/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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-nzb-file-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:18:48,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:18:48,683 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 19:18:48,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:18:48,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:18:48,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:18:48,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:18:48,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:18:48,711 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:18:48,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:18:48,714 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:18:48,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:18:48,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:18:48,715 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:18:48,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:18:48,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:18:48,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:18:48,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:18:48,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:18:48,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:18:48,716 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:18:48,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:18:48,717 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:18:48,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:18:48,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:18:48,718 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:18:48,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:18:48,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:18:48,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:18:48,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:18:48,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:18:48,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:18:48,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:18:48,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:18:48,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:18:48,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:18:48,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:18:48,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:18:48,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:18:48,948 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:18:48,952 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:18:48,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-25 19:18:49,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:18:50,073 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:18:50,073 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-25 19:18:50,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc0fc477/dca1e80d13e34abd97d9b51e7d41e2d1/FLAG268aab9ca [2023-08-25 19:18:50,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc0fc477/dca1e80d13e34abd97d9b51e7d41e2d1 [2023-08-25 19:18:50,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:18:50,097 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:18:50,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:18:50,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:18:50,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:18:50,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff573f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50, skipping insertion in model container [2023-08-25 19:18:50,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,129 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:18:50,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:18:50,314 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:18:50,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:18:50,375 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:18:50,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50 WrapperNode [2023-08-25 19:18:50,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:18:50,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:18:50,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:18:50,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:18:50,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,434 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 904 [2023-08-25 19:18:50,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:18:50,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:18:50,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:18:50,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:18:50,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:18:50,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:18:50,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:18:50,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:18:50,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (1/1) ... [2023-08-25 19:18:50,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:18:50,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:18:50,514 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 19:18:50,521 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 19:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:18:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:18:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 19:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:18:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:18:50,556 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 19:18:50,684 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:18:50,685 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:18:51,468 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:18:51,477 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:18:51,477 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 19:18:51,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:18:51 BoogieIcfgContainer [2023-08-25 19:18:51,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:18:51,480 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:18:51,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:18:51,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:18:51,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:18:50" (1/3) ... [2023-08-25 19:18:51,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124f9725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:18:51, skipping insertion in model container [2023-08-25 19:18:51,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:18:50" (2/3) ... [2023-08-25 19:18:51,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124f9725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:18:51, skipping insertion in model container [2023-08-25 19:18:51,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:18:51" (3/3) ... [2023-08-25 19:18:51,484 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2023-08-25 19:18:51,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:18:51,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 155 error locations. [2023-08-25 19:18:51,494 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:18:51,616 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 19:18:51,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1088 places, 1156 transitions, 2328 flow [2023-08-25 19:18:52,089 INFO L124 PetriNetUnfolderBase]: 75/1154 cut-off events. [2023-08-25 19:18:52,090 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:18:52,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 1154 events. 75/1154 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4075 event pairs, 0 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-25 19:18:52,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 1088 places, 1156 transitions, 2328 flow [2023-08-25 19:18:52,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1077 places, 1145 transitions, 2302 flow [2023-08-25 19:18:52,145 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:18:52,154 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1077 places, 1145 transitions, 2302 flow [2023-08-25 19:18:52,158 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1077 places, 1145 transitions, 2302 flow [2023-08-25 19:18:52,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1077 places, 1145 transitions, 2302 flow [2023-08-25 19:18:52,411 INFO L124 PetriNetUnfolderBase]: 75/1145 cut-off events. [2023-08-25 19:18:52,412 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:18:52,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 1145 events. 75/1145 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4020 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-25 19:18:52,499 INFO L119 LiptonReduction]: Number of co-enabled transitions 403556 [2023-08-25 19:19:11,781 INFO L134 LiptonReduction]: Checked pairs total: 1062414 [2023-08-25 19:19:11,782 INFO L136 LiptonReduction]: Total number of compositions: 1286 [2023-08-25 19:19:11,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:19:11,795 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;@31238eb1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:19:11,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 289 error locations. [2023-08-25 19:19:11,796 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:19:11,796 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:19:11,797 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:19:11,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:11,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:19:11,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:11,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash 4765, now seen corresponding path program 1 times [2023-08-25 19:19:11,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:11,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378490452] [2023-08-25 19:19:11,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:11,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:11,864 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 19:19:11,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:11,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378490452] [2023-08-25 19:19:11,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378490452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:11,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:11,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:19:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394260732] [2023-08-25 19:19:11,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:11,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:19:11,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:11,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:19:11,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:19:11,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1126 out of 2442 [2023-08-25 19:19:11,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 330 transitions, 672 flow. Second operand has 2 states, 2 states have (on average 1126.5) internal successors, (2253), 2 states have internal predecessors, (2253), 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 19:19:11,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:11,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1126 of 2442 [2023-08-25 19:19:11,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:13,145 INFO L124 PetriNetUnfolderBase]: 9990/19699 cut-off events. [2023-08-25 19:19:13,145 INFO L125 PetriNetUnfolderBase]: For 182/221 co-relation queries the response was YES. [2023-08-25 19:19:13,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34836 conditions, 19699 events. 9990/19699 cut-off events. For 182/221 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 162751 event pairs, 7188 based on Foata normal form. 292/16678 useless extension candidates. Maximal degree in co-relation 34119. Up to 14986 conditions per place. [2023-08-25 19:19:13,244 INFO L140 encePairwiseOnDemand]: 2345/2442 looper letters, 137 selfloop transitions, 0 changer transitions 0/233 dead transitions. [2023-08-25 19:19:13,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 233 transitions, 752 flow [2023-08-25 19:19:13,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:19:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:19:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2486 transitions. [2023-08-25 19:19:13,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509009009009009 [2023-08-25 19:19:13,259 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2486 transitions. [2023-08-25 19:19:13,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2486 transitions. [2023-08-25 19:19:13,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:13,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2486 transitions. [2023-08-25 19:19:13,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1243.0) internal successors, (2486), 2 states have internal predecessors, (2486), 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 19:19:13,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2442.0) internal successors, (7326), 3 states have internal predecessors, (7326), 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 19:19:13,285 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2442.0) internal successors, (7326), 3 states have internal predecessors, (7326), 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 19:19:13,287 INFO L175 Difference]: Start difference. First operand has 304 places, 330 transitions, 672 flow. Second operand 2 states and 2486 transitions. [2023-08-25 19:19:13,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 233 transitions, 752 flow [2023-08-25 19:19:13,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 233 transitions, 744 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:19:13,295 INFO L231 Difference]: Finished difference. Result has 207 places, 233 transitions, 470 flow [2023-08-25 19:19:13,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=470, PETRI_PLACES=207, PETRI_TRANSITIONS=233} [2023-08-25 19:19:13,300 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -97 predicate places. [2023-08-25 19:19:13,300 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 233 transitions, 470 flow [2023-08-25 19:19:13,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1126.5) internal successors, (2253), 2 states have internal predecessors, (2253), 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 19:19:13,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:13,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:19:13,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:19:13,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:13,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:13,307 INFO L85 PathProgramCache]: Analyzing trace with hash 463744578, now seen corresponding path program 1 times [2023-08-25 19:19:13,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:13,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161775333] [2023-08-25 19:19:13,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:13,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:13,506 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 19:19:13,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:13,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161775333] [2023-08-25 19:19:13,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161775333] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:13,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:13,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:19:13,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473640711] [2023-08-25 19:19:13,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:13,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:13,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:13,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:13,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:13,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 2442 [2023-08-25 19:19:13,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 233 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 1099.6666666666667) internal successors, (3299), 3 states have internal predecessors, (3299), 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 19:19:13,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:13,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 2442 [2023-08-25 19:19:13,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:14,555 INFO L124 PetriNetUnfolderBase]: 9990/19757 cut-off events. [2023-08-25 19:19:14,555 INFO L125 PetriNetUnfolderBase]: For 44/104 co-relation queries the response was YES. [2023-08-25 19:19:14,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34795 conditions, 19757 events. 9990/19757 cut-off events. For 44/104 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 163574 event pairs, 7188 based on Foata normal form. 0/16430 useless extension candidates. Maximal degree in co-relation 34792. Up to 14986 conditions per place. [2023-08-25 19:19:14,624 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 135 selfloop transitions, 4 changer transitions 0/235 dead transitions. [2023-08-25 19:19:14,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 235 transitions, 752 flow [2023-08-25 19:19:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:14,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3435 transitions. [2023-08-25 19:19:14,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4688779688779689 [2023-08-25 19:19:14,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3435 transitions. [2023-08-25 19:19:14,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3435 transitions. [2023-08-25 19:19:14,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:14,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3435 transitions. [2023-08-25 19:19:14,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1145.0) internal successors, (3435), 3 states have internal predecessors, (3435), 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 19:19:14,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:14,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:14,649 INFO L175 Difference]: Start difference. First operand has 207 places, 233 transitions, 470 flow. Second operand 3 states and 3435 transitions. [2023-08-25 19:19:14,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 235 transitions, 752 flow [2023-08-25 19:19:14,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 235 transitions, 752 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:19:14,653 INFO L231 Difference]: Finished difference. Result has 210 places, 235 transitions, 492 flow [2023-08-25 19:19:14,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=210, PETRI_TRANSITIONS=235} [2023-08-25 19:19:14,654 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -94 predicate places. [2023-08-25 19:19:14,654 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 235 transitions, 492 flow [2023-08-25 19:19:14,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1099.6666666666667) internal successors, (3299), 3 states have internal predecessors, (3299), 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 19:19:14,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:14,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:14,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:19:14,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:14,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 998524082, now seen corresponding path program 1 times [2023-08-25 19:19:14,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:14,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139075633] [2023-08-25 19:19:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:14,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:14,710 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 19:19:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139075633] [2023-08-25 19:19:14,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139075633] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:14,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:14,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:19:14,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147455038] [2023-08-25 19:19:14,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:14,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:14,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:14,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:14,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:14,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-25 19:19:14,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 235 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 1101.6666666666667) internal successors, (3305), 3 states have internal predecessors, (3305), 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 19:19:14,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:14,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-25 19:19:14,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:15,760 INFO L124 PetriNetUnfolderBase]: 10384/20127 cut-off events. [2023-08-25 19:19:15,760 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 19:19:15,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35782 conditions, 20127 events. 10384/20127 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 164796 event pairs, 3434 based on Foata normal form. 0/16774 useless extension candidates. Maximal degree in co-relation 35777. Up to 15536 conditions per place. [2023-08-25 19:19:15,838 INFO L140 encePairwiseOnDemand]: 2428/2442 looper letters, 160 selfloop transitions, 6 changer transitions 0/252 dead transitions. [2023-08-25 19:19:15,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 252 transitions, 859 flow [2023-08-25 19:19:15,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:15,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2023-08-25 19:19:15,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47351897351897354 [2023-08-25 19:19:15,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3469 transitions. [2023-08-25 19:19:15,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3469 transitions. [2023-08-25 19:19:15,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:15,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3469 transitions. [2023-08-25 19:19:15,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1156.3333333333333) internal successors, (3469), 3 states have internal predecessors, (3469), 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 19:19:15,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:15,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:15,863 INFO L175 Difference]: Start difference. First operand has 210 places, 235 transitions, 492 flow. Second operand 3 states and 3469 transitions. [2023-08-25 19:19:15,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 252 transitions, 859 flow [2023-08-25 19:19:15,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 252 transitions, 855 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:19:15,867 INFO L231 Difference]: Finished difference. Result has 204 places, 233 transitions, 514 flow [2023-08-25 19:19:15,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=204, PETRI_TRANSITIONS=233} [2023-08-25 19:19:15,868 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-25 19:19:15,868 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 233 transitions, 514 flow [2023-08-25 19:19:15,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1101.6666666666667) internal successors, (3305), 3 states have internal predecessors, (3305), 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 19:19:15,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:15,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:15,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:19:15,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:15,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:15,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1805253009, now seen corresponding path program 1 times [2023-08-25 19:19:15,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:15,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218255191] [2023-08-25 19:19:15,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:15,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:15,924 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 19:19:15,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:15,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218255191] [2023-08-25 19:19:15,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218255191] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:15,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:15,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:19:15,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189062771] [2023-08-25 19:19:15,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:15,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:15,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:15,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:15,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:15,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-25 19:19:15,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 233 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 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 19:19:15,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:15,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-25 19:19:15,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:16,947 INFO L124 PetriNetUnfolderBase]: 10502/20061 cut-off events. [2023-08-25 19:19:16,948 INFO L125 PetriNetUnfolderBase]: For 302/344 co-relation queries the response was YES. [2023-08-25 19:19:16,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36514 conditions, 20061 events. 10502/20061 cut-off events. For 302/344 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 160519 event pairs, 3306 based on Foata normal form. 1/16678 useless extension candidates. Maximal degree in co-relation 36509. Up to 15648 conditions per place. [2023-08-25 19:19:17,025 INFO L140 encePairwiseOnDemand]: 2428/2442 looper letters, 166 selfloop transitions, 6 changer transitions 0/252 dead transitions. [2023-08-25 19:19:17,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 252 transitions, 904 flow [2023-08-25 19:19:17,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:17,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:17,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3471 transitions. [2023-08-25 19:19:17,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4737919737919738 [2023-08-25 19:19:17,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3471 transitions. [2023-08-25 19:19:17,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3471 transitions. [2023-08-25 19:19:17,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:17,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3471 transitions. [2023-08-25 19:19:17,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1157.0) internal successors, (3471), 3 states have internal predecessors, (3471), 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 19:19:17,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:17,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:17,045 INFO L175 Difference]: Start difference. First operand has 204 places, 233 transitions, 514 flow. Second operand 3 states and 3471 transitions. [2023-08-25 19:19:17,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 252 transitions, 904 flow [2023-08-25 19:19:17,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 252 transitions, 904 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:19:17,050 INFO L231 Difference]: Finished difference. Result has 199 places, 231 transitions, 540 flow [2023-08-25 19:19:17,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=199, PETRI_TRANSITIONS=231} [2023-08-25 19:19:17,051 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -105 predicate places. [2023-08-25 19:19:17,051 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 231 transitions, 540 flow [2023-08-25 19:19:17,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 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 19:19:17,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:17,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:17,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:19:17,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:17,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1100920401, now seen corresponding path program 1 times [2023-08-25 19:19:17,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:17,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86453752] [2023-08-25 19:19:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:17,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:19:17,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:17,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86453752] [2023-08-25 19:19:17,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86453752] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:19:17,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895076639] [2023-08-25 19:19:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:17,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:19:17,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:19:17,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:19:17,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 19:19:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:17,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 19:19:17,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:19:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:19:17,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:19:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:19:17,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895076639] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:19:17,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:19:17,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-25 19:19:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949215847] [2023-08-25 19:19:17,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:19:17,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:19:17,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:17,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:19:17,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:19:17,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 2442 [2023-08-25 19:19:17,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 231 transitions, 540 flow. Second operand has 8 states, 8 states have (on average 1100.125) internal successors, (8801), 8 states have internal predecessors, (8801), 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 19:19:17,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:17,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 2442 [2023-08-25 19:19:17,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:18,523 INFO L124 PetriNetUnfolderBase]: 10148/19629 cut-off events. [2023-08-25 19:19:18,523 INFO L125 PetriNetUnfolderBase]: For 606/651 co-relation queries the response was YES. [2023-08-25 19:19:18,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36057 conditions, 19629 events. 10148/19629 cut-off events. For 606/651 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 158980 event pairs, 6956 based on Foata normal form. 0/16226 useless extension candidates. Maximal degree in co-relation 36051. Up to 15200 conditions per place. [2023-08-25 19:19:18,590 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 143 selfloop transitions, 10 changer transitions 0/237 dead transitions. [2023-08-25 19:19:18,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 237 transitions, 870 flow [2023-08-25 19:19:18,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:19:18,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:19:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6739 transitions. [2023-08-25 19:19:18,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45993720993720993 [2023-08-25 19:19:18,602 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6739 transitions. [2023-08-25 19:19:18,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6739 transitions. [2023-08-25 19:19:18,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:18,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6739 transitions. [2023-08-25 19:19:18,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1123.1666666666667) internal successors, (6739), 6 states have internal predecessors, (6739), 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 19:19:18,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2442.0) internal successors, (17094), 7 states have internal predecessors, (17094), 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 19:19:18,625 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2442.0) internal successors, (17094), 7 states have internal predecessors, (17094), 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 19:19:18,625 INFO L175 Difference]: Start difference. First operand has 199 places, 231 transitions, 540 flow. Second operand 6 states and 6739 transitions. [2023-08-25 19:19:18,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 237 transitions, 870 flow [2023-08-25 19:19:18,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 237 transitions, 870 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:19:18,629 INFO L231 Difference]: Finished difference. Result has 207 places, 237 transitions, 606 flow [2023-08-25 19:19:18,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=606, PETRI_PLACES=207, PETRI_TRANSITIONS=237} [2023-08-25 19:19:18,630 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -97 predicate places. [2023-08-25 19:19:18,630 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 237 transitions, 606 flow [2023-08-25 19:19:18,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1100.125) internal successors, (8801), 8 states have internal predecessors, (8801), 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 19:19:18,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:18,631 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:18,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 19:19:18,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:19:18,837 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:18,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:18,837 INFO L85 PathProgramCache]: Analyzing trace with hash -437792097, now seen corresponding path program 2 times [2023-08-25 19:19:18,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:18,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918981317] [2023-08-25 19:19:18,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:18,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 19:19:18,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:18,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918981317] [2023-08-25 19:19:18,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918981317] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:19:18,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81216643] [2023-08-25 19:19:18,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:19:18,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:19:18,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:19:18,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:19:19,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 19:19:19,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 19:19:19,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:19:19,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 19:19:19,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:19:19,155 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 19:19:19,172 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 19:19:19,191 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:19:19,191 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 19:19:19,219 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:19:19,220 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 19:19:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:19,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 19:19:19,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81216643] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:19,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 19:19:19,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-25 19:19:19,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604035755] [2023-08-25 19:19:19,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:19,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:19:19,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:19,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:19:19,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-25 19:19:19,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1054 out of 2442 [2023-08-25 19:19:19,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 237 transitions, 606 flow. Second operand has 7 states, 7 states have (on average 1055.857142857143) internal successors, (7391), 7 states have internal predecessors, (7391), 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 19:19:19,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:19,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1054 of 2442 [2023-08-25 19:19:19,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:24,543 INFO L124 PetriNetUnfolderBase]: 53802/79281 cut-off events. [2023-08-25 19:19:24,544 INFO L125 PetriNetUnfolderBase]: For 2387/2387 co-relation queries the response was YES. [2023-08-25 19:19:24,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161156 conditions, 79281 events. 53802/79281 cut-off events. For 2387/2387 co-relation queries the response was YES. Maximal size of possible extension queue 1257. Compared 562977 event pairs, 3616 based on Foata normal form. 0/62050 useless extension candidates. Maximal degree in co-relation 161146. Up to 28000 conditions per place. [2023-08-25 19:19:24,925 INFO L140 encePairwiseOnDemand]: 2436/2442 looper letters, 810 selfloop transitions, 5 changer transitions 0/864 dead transitions. [2023-08-25 19:19:24,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 864 transitions, 3650 flow [2023-08-25 19:19:24,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:19:24,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:19:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8146 transitions. [2023-08-25 19:19:24,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47654147654147655 [2023-08-25 19:19:24,938 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 8146 transitions. [2023-08-25 19:19:24,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8146 transitions. [2023-08-25 19:19:24,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:24,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 8146 transitions. [2023-08-25 19:19:24,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1163.7142857142858) internal successors, (8146), 7 states have internal predecessors, (8146), 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 19:19:24,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2442.0) internal successors, (19536), 8 states have internal predecessors, (19536), 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 19:19:24,962 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2442.0) internal successors, (19536), 8 states have internal predecessors, (19536), 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 19:19:24,962 INFO L175 Difference]: Start difference. First operand has 207 places, 237 transitions, 606 flow. Second operand 7 states and 8146 transitions. [2023-08-25 19:19:24,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 864 transitions, 3650 flow [2023-08-25 19:19:24,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 864 transitions, 3634 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 19:19:24,972 INFO L231 Difference]: Finished difference. Result has 211 places, 236 transitions, 598 flow [2023-08-25 19:19:24,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=598, PETRI_PLACES=211, PETRI_TRANSITIONS=236} [2023-08-25 19:19:24,973 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -93 predicate places. [2023-08-25 19:19:24,973 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 236 transitions, 598 flow [2023-08-25 19:19:24,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1055.857142857143) internal successors, (7391), 7 states have internal predecessors, (7391), 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 19:19:24,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:24,974 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:24,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 19:19:25,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-25 19:19:25,179 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:25,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:25,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1588516191, now seen corresponding path program 1 times [2023-08-25 19:19:25,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:25,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116190449] [2023-08-25 19:19:25,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:25,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:25,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116190449] [2023-08-25 19:19:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116190449] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:25,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:25,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:19:25,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471802004] [2023-08-25 19:19:25,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:25,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:25,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:25,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:25,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:25,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-25 19:19:25,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 236 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 1103.0) internal successors, (3309), 3 states have internal predecessors, (3309), 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 19:19:25,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:25,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-25 19:19:25,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:26,752 INFO L124 PetriNetUnfolderBase]: 12877/24120 cut-off events. [2023-08-25 19:19:26,752 INFO L125 PetriNetUnfolderBase]: For 3816/3882 co-relation queries the response was YES. [2023-08-25 19:19:26,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47970 conditions, 24120 events. 12877/24120 cut-off events. For 3816/3882 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 195872 event pairs, 3033 based on Foata normal form. 1/19774 useless extension candidates. Maximal degree in co-relation 47959. Up to 13650 conditions per place. [2023-08-25 19:19:26,853 INFO L140 encePairwiseOnDemand]: 2429/2442 looper letters, 237 selfloop transitions, 5 changer transitions 0/316 dead transitions. [2023-08-25 19:19:26,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 316 transitions, 1263 flow [2023-08-25 19:19:26,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3531 transitions. [2023-08-25 19:19:26,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.481981981981982 [2023-08-25 19:19:26,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3531 transitions. [2023-08-25 19:19:26,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3531 transitions. [2023-08-25 19:19:26,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:26,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3531 transitions. [2023-08-25 19:19:26,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1177.0) internal successors, (3531), 3 states have internal predecessors, (3531), 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 19:19:26,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:26,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:26,869 INFO L175 Difference]: Start difference. First operand has 211 places, 236 transitions, 598 flow. Second operand 3 states and 3531 transitions. [2023-08-25 19:19:26,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 316 transitions, 1263 flow [2023-08-25 19:19:26,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 316 transitions, 1252 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 19:19:26,877 INFO L231 Difference]: Finished difference. Result has 201 places, 233 transitions, 608 flow [2023-08-25 19:19:26,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=201, PETRI_TRANSITIONS=233} [2023-08-25 19:19:26,878 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -103 predicate places. [2023-08-25 19:19:26,878 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 233 transitions, 608 flow [2023-08-25 19:19:26,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1103.0) internal successors, (3309), 3 states have internal predecessors, (3309), 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 19:19:26,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:26,879 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:26,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:19:26,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:26,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:26,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1588516680, now seen corresponding path program 1 times [2023-08-25 19:19:26,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:26,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267018498] [2023-08-25 19:19:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:26,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:26,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:26,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267018498] [2023-08-25 19:19:26,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267018498] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:26,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:26,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:19:26,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655663129] [2023-08-25 19:19:26,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:26,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:26,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:26,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:26,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:26,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1085 out of 2442 [2023-08-25 19:19:26,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 233 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 1088.6666666666667) internal successors, (3266), 3 states have internal predecessors, (3266), 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 19:19:26,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:26,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1085 of 2442 [2023-08-25 19:19:26,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:29,923 INFO L124 PetriNetUnfolderBase]: 25250/43132 cut-off events. [2023-08-25 19:19:29,923 INFO L125 PetriNetUnfolderBase]: For 1866/1912 co-relation queries the response was YES. [2023-08-25 19:19:30,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85176 conditions, 43132 events. 25250/43132 cut-off events. For 1866/1912 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 321047 event pairs, 12005 based on Foata normal form. 3/35212 useless extension candidates. Maximal degree in co-relation 85165. Up to 23494 conditions per place. [2023-08-25 19:19:30,137 INFO L140 encePairwiseOnDemand]: 2439/2442 looper letters, 302 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2023-08-25 19:19:30,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 361 transitions, 1500 flow [2023-08-25 19:19:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:30,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3537 transitions. [2023-08-25 19:19:30,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4828009828009828 [2023-08-25 19:19:30,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3537 transitions. [2023-08-25 19:19:30,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3537 transitions. [2023-08-25 19:19:30,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:30,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3537 transitions. [2023-08-25 19:19:30,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1179.0) internal successors, (3537), 3 states have internal predecessors, (3537), 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 19:19:30,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:30,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:30,151 INFO L175 Difference]: Start difference. First operand has 201 places, 233 transitions, 608 flow. Second operand 3 states and 3537 transitions. [2023-08-25 19:19:30,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 361 transitions, 1500 flow [2023-08-25 19:19:30,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 361 transitions, 1500 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:19:30,157 INFO L231 Difference]: Finished difference. Result has 204 places, 234 transitions, 620 flow [2023-08-25 19:19:30,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=204, PETRI_TRANSITIONS=234} [2023-08-25 19:19:30,158 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-25 19:19:30,158 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 234 transitions, 620 flow [2023-08-25 19:19:30,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1088.6666666666667) internal successors, (3266), 3 states have internal predecessors, (3266), 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 19:19:30,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:30,159 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:30,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:19:30,159 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err56ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:30,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:30,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1588516683, now seen corresponding path program 1 times [2023-08-25 19:19:30,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:30,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179429] [2023-08-25 19:19:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:30,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:30,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179429] [2023-08-25 19:19:30,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179429] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:30,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:19:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266918573] [2023-08-25 19:19:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:30,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:30,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 2442 [2023-08-25 19:19:30,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 234 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 1092.0) internal successors, (3276), 3 states have internal predecessors, (3276), 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 19:19:30,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:30,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 2442 [2023-08-25 19:19:30,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:32,879 INFO L124 PetriNetUnfolderBase]: 18319/34974 cut-off events. [2023-08-25 19:19:32,879 INFO L125 PetriNetUnfolderBase]: For 1879/1925 co-relation queries the response was YES. [2023-08-25 19:19:32,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66067 conditions, 34974 events. 18319/34974 cut-off events. For 1879/1925 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 293781 event pairs, 12464 based on Foata normal form. 3/29730 useless extension candidates. Maximal degree in co-relation 66054. Up to 26791 conditions per place. [2023-08-25 19:19:33,017 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 225 selfloop transitions, 3 changer transitions 0/303 dead transitions. [2023-08-25 19:19:33,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 303 transitions, 1238 flow [2023-08-25 19:19:33,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:33,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:33,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2023-08-25 19:19:33,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47351897351897354 [2023-08-25 19:19:33,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3469 transitions. [2023-08-25 19:19:33,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3469 transitions. [2023-08-25 19:19:33,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:33,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3469 transitions. [2023-08-25 19:19:33,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1156.3333333333333) internal successors, (3469), 3 states have internal predecessors, (3469), 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 19:19:33,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:33,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:33,031 INFO L175 Difference]: Start difference. First operand has 204 places, 234 transitions, 620 flow. Second operand 3 states and 3469 transitions. [2023-08-25 19:19:33,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 303 transitions, 1238 flow [2023-08-25 19:19:33,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 303 transitions, 1236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:19:33,036 INFO L231 Difference]: Finished difference. Result has 204 places, 233 transitions, 622 flow [2023-08-25 19:19:33,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=204, PETRI_TRANSITIONS=233} [2023-08-25 19:19:33,037 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-25 19:19:33,037 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 233 transitions, 622 flow [2023-08-25 19:19:33,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.0) internal successors, (3276), 3 states have internal predecessors, (3276), 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 19:19:33,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:33,038 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:33,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:19:33,038 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:33,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:33,038 INFO L85 PathProgramCache]: Analyzing trace with hash -818796385, now seen corresponding path program 1 times [2023-08-25 19:19:33,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:33,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454516922] [2023-08-25 19:19:33,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:33,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454516922] [2023-08-25 19:19:33,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454516922] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:33,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:33,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:19:33,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377330784] [2023-08-25 19:19:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:33,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:33,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1119 out of 2442 [2023-08-25 19:19:33,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 233 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 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 19:19:33,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:33,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1119 of 2442 [2023-08-25 19:19:33,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:35,367 INFO L124 PetriNetUnfolderBase]: 18865/36093 cut-off events. [2023-08-25 19:19:35,367 INFO L125 PetriNetUnfolderBase]: For 2088/2132 co-relation queries the response was YES. [2023-08-25 19:19:35,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68747 conditions, 36093 events. 18865/36093 cut-off events. For 2088/2132 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 306245 event pairs, 11873 based on Foata normal form. 1/30717 useless extension candidates. Maximal degree in co-relation 68734. Up to 25327 conditions per place. [2023-08-25 19:19:35,535 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 224 selfloop transitions, 3 changer transitions 0/302 dead transitions. [2023-08-25 19:19:35,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 302 transitions, 1248 flow [2023-08-25 19:19:35,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:35,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3560 transitions. [2023-08-25 19:19:35,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48594048594048594 [2023-08-25 19:19:35,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3560 transitions. [2023-08-25 19:19:35,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3560 transitions. [2023-08-25 19:19:35,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:35,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3560 transitions. [2023-08-25 19:19:35,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1186.6666666666667) internal successors, (3560), 3 states have internal predecessors, (3560), 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 19:19:35,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:35,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:35,549 INFO L175 Difference]: Start difference. First operand has 204 places, 233 transitions, 622 flow. Second operand 3 states and 3560 transitions. [2023-08-25 19:19:35,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 302 transitions, 1248 flow [2023-08-25 19:19:35,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 302 transitions, 1236 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:19:35,572 INFO L231 Difference]: Finished difference. Result has 206 places, 235 transitions, 638 flow [2023-08-25 19:19:35,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=206, PETRI_TRANSITIONS=235} [2023-08-25 19:19:35,572 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -98 predicate places. [2023-08-25 19:19:35,572 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 235 transitions, 638 flow [2023-08-25 19:19:35,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 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 19:19:35,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:35,573 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:35,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:19:35,573 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:35,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:35,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1673052825, now seen corresponding path program 1 times [2023-08-25 19:19:35,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:35,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653207120] [2023-08-25 19:19:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:35,601 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:35,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:35,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653207120] [2023-08-25 19:19:35,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653207120] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:35,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:35,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:19:35,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750782633] [2023-08-25 19:19:35,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:35,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:35,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:35,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:35,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:35,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1116 out of 2442 [2023-08-25 19:19:35,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 235 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 1120.3333333333333) internal successors, (3361), 3 states have internal predecessors, (3361), 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 19:19:35,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:35,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1116 of 2442 [2023-08-25 19:19:35,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:38,759 INFO L124 PetriNetUnfolderBase]: 21820/41862 cut-off events. [2023-08-25 19:19:38,759 INFO L125 PetriNetUnfolderBase]: For 3688/3693 co-relation queries the response was YES. [2023-08-25 19:19:38,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80442 conditions, 41862 events. 21820/41862 cut-off events. For 3688/3693 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 369197 event pairs, 13215 based on Foata normal form. 22/35963 useless extension candidates. Maximal degree in co-relation 80428. Up to 28029 conditions per place. [2023-08-25 19:19:38,943 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 246 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2023-08-25 19:19:38,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 322 transitions, 1357 flow [2023-08-25 19:19:38,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:38,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3569 transitions. [2023-08-25 19:19:38,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48716898716898716 [2023-08-25 19:19:38,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3569 transitions. [2023-08-25 19:19:38,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3569 transitions. [2023-08-25 19:19:38,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:38,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3569 transitions. [2023-08-25 19:19:38,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1189.6666666666667) internal successors, (3569), 3 states have internal predecessors, (3569), 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 19:19:38,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:38,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:38,955 INFO L175 Difference]: Start difference. First operand has 206 places, 235 transitions, 638 flow. Second operand 3 states and 3569 transitions. [2023-08-25 19:19:38,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 322 transitions, 1357 flow [2023-08-25 19:19:38,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 322 transitions, 1345 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:19:38,966 INFO L231 Difference]: Finished difference. Result has 208 places, 235 transitions, 645 flow [2023-08-25 19:19:38,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=208, PETRI_TRANSITIONS=235} [2023-08-25 19:19:38,967 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -96 predicate places. [2023-08-25 19:19:38,967 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 235 transitions, 645 flow [2023-08-25 19:19:38,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1120.3333333333333) internal successors, (3361), 3 states have internal predecessors, (3361), 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 19:19:38,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:38,967 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:38,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:19:38,967 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:38,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1360275125, now seen corresponding path program 1 times [2023-08-25 19:19:38,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:38,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698313132] [2023-08-25 19:19:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:38,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:38,997 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:38,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:38,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698313132] [2023-08-25 19:19:38,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698313132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:38,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:38,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:19:38,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92665249] [2023-08-25 19:19:38,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:38,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:38,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:38,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:38,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:39,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-25 19:19:39,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 235 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 1104.0) internal successors, (3312), 3 states have internal predecessors, (3312), 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 19:19:39,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:39,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-25 19:19:39,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:42,506 INFO L124 PetriNetUnfolderBase]: 27239/49351 cut-off events. [2023-08-25 19:19:42,506 INFO L125 PetriNetUnfolderBase]: For 4958/4994 co-relation queries the response was YES. [2023-08-25 19:19:42,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98256 conditions, 49351 events. 27239/49351 cut-off events. For 4958/4994 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 414555 event pairs, 6083 based on Foata normal form. 0/42828 useless extension candidates. Maximal degree in co-relation 98241. Up to 30822 conditions per place. [2023-08-25 19:19:42,769 INFO L140 encePairwiseOnDemand]: 2429/2442 looper letters, 251 selfloop transitions, 5 changer transitions 0/319 dead transitions. [2023-08-25 19:19:42,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 319 transitions, 1385 flow [2023-08-25 19:19:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3532 transitions. [2023-08-25 19:19:42,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48211848211848213 [2023-08-25 19:19:42,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3532 transitions. [2023-08-25 19:19:42,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3532 transitions. [2023-08-25 19:19:42,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:42,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3532 transitions. [2023-08-25 19:19:42,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 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 19:19:42,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:42,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:42,781 INFO L175 Difference]: Start difference. First operand has 208 places, 235 transitions, 645 flow. Second operand 3 states and 3532 transitions. [2023-08-25 19:19:42,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 319 transitions, 1385 flow [2023-08-25 19:19:42,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 319 transitions, 1381 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:19:42,795 INFO L231 Difference]: Finished difference. Result has 202 places, 232 transitions, 662 flow [2023-08-25 19:19:42,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=202, PETRI_TRANSITIONS=232} [2023-08-25 19:19:42,796 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -102 predicate places. [2023-08-25 19:19:42,796 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 232 transitions, 662 flow [2023-08-25 19:19:42,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1104.0) internal successors, (3312), 3 states have internal predecessors, (3312), 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 19:19:42,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:42,797 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:42,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:19:42,797 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:42,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:42,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1360275690, now seen corresponding path program 1 times [2023-08-25 19:19:42,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:42,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934603566] [2023-08-25 19:19:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:42,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:42,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:42,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934603566] [2023-08-25 19:19:42,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934603566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:42,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:42,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:19:42,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043463340] [2023-08-25 19:19:42,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:42,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:42,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:42,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1085 out of 2442 [2023-08-25 19:19:42,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 232 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 1089.6666666666667) internal successors, (3269), 3 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 19:19:42,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:42,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1085 of 2442 [2023-08-25 19:19:42,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:48,207 INFO L124 PetriNetUnfolderBase]: 45046/75996 cut-off events. [2023-08-25 19:19:48,207 INFO L125 PetriNetUnfolderBase]: For 7323/7434 co-relation queries the response was YES. [2023-08-25 19:19:48,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158712 conditions, 75996 events. 45046/75996 cut-off events. For 7323/7434 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 613341 event pairs, 21680 based on Foata normal form. 9/64590 useless extension candidates. Maximal degree in co-relation 158697. Up to 43060 conditions per place. [2023-08-25 19:19:48,691 INFO L140 encePairwiseOnDemand]: 2439/2442 looper letters, 294 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2023-08-25 19:19:48,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 354 transitions, 1565 flow [2023-08-25 19:19:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:48,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3515 transitions. [2023-08-25 19:19:48,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797979797979798 [2023-08-25 19:19:48,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3515 transitions. [2023-08-25 19:19:48,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3515 transitions. [2023-08-25 19:19:48,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:48,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3515 transitions. [2023-08-25 19:19:48,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1171.6666666666667) internal successors, (3515), 3 states have internal predecessors, (3515), 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 19:19:48,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:48,702 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:48,702 INFO L175 Difference]: Start difference. First operand has 202 places, 232 transitions, 662 flow. Second operand 3 states and 3515 transitions. [2023-08-25 19:19:48,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 354 transitions, 1565 flow [2023-08-25 19:19:48,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 354 transitions, 1565 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:19:48,713 INFO L231 Difference]: Finished difference. Result has 205 places, 233 transitions, 674 flow [2023-08-25 19:19:48,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=205, PETRI_TRANSITIONS=233} [2023-08-25 19:19:48,714 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -99 predicate places. [2023-08-25 19:19:48,714 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 233 transitions, 674 flow [2023-08-25 19:19:48,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.6666666666667) internal successors, (3269), 3 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 19:19:48,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:48,714 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:48,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:19:48,714 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:48,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:48,715 INFO L85 PathProgramCache]: Analyzing trace with hash -897404211, now seen corresponding path program 1 times [2023-08-25 19:19:48,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:48,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106369388] [2023-08-25 19:19:48,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:48,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:48,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106369388] [2023-08-25 19:19:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106369388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:48,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:48,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:19:48,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384652716] [2023-08-25 19:19:48,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:48,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:48,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:48,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:48,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:48,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1116 out of 2442 [2023-08-25 19:19:48,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 233 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 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 19:19:48,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:48,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1116 of 2442 [2023-08-25 19:19:48,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:19:54,692 INFO L124 PetriNetUnfolderBase]: 43827/80828 cut-off events. [2023-08-25 19:19:54,692 INFO L125 PetriNetUnfolderBase]: For 7369/7408 co-relation queries the response was YES. [2023-08-25 19:19:55,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163957 conditions, 80828 events. 43827/80828 cut-off events. For 7369/7408 co-relation queries the response was YES. Maximal size of possible extension queue 1315. Compared 738344 event pairs, 27327 based on Foata normal form. 27/72229 useless extension candidates. Maximal degree in co-relation 163940. Up to 56293 conditions per place. [2023-08-25 19:19:55,238 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 248 selfloop transitions, 3 changer transitions 0/318 dead transitions. [2023-08-25 19:19:55,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 318 transitions, 1414 flow [2023-08-25 19:19:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:19:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:19:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3563 transitions. [2023-08-25 19:19:55,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48634998634998633 [2023-08-25 19:19:55,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3563 transitions. [2023-08-25 19:19:55,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3563 transitions. [2023-08-25 19:19:55,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:19:55,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3563 transitions. [2023-08-25 19:19:55,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1187.6666666666667) internal successors, (3563), 3 states have internal predecessors, (3563), 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 19:19:55,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:55,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:19:55,253 INFO L175 Difference]: Start difference. First operand has 205 places, 233 transitions, 674 flow. Second operand 3 states and 3563 transitions. [2023-08-25 19:19:55,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 318 transitions, 1414 flow [2023-08-25 19:19:55,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 318 transitions, 1412 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:19:55,352 INFO L231 Difference]: Finished difference. Result has 208 places, 235 transitions, 698 flow [2023-08-25 19:19:55,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=208, PETRI_TRANSITIONS=235} [2023-08-25 19:19:55,353 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -96 predicate places. [2023-08-25 19:19:55,353 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 235 transitions, 698 flow [2023-08-25 19:19:55,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 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 19:19:55,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:19:55,353 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:19:55,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:19:55,353 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:19:55,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:19:55,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1182471983, now seen corresponding path program 1 times [2023-08-25 19:19:55,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:19:55,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915511304] [2023-08-25 19:19:55,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:19:55,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:19:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:19:55,402 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:19:55,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:19:55,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915511304] [2023-08-25 19:19:55,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915511304] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:19:55,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:19:55,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:19:55,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896318961] [2023-08-25 19:19:55,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:19:55,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:19:55,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:19:55,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:19:55,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:19:55,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 2442 [2023-08-25 19:19:55,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 235 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 1093.3333333333333) internal successors, (3280), 3 states have internal predecessors, (3280), 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 19:19:55,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:19:55,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 2442 [2023-08-25 19:19:55,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:20:01,422 INFO L124 PetriNetUnfolderBase]: 43863/80941 cut-off events. [2023-08-25 19:20:01,423 INFO L125 PetriNetUnfolderBase]: For 10849/10890 co-relation queries the response was YES. [2023-08-25 19:20:01,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166301 conditions, 80941 events. 43863/80941 cut-off events. For 10849/10890 co-relation queries the response was YES. Maximal size of possible extension queue 1323. Compared 737058 event pairs, 30707 based on Foata normal form. 1024/73946 useless extension candidates. Maximal degree in co-relation 166283. Up to 63305 conditions per place. [2023-08-25 19:20:02,016 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 232 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2023-08-25 19:20:02,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 303 transitions, 1359 flow [2023-08-25 19:20:02,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:20:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:20:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3465 transitions. [2023-08-25 19:20:02,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47297297297297297 [2023-08-25 19:20:02,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3465 transitions. [2023-08-25 19:20:02,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3465 transitions. [2023-08-25 19:20:02,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:20:02,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3465 transitions. [2023-08-25 19:20:02,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1155.0) internal successors, (3465), 3 states have internal predecessors, (3465), 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 19:20:02,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:20:02,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:20:02,027 INFO L175 Difference]: Start difference. First operand has 208 places, 235 transitions, 698 flow. Second operand 3 states and 3465 transitions. [2023-08-25 19:20:02,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 303 transitions, 1359 flow [2023-08-25 19:20:02,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 303 transitions, 1356 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:20:02,238 INFO L231 Difference]: Finished difference. Result has 208 places, 234 transitions, 703 flow [2023-08-25 19:20:02,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=208, PETRI_TRANSITIONS=234} [2023-08-25 19:20:02,238 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -96 predicate places. [2023-08-25 19:20:02,238 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 234 transitions, 703 flow [2023-08-25 19:20:02,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1093.3333333333333) internal successors, (3280), 3 states have internal predecessors, (3280), 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 19:20:02,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:20:02,239 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:20:02,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:20:02,239 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:20:02,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:20:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1503976468, now seen corresponding path program 1 times [2023-08-25 19:20:02,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:20:02,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227795423] [2023-08-25 19:20:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:20:02,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:20:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:20:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:20:02,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:20:02,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227795423] [2023-08-25 19:20:02,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227795423] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:20:02,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:20:02,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:20:02,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3545724] [2023-08-25 19:20:02,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:20:02,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:20:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:20:02,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:20:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:20:02,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-25 19:20:02,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 234 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 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 19:20:02,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:20:02,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-25 19:20:02,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:20:25,191 INFO L124 PetriNetUnfolderBase]: 225315/343704 cut-off events. [2023-08-25 19:20:25,191 INFO L125 PetriNetUnfolderBase]: For 54162/54164 co-relation queries the response was YES. [2023-08-25 19:20:26,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770238 conditions, 343704 events. 225315/343704 cut-off events. For 54162/54164 co-relation queries the response was YES. Maximal size of possible extension queue 3668. Compared 2806210 event pairs, 71390 based on Foata normal form. 0/299639 useless extension candidates. Maximal degree in co-relation 770220. Up to 194958 conditions per place. [2023-08-25 19:20:27,823 INFO L140 encePairwiseOnDemand]: 2436/2442 looper letters, 284 selfloop transitions, 3 changer transitions 0/316 dead transitions. [2023-08-25 19:20:27,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 316 transitions, 1511 flow [2023-08-25 19:20:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:20:27,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:20:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3365 transitions. [2023-08-25 19:20:27,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4593229593229593 [2023-08-25 19:20:27,828 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3365 transitions. [2023-08-25 19:20:27,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3365 transitions. [2023-08-25 19:20:27,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:20:27,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3365 transitions. [2023-08-25 19:20:27,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1121.6666666666667) internal successors, (3365), 3 states have internal predecessors, (3365), 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 19:20:27,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:20:27,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:20:27,834 INFO L175 Difference]: Start difference. First operand has 208 places, 234 transitions, 703 flow. Second operand 3 states and 3365 transitions. [2023-08-25 19:20:27,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 316 transitions, 1511 flow [2023-08-25 19:20:29,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 316 transitions, 1491 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:20:29,293 INFO L231 Difference]: Finished difference. Result has 204 places, 230 transitions, 691 flow [2023-08-25 19:20:29,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=204, PETRI_TRANSITIONS=230} [2023-08-25 19:20:29,294 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-25 19:20:29,294 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 230 transitions, 691 flow [2023-08-25 19:20:29,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 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 19:20:29,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:20:29,294 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:20:29,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:20:29,295 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:20:29,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:20:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2031896341, now seen corresponding path program 1 times [2023-08-25 19:20:29,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:20:29,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386469297] [2023-08-25 19:20:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:20:29,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:20:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:20:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:20:29,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:20:29,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386469297] [2023-08-25 19:20:29,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386469297] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:20:29,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:20:29,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:20:29,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558052605] [2023-08-25 19:20:29,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:20:29,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:20:29,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:20:29,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:20:29,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:20:29,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2442 [2023-08-25 19:20:29,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 230 transitions, 691 flow. Second operand has 3 states, 3 states have (on average 1122.3333333333333) internal successors, (3367), 3 states have internal predecessors, (3367), 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 19:20:29,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:20:29,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2442 [2023-08-25 19:20:29,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:20:35,943 INFO L124 PetriNetUnfolderBase]: 48896/90254 cut-off events. [2023-08-25 19:20:35,943 INFO L125 PetriNetUnfolderBase]: For 11431/11499 co-relation queries the response was YES. [2023-08-25 19:20:36,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187069 conditions, 90254 events. 48896/90254 cut-off events. For 11431/11499 co-relation queries the response was YES. Maximal size of possible extension queue 1525. Compared 843739 event pairs, 31401 based on Foata normal form. 9/81258 useless extension candidates. Maximal degree in co-relation 187051. Up to 64043 conditions per place. [2023-08-25 19:20:36,551 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 313 selfloop transitions, 2 changer transitions 0/373 dead transitions. [2023-08-25 19:20:36,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 373 transitions, 1731 flow [2023-08-25 19:20:36,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:20:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:20:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3622 transitions. [2023-08-25 19:20:36,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4944034944034944 [2023-08-25 19:20:36,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3622 transitions. [2023-08-25 19:20:36,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3622 transitions. [2023-08-25 19:20:36,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:20:36,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3622 transitions. [2023-08-25 19:20:36,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1207.3333333333333) internal successors, (3622), 3 states have internal predecessors, (3622), 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 19:20:36,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:20:36,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:20:36,563 INFO L175 Difference]: Start difference. First operand has 204 places, 230 transitions, 691 flow. Second operand 3 states and 3622 transitions. [2023-08-25 19:20:36,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 373 transitions, 1731 flow [2023-08-25 19:20:36,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 373 transitions, 1721 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:20:36,590 INFO L231 Difference]: Finished difference. Result has 203 places, 230 transitions, 695 flow [2023-08-25 19:20:36,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=203, PETRI_TRANSITIONS=230} [2023-08-25 19:20:36,590 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -101 predicate places. [2023-08-25 19:20:36,591 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 230 transitions, 695 flow [2023-08-25 19:20:36,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1122.3333333333333) internal successors, (3367), 3 states have internal predecessors, (3367), 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 19:20:36,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:20:36,591 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:20:36,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:20:36,591 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:20:36,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:20:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1555213801, now seen corresponding path program 1 times [2023-08-25 19:20:36,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:20:36,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284779566] [2023-08-25 19:20:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:20:36,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:20:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:20:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:20:36,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:20:36,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284779566] [2023-08-25 19:20:36,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284779566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:20:36,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:20:36,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:20:36,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068408007] [2023-08-25 19:20:36,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:20:36,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:20:36,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:20:36,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:20:36,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:20:36,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-25 19:20:36,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 230 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 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 19:20:36,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:20:36,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-25 19:20:36,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:20:58,870 INFO L124 PetriNetUnfolderBase]: 217350/334014 cut-off events. [2023-08-25 19:20:58,870 INFO L125 PetriNetUnfolderBase]: For 39947/39961 co-relation queries the response was YES. [2023-08-25 19:21:00,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746070 conditions, 334014 events. 217350/334014 cut-off events. For 39947/39961 co-relation queries the response was YES. Maximal size of possible extension queue 3999. Compared 2799576 event pairs, 77658 based on Foata normal form. 0/295261 useless extension candidates. Maximal degree in co-relation 746052. Up to 177817 conditions per place. [2023-08-25 19:21:01,208 INFO L140 encePairwiseOnDemand]: 2436/2442 looper letters, 281 selfloop transitions, 3 changer transitions 0/314 dead transitions. [2023-08-25 19:21:01,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 314 transitions, 1477 flow [2023-08-25 19:21:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3364 transitions. [2023-08-25 19:21:01,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4591864591864592 [2023-08-25 19:21:01,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3364 transitions. [2023-08-25 19:21:01,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3364 transitions. [2023-08-25 19:21:01,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:01,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3364 transitions. [2023-08-25 19:21:01,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1121.3333333333333) internal successors, (3364), 3 states have internal predecessors, (3364), 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 19:21:01,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:21:01,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:21:01,218 INFO L175 Difference]: Start difference. First operand has 203 places, 230 transitions, 695 flow. Second operand 3 states and 3364 transitions. [2023-08-25 19:21:01,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 314 transitions, 1477 flow [2023-08-25 19:21:01,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 314 transitions, 1477 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:01,386 INFO L231 Difference]: Finished difference. Result has 201 places, 226 transitions, 693 flow [2023-08-25 19:21:01,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=201, PETRI_TRANSITIONS=226} [2023-08-25 19:21:01,386 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -103 predicate places. [2023-08-25 19:21:01,386 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 226 transitions, 693 flow [2023-08-25 19:21:01,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 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 19:21:01,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:01,387 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:01,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:21:01,387 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:21:01,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:01,387 INFO L85 PathProgramCache]: Analyzing trace with hash 873671710, now seen corresponding path program 1 times [2023-08-25 19:21:01,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:01,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474292997] [2023-08-25 19:21:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:01,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:21:01,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:01,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474292997] [2023-08-25 19:21:01,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474292997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:01,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:01,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:01,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665251750] [2023-08-25 19:21:01,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:01,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:01,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:01,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:01,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:01,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2442 [2023-08-25 19:21:01,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 226 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 1122.6666666666667) internal successors, (3368), 3 states have internal predecessors, (3368), 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 19:21:01,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:01,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2442 [2023-08-25 19:21:01,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:07,842 INFO L124 PetriNetUnfolderBase]: 48940/88212 cut-off events. [2023-08-25 19:21:07,842 INFO L125 PetriNetUnfolderBase]: For 12118/12159 co-relation queries the response was YES. [2023-08-25 19:21:08,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187436 conditions, 88212 events. 48940/88212 cut-off events. For 12118/12159 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 798067 event pairs, 31487 based on Foata normal form. 0/79889 useless extension candidates. Maximal degree in co-relation 187417. Up to 64149 conditions per place. [2023-08-25 19:21:08,477 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 314 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2023-08-25 19:21:08,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 369 transitions, 1740 flow [2023-08-25 19:21:08,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:08,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:08,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3622 transitions. [2023-08-25 19:21:08,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4944034944034944 [2023-08-25 19:21:08,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3622 transitions. [2023-08-25 19:21:08,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3622 transitions. [2023-08-25 19:21:08,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:08,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3622 transitions. [2023-08-25 19:21:08,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1207.3333333333333) internal successors, (3622), 3 states have internal predecessors, (3622), 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 19:21:08,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:21:08,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:21:08,486 INFO L175 Difference]: Start difference. First operand has 201 places, 226 transitions, 693 flow. Second operand 3 states and 3622 transitions. [2023-08-25 19:21:08,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 369 transitions, 1740 flow [2023-08-25 19:21:08,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 369 transitions, 1728 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:08,516 INFO L231 Difference]: Finished difference. Result has 200 places, 226 transitions, 697 flow [2023-08-25 19:21:08,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=200, PETRI_TRANSITIONS=226} [2023-08-25 19:21:08,517 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -104 predicate places. [2023-08-25 19:21:08,517 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 226 transitions, 697 flow [2023-08-25 19:21:08,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1122.6666666666667) internal successors, (3368), 3 states have internal predecessors, (3368), 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 19:21:08,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:08,518 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:08,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:21:08,518 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:21:08,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2113728998, now seen corresponding path program 1 times [2023-08-25 19:21:08,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:08,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269332921] [2023-08-25 19:21:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:21:08,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:08,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269332921] [2023-08-25 19:21:08,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269332921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:08,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:08,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:08,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302545090] [2023-08-25 19:21:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:08,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:08,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:08,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:08,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-25 19:21:08,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 226 transitions, 697 flow. Second operand has 3 states, 3 states have (on average 1043.6666666666667) internal successors, (3131), 3 states have internal predecessors, (3131), 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 19:21:08,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:08,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-25 19:21:08,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:37,186 INFO L124 PetriNetUnfolderBase]: 273355/414780 cut-off events. [2023-08-25 19:21:37,186 INFO L125 PetriNetUnfolderBase]: For 47146/47178 co-relation queries the response was YES. [2023-08-25 19:21:39,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927594 conditions, 414780 events. 273355/414780 cut-off events. For 47146/47178 co-relation queries the response was YES. Maximal size of possible extension queue 4806. Compared 3445250 event pairs, 153254 based on Foata normal form. 0/376076 useless extension candidates. Maximal degree in co-relation 927575. Up to 274947 conditions per place. [2023-08-25 19:21:40,447 INFO L140 encePairwiseOnDemand]: 2433/2442 looper letters, 304 selfloop transitions, 6 changer transitions 0/338 dead transitions. [2023-08-25 19:21:40,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 338 transitions, 1594 flow [2023-08-25 19:21:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3389 transitions. [2023-08-25 19:21:40,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625989625989626 [2023-08-25 19:21:40,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3389 transitions. [2023-08-25 19:21:40,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3389 transitions. [2023-08-25 19:21:40,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:40,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3389 transitions. [2023-08-25 19:21:40,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1129.6666666666667) internal successors, (3389), 3 states have internal predecessors, (3389), 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 19:21:40,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:21:40,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 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 19:21:40,456 INFO L175 Difference]: Start difference. First operand has 200 places, 226 transitions, 697 flow. Second operand 3 states and 3389 transitions. [2023-08-25 19:21:40,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 338 transitions, 1594 flow [2023-08-25 19:21:40,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 338 transitions, 1594 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:40,617 INFO L231 Difference]: Finished difference. Result has 200 places, 227 transitions, 737 flow [2023-08-25 19:21:40,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=737, PETRI_PLACES=200, PETRI_TRANSITIONS=227} [2023-08-25 19:21:40,618 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -104 predicate places. [2023-08-25 19:21:40,618 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 227 transitions, 737 flow [2023-08-25 19:21:40,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1043.6666666666667) internal successors, (3131), 3 states have internal predecessors, (3131), 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 19:21:40,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:40,618 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:40,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:21:40,618 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-25 19:21:40,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:40,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1872688147, now seen corresponding path program 1 times [2023-08-25 19:21:40,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:40,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340378116] [2023-08-25 19:21:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:40,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:21:40,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:40,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340378116] [2023-08-25 19:21:40,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340378116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:40,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:40,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:40,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606588763] [2023-08-25 19:21:40,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:40,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:40,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:40,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-25 19:21:40,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 227 transitions, 737 flow. Second operand has 3 states, 3 states have (on average 1043.6666666666667) internal successors, (3131), 3 states have internal predecessors, (3131), 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 19:21:40,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:40,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-25 19:21:40,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand