:16:58,117 INFO L140 encePairwiseOnDemand]: 1206/1216 looper letters, 216 selfloop transitions, 9 changer transitions 0/335 dead transitions. [2023-08-25 05:16:58,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 335 transitions, 1274 flow [2023-08-25 05:16:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:16:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:16:58,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3497 transitions. [2023-08-25 05:16:58,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47930372807017546 [2023-08-25 05:16:58,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3497 transitions. [2023-08-25 05:16:58,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3497 transitions. [2023-08-25 05:16:58,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:58,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3497 transitions. [2023-08-25 05:16:58,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 582.8333333333334) internal successors, (3497), 6 states have internal predecessors, (3497), 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 05:16:58,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1216.0) internal successors, (8512), 7 states have internal predecessors, (8512), 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 05:16:58,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1216.0) internal successors, (8512), 7 states have internal predecessors, (8512), 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 05:16:58,132 INFO L175 Difference]: Start difference. First operand has 214 places, 216 transitions, 512 flow. Second operand 6 states and 3497 transitions. [2023-08-25 05:16:58,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 335 transitions, 1274 flow [2023-08-25 05:16:59,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 335 transitions, 1274 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:16:59,120 INFO L231 Difference]: Finished difference. Result has 223 places, 224 transitions, 584 flow [2023-08-25 05:16:59,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=223, PETRI_TRANSITIONS=224} [2023-08-25 05:16:59,121 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -35 predicate places. [2023-08-25 05:16:59,121 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 224 transitions, 584 flow [2023-08-25 05:16:59,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 551.2) internal successors, (2756), 5 states have internal predecessors, (2756), 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 05:16:59,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:59,122 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] [2023-08-25 05:16:59,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 05:16:59,122 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:16:59,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash -668882128, now seen corresponding path program 1 times [2023-08-25 05:16:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233702962] [2023-08-25 05:16:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:59,153 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 05:16:59,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:59,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233702962] [2023-08-25 05:16:59,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233702962] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:59,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:59,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:16:59,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460625545] [2023-08-25 05:16:59,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:59,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:59,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:59,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:59,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:59,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 634 out of 1216 [2023-08-25 05:16:59,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 224 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 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 05:16:59,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:59,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 634 of 1216 [2023-08-25 05:16:59,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:17:15,032 INFO L124 PetriNetUnfolderBase]: 87243/195853 cut-off events. [2023-08-25 05:17:15,032 INFO L125 PetriNetUnfolderBase]: For 38468/38588 co-relation queries the response was YES. [2023-08-25 05:17:16,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351932 conditions, 195853 events. 87243/195853 cut-off events. For 38468/38588 co-relation queries the response was YES. Maximal size of possible extension queue 5034. Compared 2491468 event pairs, 52977 based on Foata normal form. 2604/173054 useless extension candidates. Maximal degree in co-relation 351917. Up to 106117 conditions per place. [2023-08-25 05:17:16,843 INFO L140 encePairwiseOnDemand]: 1213/1216 looper letters, 136 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2023-08-25 05:17:16,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 274 transitions, 1015 flow [2023-08-25 05:17:16,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:17:16,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:17:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2018 transitions. [2023-08-25 05:17:16,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531798245614035 [2023-08-25 05:17:16,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2018 transitions. [2023-08-25 05:17:16,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2018 transitions. [2023-08-25 05:17:16,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:17:16,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2018 transitions. [2023-08-25 05:17:16,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.6666666666666) internal successors, (2018), 3 states have internal predecessors, (2018), 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 05:17:16,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:17:16,852 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1216.0) internal successors, (4864), 4 states have internal predecessors, (4864), 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 05:17:16,852 INFO L175 Difference]: Start difference. First operand has 223 places, 224 transitions, 584 flow. Second operand 3 states and 2018 transitions. [2023-08-25 05:17:16,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 274 transitions, 1015 flow [2023-08-25 05:17:17,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 274 transitions, 1011 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 05:17:17,098 INFO L231 Difference]: Finished difference. Result has 225 places, 225 transitions, 594 flow [2023-08-25 05:17:17,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=594, PETRI_PLACES=225, PETRI_TRANSITIONS=225} [2023-08-25 05:17:17,099 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -33 predicate places. [2023-08-25 05:17:17,099 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 225 transitions, 594 flow [2023-08-25 05:17:17,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 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 05:17:17,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:17:17,100 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] [2023-08-25 05:17:17,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 05:17:17,100 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:17:17,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:17:17,101 INFO L85 PathProgramCache]: Analyzing trace with hash 518854971, now seen corresponding path program 1 times [2023-08-25 05:17:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:17:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180689126] [2023-08-25 05:17:17,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:17:17,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:17:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:17:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:17:17,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:17:17,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180689126] [2023-08-25 05:17:17,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180689126] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:17:17,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:17:17,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:17:17,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094082278] [2023-08-25 05:17:17,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:17:17,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:17:17,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:17:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:17:17,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:17:17,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 1216 [2023-08-25 05:17:17,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 225 transitions, 594 flow. Second operand has 6 states, 6 states have (on average 544.8333333333334) internal successors, (3269), 6 states have internal predecessors, (3269), 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 05:17:17,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:17:17,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 1216 [2023-08-25 05:17:17,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:17:56,119 INFO L124 PetriNetUnfolderBase]: 206490/418833 cut-off events. [2023-08-25 05:17:56,119 INFO L125 PetriNetUnfolderBase]: For 110485/110485 co-relation queries the response was YES. [2023-08-25 05:17:59,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806730 conditions, 418833 events. 206490/418833 cut-off events. For 110485/110485 co-relation queries the response was YES. Maximal size of possible extension queue 9370. Compared 5368425 event pairs, 129200 based on Foata normal form. 1130/370340 useless extension candidates. Maximal degree in co-relation 806714. Up to 177602 conditions per place. [2023-08-25 05:18:00,541 INFO L140 encePairwiseOnDemand]: 1206/1216 looper letters, 269 selfloop transitions, 16 changer transitions 0/395 dead transitions. [2023-08-25 05:18:00,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 395 transitions, 1676 flow [2023-08-25 05:18:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:18:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:18:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4043 transitions. [2023-08-25 05:18:00,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4749765037593985 [2023-08-25 05:18:00,547 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4043 transitions. [2023-08-25 05:18:00,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4043 transitions. [2023-08-25 05:18:00,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:18:00,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4043 transitions. [2023-08-25 05:18:00,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 577.5714285714286) internal successors, (4043), 7 states have internal predecessors, (4043), 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 05:18:00,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1216.0) internal successors, (9728), 8 states have internal predecessors, (9728), 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 05:18:00,556 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1216.0) internal successors, (9728), 8 states have internal predecessors, (9728), 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 05:18:00,556 INFO L175 Difference]: Start difference. First operand has 225 places, 225 transitions, 594 flow. Second operand 7 states and 4043 transitions. [2023-08-25 05:18:00,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 395 transitions, 1676 flow [2023-08-25 05:18:06,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 395 transitions, 1668 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:18:06,341 INFO L231 Difference]: Finished difference. Result has 235 places, 238 transitions, 745 flow [2023-08-25 05:18:06,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=745, PETRI_PLACES=235, PETRI_TRANSITIONS=238} [2023-08-25 05:18:06,342 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -23 predicate places. [2023-08-25 05:18:06,342 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 238 transitions, 745 flow [2023-08-25 05:18:06,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 544.8333333333334) internal successors, (3269), 6 states have internal predecessors, (3269), 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 05:18:06,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:18:06,343 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] [2023-08-25 05:18:06,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 05:18:06,343 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:18:06,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:18:06,343 INFO L85 PathProgramCache]: Analyzing trace with hash -857705767, now seen corresponding path program 1 times [2023-08-25 05:18:06,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:18:06,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468796159] [2023-08-25 05:18:06,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:18:06,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:18:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:18:06,436 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 05:18:06,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:18:06,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468796159] [2023-08-25 05:18:06,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468796159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:18:06,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:18:06,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:18:06,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332538911] [2023-08-25 05:18:06,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:18:06,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:18:06,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:18:06,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:18:06,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:18:06,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 548 out of 1216 [2023-08-25 05:18:06,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 238 transitions, 745 flow. Second operand has 5 states, 5 states have (on average 551.6) internal successors, (2758), 5 states have internal predecessors, (2758), 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 05:18:06,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:18:06,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 548 of 1216 [2023-08-25 05:18:06,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:18:46,099 INFO L124 PetriNetUnfolderBase]: 233311/406938 cut-off events. [2023-08-25 05:18:46,099 INFO L125 PetriNetUnfolderBase]: For 227024/227258 co-relation queries the response was YES. [2023-08-25 05:18:49,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 877284 conditions, 406938 events. 233311/406938 cut-off events. For 227024/227258 co-relation queries the response was YES. Maximal size of possible extension queue 7843. Compared 4454397 event pairs, 161553 based on Foata normal form. 1086/360196 useless extension candidates. Maximal degree in co-relation 877263. Up to 277821 conditions per place. [2023-08-25 05:18:52,350 INFO L140 encePairwiseOnDemand]: 1209/1216 looper letters, 220 selfloop transitions, 8 changer transitions 0/338 dead transitions. [2023-08-25 05:18:52,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 338 transitions, 1536 flow [2023-08-25 05:18:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:18:52,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:18:52,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3479 transitions. [2023-08-25 05:18:52,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47683662280701755 [2023-08-25 05:18:52,356 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3479 transitions. [2023-08-25 05:18:52,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3479 transitions. [2023-08-25 05:18:52,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:18:52,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3479 transitions. [2023-08-25 05:18:52,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 579.8333333333334) internal successors, (3479), 6 states have internal predecessors, (3479), 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 05:18:52,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1216.0) internal successors, (8512), 7 states have internal predecessors, (8512), 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 05:18:52,367 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1216.0) internal successors, (8512), 7 states have internal predecessors, (8512), 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 05:18:52,367 INFO L175 Difference]: Start difference. First operand has 235 places, 238 transitions, 745 flow. Second operand 6 states and 3479 transitions. [2023-08-25 05:18:52,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 338 transitions, 1536 flow [2023-08-25 05:18:56,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 338 transitions, 1520 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 05:18:56,063 INFO L231 Difference]: Finished difference. Result has 242 places, 241 transitions, 778 flow [2023-08-25 05:18:56,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=778, PETRI_PLACES=242, PETRI_TRANSITIONS=241} [2023-08-25 05:18:56,064 INFO L281 CegarLoopForPetriNet]: 258 programPoint places, -16 predicate places. [2023-08-25 05:18:56,064 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 241 transitions, 778 flow [2023-08-25 05:18:56,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 551.6) internal successors, (2758), 5 states have internal predecessors, (2758), 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 05:18:56,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:18:56,065 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] [2023-08-25 05:18:56,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 05:18:56,065 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 137 more)] === [2023-08-25 05:18:56,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:18:56,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1853112436, now seen corresponding path program 1 times [2023-08-25 05:18:56,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:18:56,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295268178] [2023-08-25 05:18:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:18:56,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:18:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:18:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:18:56,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:18:56,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295268178] [2023-08-25 05:18:56,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295268178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:18:56,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:18:56,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:18:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533064087] [2023-08-25 05:18:56,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:18:56,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:18:56,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:18:56,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:18:56,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:18:56,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 520 out of 1216 [2023-08-25 05:18:56,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 241 transitions, 778 flow. Second operand has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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 05:18:56,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:18:56,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 520 of 1216 [2023-08-25 05:18:56,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand