/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 PROGRAM_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-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:39:13,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:39:13,498 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 [2023-08-26 08:39:13,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:39:13,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:39:13,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:39:13,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:39:13,537 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:39:13,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:39:13,541 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:39:13,541 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:39:13,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:39:13,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:39:13,543 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:39:13,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:39:13,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:39:13,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:39:13,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:39:13,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:39:13,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:39:13,544 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:39:13,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:39:13,545 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:39:13,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:39:13,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:39:13,546 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:39:13,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:39:13,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:39:13,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:39:13,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:39:13,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:39:13,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:39:13,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:39:13,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:39:13,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:39:13,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:39:13,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:39:13,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:39:13,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:39:13,877 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:39:13,877 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:39:13,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-26 08:39:14,936 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:39:15,156 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:39:15,157 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-26 08:39:15,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e8ced48/217d9dd8d1df40b4a057fe7cbdaced96/FLAG63e833f65 [2023-08-26 08:39:15,173 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e8ced48/217d9dd8d1df40b4a057fe7cbdaced96 [2023-08-26 08:39:15,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:39:15,176 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:39:15,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:39:15,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:39:15,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:39:15,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234204dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15, skipping insertion in model container [2023-08-26 08:39:15,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,199 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:39:15,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:39:15,374 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:39:15,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:39:15,428 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:39:15,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15 WrapperNode [2023-08-26 08:39:15,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:39:15,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:39:15,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:39:15,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:39:15,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,487 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 248 [2023-08-26 08:39:15,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:39:15,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:39:15,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:39:15,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:39:15,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,527 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,533 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:39:15,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:39:15,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:39:15,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:39:15,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (1/1) ... [2023-08-26 08:39:15,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:39:15,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:39:15,574 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) [2023-08-26 08:39:15,597 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 [2023-08-26 08:39:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:39:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:39:15,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:39:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:39:15,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:39:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:39:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:39:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:39:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:39:15,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:39:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:39:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:39:15,614 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:39:15,734 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:39:15,737 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:39:16,157 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:39:16,167 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:39:16,167 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 08:39:16,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:39:16 BoogieIcfgContainer [2023-08-26 08:39:16,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:39:16,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:39:16,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:39:16,174 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:39:16,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:39:15" (1/3) ... [2023-08-26 08:39:16,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac74db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:39:16, skipping insertion in model container [2023-08-26 08:39:16,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:39:15" (2/3) ... [2023-08-26 08:39:16,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac74db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:39:16, skipping insertion in model container [2023-08-26 08:39:16,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:39:16" (3/3) ... [2023-08-26 08:39:16,176 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-08-26 08:39:16,190 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:39:16,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-26 08:39:16,190 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:39:16,338 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 08:39:16,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 309 transitions, 634 flow [2023-08-26 08:39:16,449 INFO L124 PetriNetUnfolderBase]: 18/307 cut-off events. [2023-08-26 08:39:16,450 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 08:39:16,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 307 events. 18/307 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 626 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-26 08:39:16,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 309 transitions, 634 flow [2023-08-26 08:39:16,463 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 298 transitions, 608 flow [2023-08-26 08:39:16,466 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:39:16,477 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 298 transitions, 608 flow [2023-08-26 08:39:16,483 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 298 transitions, 608 flow [2023-08-26 08:39:16,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 298 transitions, 608 flow [2023-08-26 08:39:16,560 INFO L124 PetriNetUnfolderBase]: 18/298 cut-off events. [2023-08-26 08:39:16,560 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 08:39:16,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 298 events. 18/298 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 625 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-26 08:39:16,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 15476 [2023-08-26 08:39:23,289 INFO L134 LiptonReduction]: Checked pairs total: 56101 [2023-08-26 08:39:23,290 INFO L136 LiptonReduction]: Total number of compositions: 329 [2023-08-26 08:39:23,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:39:23,307 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;@185932c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:39:23,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-26 08:39:23,309 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:39:23,309 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:39:23,309 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:39:23,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:23,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:39:23,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:23,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2023-08-26 08:39:23,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:23,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414695086] [2023-08-26 08:39:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:23,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:23,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414695086] [2023-08-26 08:39:23,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414695086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:23,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:23,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:39:23,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816497320] [2023-08-26 08:39:23,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:23,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:39:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:23,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:39:23,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:39:23,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 638 [2023-08-26 08:39:23,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 84 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 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) [2023-08-26 08:39:23,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:23,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 638 [2023-08-26 08:39:23,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:23,630 INFO L124 PetriNetUnfolderBase]: 400/873 cut-off events. [2023-08-26 08:39:23,631 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-26 08:39:23,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 873 events. 400/873 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5315 event pairs, 240 based on Foata normal form. 33/689 useless extension candidates. Maximal degree in co-relation 1400. Up to 602 conditions per place. [2023-08-26 08:39:23,638 INFO L140 encePairwiseOnDemand]: 621/638 looper letters, 33 selfloop transitions, 0 changer transitions 0/67 dead transitions. [2023-08-26 08:39:23,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 67 transitions, 212 flow [2023-08-26 08:39:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:39:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:39:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 644 transitions. [2023-08-26 08:39:23,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047021943573667 [2023-08-26 08:39:23,659 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 644 transitions. [2023-08-26 08:39:23,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 644 transitions. [2023-08-26 08:39:23,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:23,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 644 transitions. [2023-08-26 08:39:23,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 322.0) internal successors, (644), 2 states have internal predecessors, (644), 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) [2023-08-26 08:39:23,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 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) [2023-08-26 08:39:23,703 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 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) [2023-08-26 08:39:23,705 INFO L175 Difference]: Start difference. First operand has 81 places, 84 transitions, 180 flow. Second operand 2 states and 644 transitions. [2023-08-26 08:39:23,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 67 transitions, 212 flow [2023-08-26 08:39:23,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 204 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:39:23,711 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 138 flow [2023-08-26 08:39:23,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=138, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-26 08:39:23,716 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-26 08:39:23,716 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 138 flow [2023-08-26 08:39:23,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 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) [2023-08-26 08:39:23,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:23,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 08:39:23,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:39:23,718 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:23,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:23,722 INFO L85 PathProgramCache]: Analyzing trace with hash 36608344, now seen corresponding path program 1 times [2023-08-26 08:39:23,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:23,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683598169] [2023-08-26 08:39:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:23,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683598169] [2023-08-26 08:39:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683598169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:23,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:39:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544741873] [2023-08-26 08:39:23,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:23,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:39:23,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:23,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:39:23,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:39:23,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-26 08:39:23,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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) [2023-08-26 08:39:23,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:23,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-26 08:39:23,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:23,975 INFO L124 PetriNetUnfolderBase]: 552/1197 cut-off events. [2023-08-26 08:39:23,976 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-26 08:39:23,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1197 events. 552/1197 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7253 event pairs, 162 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 2050. Up to 830 conditions per place. [2023-08-26 08:39:23,982 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 42 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2023-08-26 08:39:23,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 72 transitions, 239 flow [2023-08-26 08:39:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-08-26 08:39:23,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4717868338557994 [2023-08-26 08:39:23,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-08-26 08:39:23,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-08-26 08:39:23,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:23,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-08-26 08:39:23,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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) [2023-08-26 08:39:23,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:23,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:23,996 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 138 flow. Second operand 3 states and 903 transitions. [2023-08-26 08:39:23,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 72 transitions, 239 flow [2023-08-26 08:39:23,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:23,998 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 153 flow [2023-08-26 08:39:23,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-26 08:39:24,000 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-26 08:39:24,000 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 153 flow [2023-08-26 08:39:24,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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) [2023-08-26 08:39:24,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:24,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:39:24,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:39:24,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:24,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:24,004 INFO L85 PathProgramCache]: Analyzing trace with hash 832276178, now seen corresponding path program 1 times [2023-08-26 08:39:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514010136] [2023-08-26 08:39:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:24,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:24,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:24,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514010136] [2023-08-26 08:39:24,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514010136] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:24,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:24,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:39:24,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61125812] [2023-08-26 08:39:24,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:24,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:39:24,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:24,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:39:24,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:39:24,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-26 08:39:24,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 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) [2023-08-26 08:39:24,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:24,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-26 08:39:24,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:24,190 INFO L124 PetriNetUnfolderBase]: 453/1032 cut-off events. [2023-08-26 08:39:24,190 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 08:39:24,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 1032 events. 453/1032 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6418 event pairs, 144 based on Foata normal form. 0/804 useless extension candidates. Maximal degree in co-relation 1750. Up to 677 conditions per place. [2023-08-26 08:39:24,196 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 37 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2023-08-26 08:39:24,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 70 transitions, 240 flow [2023-08-26 08:39:24,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:24,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:24,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-26 08:39:24,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46917450365726227 [2023-08-26 08:39:24,199 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-26 08:39:24,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-26 08:39:24,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:24,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-26 08:39:24,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-08-26 08:39:24,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,205 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 153 flow. Second operand 3 states and 898 transitions. [2023-08-26 08:39:24,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 70 transitions, 240 flow [2023-08-26 08:39:24,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 70 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:24,208 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 168 flow [2023-08-26 08:39:24,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-26 08:39:24,209 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-26 08:39:24,209 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 168 flow [2023-08-26 08:39:24,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 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) [2023-08-26 08:39:24,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:24,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:24,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:39:24,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:24,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash -321588225, now seen corresponding path program 1 times [2023-08-26 08:39:24,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:24,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794866563] [2023-08-26 08:39:24,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:24,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:24,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794866563] [2023-08-26 08:39:24,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794866563] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:24,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:24,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:39:24,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51745763] [2023-08-26 08:39:24,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:24,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:39:24,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:24,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:39:24,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:39:24,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 638 [2023-08-26 08:39:24,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 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) [2023-08-26 08:39:24,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:24,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 638 [2023-08-26 08:39:24,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:24,411 INFO L124 PetriNetUnfolderBase]: 434/914 cut-off events. [2023-08-26 08:39:24,411 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-08-26 08:39:24,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 914 events. 434/914 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5299 event pairs, 226 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 1651. Up to 516 conditions per place. [2023-08-26 08:39:24,416 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 44 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2023-08-26 08:39:24,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 81 transitions, 297 flow [2023-08-26 08:39:24,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-26 08:39:24,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46917450365726227 [2023-08-26 08:39:24,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-26 08:39:24,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-26 08:39:24,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:24,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-26 08:39:24,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-08-26 08:39:24,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,426 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 168 flow. Second operand 3 states and 898 transitions. [2023-08-26 08:39:24,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 81 transitions, 297 flow [2023-08-26 08:39:24,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 81 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:24,430 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 178 flow [2023-08-26 08:39:24,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-26 08:39:24,432 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -17 predicate places. [2023-08-26 08:39:24,432 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 178 flow [2023-08-26 08:39:24,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 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) [2023-08-26 08:39:24,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:24,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:24,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:39:24,433 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:24,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1379357581, now seen corresponding path program 1 times [2023-08-26 08:39:24,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:24,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832520615] [2023-08-26 08:39:24,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:24,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:24,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:24,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832520615] [2023-08-26 08:39:24,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832520615] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:24,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:24,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:39:24,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587061033] [2023-08-26 08:39:24,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:24,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:39:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:39:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:39:24,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-26 08:39:24,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 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) [2023-08-26 08:39:24,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:24,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-26 08:39:24,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:24,639 INFO L124 PetriNetUnfolderBase]: 673/1365 cut-off events. [2023-08-26 08:39:24,642 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2023-08-26 08:39:24,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2740 conditions, 1365 events. 673/1365 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8306 event pairs, 175 based on Foata normal form. 0/1111 useless extension candidates. Maximal degree in co-relation 2734. Up to 738 conditions per place. [2023-08-26 08:39:24,651 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 60 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-26 08:39:24,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 87 transitions, 359 flow [2023-08-26 08:39:24,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2023-08-26 08:39:24,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48014629049111807 [2023-08-26 08:39:24,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2023-08-26 08:39:24,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2023-08-26 08:39:24,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:24,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2023-08-26 08:39:24,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2023-08-26 08:39:24,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,662 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 178 flow. Second operand 3 states and 919 transitions. [2023-08-26 08:39:24,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 87 transitions, 359 flow [2023-08-26 08:39:24,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:24,672 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 181 flow [2023-08-26 08:39:24,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-26 08:39:24,676 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -19 predicate places. [2023-08-26 08:39:24,676 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 181 flow [2023-08-26 08:39:24,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 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) [2023-08-26 08:39:24,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:24,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:24,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:39:24,677 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:24,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:24,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1581831165, now seen corresponding path program 1 times [2023-08-26 08:39:24,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:24,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119669089] [2023-08-26 08:39:24,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:24,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:24,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:24,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119669089] [2023-08-26 08:39:24,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119669089] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:24,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:24,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:39:24,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245810097] [2023-08-26 08:39:24,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:24,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:39:24,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:39:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:39:24,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-26 08:39:24,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 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) [2023-08-26 08:39:24,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:24,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-26 08:39:24,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:24,931 INFO L124 PetriNetUnfolderBase]: 708/1404 cut-off events. [2023-08-26 08:39:24,932 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-26 08:39:24,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2736 conditions, 1404 events. 708/1404 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8215 event pairs, 187 based on Foata normal form. 0/1130 useless extension candidates. Maximal degree in co-relation 2730. Up to 789 conditions per place. [2023-08-26 08:39:24,940 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 60 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-26 08:39:24,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 87 transitions, 356 flow [2023-08-26 08:39:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2023-08-26 08:39:24,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48014629049111807 [2023-08-26 08:39:24,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2023-08-26 08:39:24,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2023-08-26 08:39:24,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:24,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2023-08-26 08:39:24,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2023-08-26 08:39:24,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:24,951 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 181 flow. Second operand 3 states and 919 transitions. [2023-08-26 08:39:24,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 87 transitions, 356 flow [2023-08-26 08:39:24,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:24,957 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 196 flow [2023-08-26 08:39:24,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-26 08:39:24,959 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -19 predicate places. [2023-08-26 08:39:24,959 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 196 flow [2023-08-26 08:39:24,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 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) [2023-08-26 08:39:24,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:24,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:24,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 08:39:24,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:24,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:24,961 INFO L85 PathProgramCache]: Analyzing trace with hash 341257858, now seen corresponding path program 1 times [2023-08-26 08:39:24,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:24,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956496332] [2023-08-26 08:39:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:24,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:25,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956496332] [2023-08-26 08:39:25,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956496332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:25,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:25,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:39:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597866815] [2023-08-26 08:39:25,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:25,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:39:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:25,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:39:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:39:25,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 638 [2023-08-26 08:39:25,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 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) [2023-08-26 08:39:25,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:25,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 638 [2023-08-26 08:39:25,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:25,189 INFO L124 PetriNetUnfolderBase]: 751/1399 cut-off events. [2023-08-26 08:39:25,189 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-26 08:39:25,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1399 events. 751/1399 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7756 event pairs, 331 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 2858. Up to 767 conditions per place. [2023-08-26 08:39:25,197 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 65 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-26 08:39:25,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 94 transitions, 393 flow [2023-08-26 08:39:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2023-08-26 08:39:25,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864158829676071 [2023-08-26 08:39:25,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2023-08-26 08:39:25,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2023-08-26 08:39:25,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:25,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2023-08-26 08:39:25,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 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) [2023-08-26 08:39:25,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:25,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:25,207 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 196 flow. Second operand 3 states and 931 transitions. [2023-08-26 08:39:25,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 94 transitions, 393 flow [2023-08-26 08:39:25,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 94 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:25,210 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 206 flow [2023-08-26 08:39:25,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2023-08-26 08:39:25,211 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-26 08:39:25,211 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 206 flow [2023-08-26 08:39:25,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 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) [2023-08-26 08:39:25,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:25,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:25,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:39:25,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:25,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:25,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1340250217, now seen corresponding path program 1 times [2023-08-26 08:39:25,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:25,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637967405] [2023-08-26 08:39:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:25,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:25,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:25,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637967405] [2023-08-26 08:39:25,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637967405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:25,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:25,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:39:25,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957337658] [2023-08-26 08:39:25,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:25,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:39:25,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:25,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:39:25,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:39:25,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 638 [2023-08-26 08:39:25,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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) [2023-08-26 08:39:25,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:25,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 638 [2023-08-26 08:39:25,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:25,413 INFO L124 PetriNetUnfolderBase]: 761/1401 cut-off events. [2023-08-26 08:39:25,413 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-26 08:39:25,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 1401 events. 761/1401 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7585 event pairs, 337 based on Foata normal form. 0/1163 useless extension candidates. Maximal degree in co-relation 2980. Up to 761 conditions per place. [2023-08-26 08:39:25,421 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 66 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-26 08:39:25,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 408 flow [2023-08-26 08:39:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:25,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2023-08-26 08:39:25,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864158829676071 [2023-08-26 08:39:25,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2023-08-26 08:39:25,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2023-08-26 08:39:25,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:25,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2023-08-26 08:39:25,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 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) [2023-08-26 08:39:25,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:25,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 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) [2023-08-26 08:39:25,430 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 206 flow. Second operand 3 states and 931 transitions. [2023-08-26 08:39:25,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 408 flow [2023-08-26 08:39:25,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 94 transitions, 408 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:25,432 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 216 flow [2023-08-26 08:39:25,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-26 08:39:25,434 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -17 predicate places. [2023-08-26 08:39:25,434 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 216 flow [2023-08-26 08:39:25,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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) [2023-08-26 08:39:25,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:25,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:25,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:39:25,435 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:25,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1440892745, now seen corresponding path program 1 times [2023-08-26 08:39:25,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:25,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905039732] [2023-08-26 08:39:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:25,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:25,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:25,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905039732] [2023-08-26 08:39:25,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905039732] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:25,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:25,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:25,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825385340] [2023-08-26 08:39:25,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:25,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:25,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:25,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:25,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:25,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:25,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:25,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:25,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:25,916 INFO L124 PetriNetUnfolderBase]: 753/1587 cut-off events. [2023-08-26 08:39:25,916 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-08-26 08:39:25,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1587 events. 753/1587 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10224 event pairs, 155 based on Foata normal form. 2/1387 useless extension candidates. Maximal degree in co-relation 3464. Up to 845 conditions per place. [2023-08-26 08:39:25,925 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 63 selfloop transitions, 4 changer transitions 8/104 dead transitions. [2023-08-26 08:39:25,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 460 flow [2023-08-26 08:39:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1475 transitions. [2023-08-26 08:39:25,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46238244514106586 [2023-08-26 08:39:25,929 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1475 transitions. [2023-08-26 08:39:25,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1475 transitions. [2023-08-26 08:39:25,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:25,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1475 transitions. [2023-08-26 08:39:25,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 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) [2023-08-26 08:39:25,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:25,938 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:25,938 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 216 flow. Second operand 5 states and 1475 transitions. [2023-08-26 08:39:25,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 460 flow [2023-08-26 08:39:25,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 104 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:25,941 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 250 flow [2023-08-26 08:39:25,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2023-08-26 08:39:25,942 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -9 predicate places. [2023-08-26 08:39:25,942 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 250 flow [2023-08-26 08:39:25,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:25,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:25,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:25,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:39:25,943 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:25,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:25,943 INFO L85 PathProgramCache]: Analyzing trace with hash -932150495, now seen corresponding path program 2 times [2023-08-26 08:39:25,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:25,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951608630] [2023-08-26 08:39:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:25,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:26,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:26,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:26,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951608630] [2023-08-26 08:39:26,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951608630] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:26,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:26,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:26,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554799730] [2023-08-26 08:39:26,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:26,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:26,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:26,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:26,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:26,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:26,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:26,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:26,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:26,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:26,356 INFO L124 PetriNetUnfolderBase]: 902/1900 cut-off events. [2023-08-26 08:39:26,356 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2023-08-26 08:39:26,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 1900 events. 902/1900 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 13058 event pairs, 546 based on Foata normal form. 2/1716 useless extension candidates. Maximal degree in co-relation 4482. Up to 1216 conditions per place. [2023-08-26 08:39:26,368 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 70 selfloop transitions, 2 changer transitions 8/109 dead transitions. [2023-08-26 08:39:26,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 531 flow [2023-08-26 08:39:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1475 transitions. [2023-08-26 08:39:26,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46238244514106586 [2023-08-26 08:39:26,372 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1475 transitions. [2023-08-26 08:39:26,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1475 transitions. [2023-08-26 08:39:26,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:26,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1475 transitions. [2023-08-26 08:39:26,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 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) [2023-08-26 08:39:26,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:26,381 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:26,381 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 250 flow. Second operand 5 states and 1475 transitions. [2023-08-26 08:39:26,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 531 flow [2023-08-26 08:39:26,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 109 transitions, 516 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:26,385 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 264 flow [2023-08-26 08:39:26,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2023-08-26 08:39:26,386 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-26 08:39:26,386 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 264 flow [2023-08-26 08:39:26,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:26,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:26,386 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:26,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 08:39:26,387 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:26,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1337850704, now seen corresponding path program 1 times [2023-08-26 08:39:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31871143] [2023-08-26 08:39:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:26,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:26,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:26,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31871143] [2023-08-26 08:39:26,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31871143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:26,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:26,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:26,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959148287] [2023-08-26 08:39:26,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:26,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:39:26,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:26,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:39:26,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:39:26,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-26 08:39:26,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:26,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:26,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-26 08:39:26,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:27,019 INFO L124 PetriNetUnfolderBase]: 1010/2269 cut-off events. [2023-08-26 08:39:27,019 INFO L125 PetriNetUnfolderBase]: For 869/871 co-relation queries the response was YES. [2023-08-26 08:39:27,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5379 conditions, 2269 events. 1010/2269 cut-off events. For 869/871 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16285 event pairs, 124 based on Foata normal form. 19/2124 useless extension candidates. Maximal degree in co-relation 5363. Up to 605 conditions per place. [2023-08-26 08:39:27,033 INFO L140 encePairwiseOnDemand]: 620/638 looper letters, 109 selfloop transitions, 32 changer transitions 5/175 dead transitions. [2023-08-26 08:39:27,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 175 transitions, 904 flow [2023-08-26 08:39:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 08:39:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 08:39:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2599 transitions. [2023-08-26 08:39:27,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45262974573319403 [2023-08-26 08:39:27,040 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2599 transitions. [2023-08-26 08:39:27,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2599 transitions. [2023-08-26 08:39:27,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:27,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2599 transitions. [2023-08-26 08:39:27,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 288.77777777777777) internal successors, (2599), 9 states have internal predecessors, (2599), 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) [2023-08-26 08:39:27,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 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) [2023-08-26 08:39:27,054 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 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) [2023-08-26 08:39:27,054 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 264 flow. Second operand 9 states and 2599 transitions. [2023-08-26 08:39:27,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 175 transitions, 904 flow [2023-08-26 08:39:27,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 175 transitions, 889 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:27,060 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 524 flow [2023-08-26 08:39:27,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=524, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2023-08-26 08:39:27,061 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 7 predicate places. [2023-08-26 08:39:27,061 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 524 flow [2023-08-26 08:39:27,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:27,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:27,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:27,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:39:27,062 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:27,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash -928608975, now seen corresponding path program 3 times [2023-08-26 08:39:27,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:27,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930069684] [2023-08-26 08:39:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:27,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:27,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:27,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930069684] [2023-08-26 08:39:27,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930069684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:27,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:27,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:27,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819523358] [2023-08-26 08:39:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:27,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:27,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:27,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:27,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:27,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:27,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 524 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:27,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:27,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:27,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:27,473 INFO L124 PetriNetUnfolderBase]: 1007/2238 cut-off events. [2023-08-26 08:39:27,473 INFO L125 PetriNetUnfolderBase]: For 2549/2563 co-relation queries the response was YES. [2023-08-26 08:39:27,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6247 conditions, 2238 events. 1007/2238 cut-off events. For 2549/2563 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16068 event pairs, 327 based on Foata normal form. 7/2089 useless extension candidates. Maximal degree in co-relation 6226. Up to 1355 conditions per place. [2023-08-26 08:39:27,489 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 87 selfloop transitions, 6 changer transitions 10/132 dead transitions. [2023-08-26 08:39:27,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 132 transitions, 888 flow [2023-08-26 08:39:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:27,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:27,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1469 transitions. [2023-08-26 08:39:27,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46050156739811915 [2023-08-26 08:39:27,493 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1469 transitions. [2023-08-26 08:39:27,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1469 transitions. [2023-08-26 08:39:27,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:27,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1469 transitions. [2023-08-26 08:39:27,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.8) internal successors, (1469), 5 states have internal predecessors, (1469), 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) [2023-08-26 08:39:27,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:27,500 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:27,501 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 524 flow. Second operand 5 states and 1469 transitions. [2023-08-26 08:39:27,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 132 transitions, 888 flow [2023-08-26 08:39:27,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 132 transitions, 860 flow, removed 14 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:27,512 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 535 flow [2023-08-26 08:39:27,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=535, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2023-08-26 08:39:27,512 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-26 08:39:27,513 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 535 flow [2023-08-26 08:39:27,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:27,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:27,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:27,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 08:39:27,513 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:27,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:27,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1917284318, now seen corresponding path program 2 times [2023-08-26 08:39:27,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:27,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586935945] [2023-08-26 08:39:27,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:27,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:27,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:27,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586935945] [2023-08-26 08:39:27,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586935945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:27,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:27,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:27,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118816693] [2023-08-26 08:39:27,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:27,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:39:27,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:27,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:39:27,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:39:27,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-26 08:39:27,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:27,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:27,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-26 08:39:27,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:28,022 INFO L124 PetriNetUnfolderBase]: 976/2137 cut-off events. [2023-08-26 08:39:28,022 INFO L125 PetriNetUnfolderBase]: For 2938/2957 co-relation queries the response was YES. [2023-08-26 08:39:28,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6055 conditions, 2137 events. 976/2137 cut-off events. For 2938/2957 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 15049 event pairs, 297 based on Foata normal form. 13/2006 useless extension candidates. Maximal degree in co-relation 6030. Up to 1371 conditions per place. [2023-08-26 08:39:28,042 INFO L140 encePairwiseOnDemand]: 624/638 looper letters, 82 selfloop transitions, 22 changer transitions 9/142 dead transitions. [2023-08-26 08:39:28,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 142 transitions, 959 flow [2023-08-26 08:39:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 08:39:28,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 08:39:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2003 transitions. [2023-08-26 08:39:28,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44849977608598296 [2023-08-26 08:39:28,047 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2003 transitions. [2023-08-26 08:39:28,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2003 transitions. [2023-08-26 08:39:28,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:28,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2003 transitions. [2023-08-26 08:39:28,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 286.14285714285717) internal successors, (2003), 7 states have internal predecessors, (2003), 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) [2023-08-26 08:39:28,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 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) [2023-08-26 08:39:28,057 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 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) [2023-08-26 08:39:28,057 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 535 flow. Second operand 7 states and 2003 transitions. [2023-08-26 08:39:28,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 142 transitions, 959 flow [2023-08-26 08:39:28,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 142 transitions, 948 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:28,070 INFO L231 Difference]: Finished difference. Result has 101 places, 98 transitions, 630 flow [2023-08-26 08:39:28,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=630, PETRI_PLACES=101, PETRI_TRANSITIONS=98} [2023-08-26 08:39:28,071 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 20 predicate places. [2023-08-26 08:39:28,071 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 98 transitions, 630 flow [2023-08-26 08:39:28,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:28,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:28,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:28,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 08:39:28,072 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:28,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:28,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1166658950, now seen corresponding path program 3 times [2023-08-26 08:39:28,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:28,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134716982] [2023-08-26 08:39:28,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:28,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:28,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:28,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134716982] [2023-08-26 08:39:28,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134716982] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:28,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:28,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:28,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876678583] [2023-08-26 08:39:28,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:28,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:39:28,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:28,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:39:28,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:39:28,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-26 08:39:28,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 98 transitions, 630 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:28,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:28,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-26 08:39:28,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:28,620 INFO L124 PetriNetUnfolderBase]: 835/1848 cut-off events. [2023-08-26 08:39:28,620 INFO L125 PetriNetUnfolderBase]: For 2987/3000 co-relation queries the response was YES. [2023-08-26 08:39:28,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5607 conditions, 1848 events. 835/1848 cut-off events. For 2987/3000 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 12401 event pairs, 212 based on Foata normal form. 29/1759 useless extension candidates. Maximal degree in co-relation 5580. Up to 889 conditions per place. [2023-08-26 08:39:28,632 INFO L140 encePairwiseOnDemand]: 622/638 looper letters, 88 selfloop transitions, 26 changer transitions 14/157 dead transitions. [2023-08-26 08:39:28,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 157 transitions, 1109 flow [2023-08-26 08:39:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 08:39:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 08:39:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2299 transitions. [2023-08-26 08:39:28,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4504310344827586 [2023-08-26 08:39:28,639 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2299 transitions. [2023-08-26 08:39:28,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2299 transitions. [2023-08-26 08:39:28,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:28,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2299 transitions. [2023-08-26 08:39:28,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 287.375) internal successors, (2299), 8 states have internal predecessors, (2299), 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) [2023-08-26 08:39:28,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 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) [2023-08-26 08:39:28,651 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 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) [2023-08-26 08:39:28,651 INFO L175 Difference]: Start difference. First operand has 101 places, 98 transitions, 630 flow. Second operand 8 states and 2299 transitions. [2023-08-26 08:39:28,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 157 transitions, 1109 flow [2023-08-26 08:39:28,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 157 transitions, 1061 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-26 08:39:28,663 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 654 flow [2023-08-26 08:39:28,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=654, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2023-08-26 08:39:28,664 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 24 predicate places. [2023-08-26 08:39:28,664 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 654 flow [2023-08-26 08:39:28,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:28,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:28,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:28,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 08:39:28,665 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:28,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:28,665 INFO L85 PathProgramCache]: Analyzing trace with hash -218850480, now seen corresponding path program 4 times [2023-08-26 08:39:28,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:28,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442518542] [2023-08-26 08:39:28,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:28,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:28,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:28,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442518542] [2023-08-26 08:39:28,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442518542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:28,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:28,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:28,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290830831] [2023-08-26 08:39:28,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:28,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:39:28,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:28,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:39:28,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:39:28,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-26 08:39:28,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:28,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:28,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-26 08:39:28,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:29,122 INFO L124 PetriNetUnfolderBase]: 800/1759 cut-off events. [2023-08-26 08:39:29,122 INFO L125 PetriNetUnfolderBase]: For 3292/3311 co-relation queries the response was YES. [2023-08-26 08:39:29,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5419 conditions, 1759 events. 800/1759 cut-off events. For 3292/3311 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 11648 event pairs, 190 based on Foata normal form. 15/1656 useless extension candidates. Maximal degree in co-relation 5392. Up to 889 conditions per place. [2023-08-26 08:39:29,134 INFO L140 encePairwiseOnDemand]: 624/638 looper letters, 82 selfloop transitions, 23 changer transitions 18/152 dead transitions. [2023-08-26 08:39:29,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 152 transitions, 1066 flow [2023-08-26 08:39:29,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 08:39:29,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 08:39:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2019 transitions. [2023-08-26 08:39:29,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4520824003582624 [2023-08-26 08:39:29,140 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2019 transitions. [2023-08-26 08:39:29,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2019 transitions. [2023-08-26 08:39:29,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:29,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2019 transitions. [2023-08-26 08:39:29,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 288.42857142857144) internal successors, (2019), 7 states have internal predecessors, (2019), 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) [2023-08-26 08:39:29,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 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) [2023-08-26 08:39:29,150 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 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) [2023-08-26 08:39:29,150 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 654 flow. Second operand 7 states and 2019 transitions. [2023-08-26 08:39:29,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 152 transitions, 1066 flow [2023-08-26 08:39:29,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 152 transitions, 1024 flow, removed 13 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:29,163 INFO L231 Difference]: Finished difference. Result has 108 places, 93 transitions, 618 flow [2023-08-26 08:39:29,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=618, PETRI_PLACES=108, PETRI_TRANSITIONS=93} [2023-08-26 08:39:29,164 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 27 predicate places. [2023-08-26 08:39:29,164 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 93 transitions, 618 flow [2023-08-26 08:39:29,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-08-26 08:39:29,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:29,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:29,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 08:39:29,165 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:29,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:29,165 INFO L85 PathProgramCache]: Analyzing trace with hash 536260888, now seen corresponding path program 1 times [2023-08-26 08:39:29,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:29,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223983575] [2023-08-26 08:39:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:29,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:29,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:29,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:29,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223983575] [2023-08-26 08:39:29,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223983575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:29,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:29,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:29,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573614631] [2023-08-26 08:39:29,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:29,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:29,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:29,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:29,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:29,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:29,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 93 transitions, 618 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:29,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:29,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:29,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:29,489 INFO L124 PetriNetUnfolderBase]: 628/1457 cut-off events. [2023-08-26 08:39:29,490 INFO L125 PetriNetUnfolderBase]: For 2630/2630 co-relation queries the response was YES. [2023-08-26 08:39:29,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 1457 events. 628/1457 cut-off events. For 2630/2630 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 9307 event pairs, 212 based on Foata normal form. 43/1396 useless extension candidates. Maximal degree in co-relation 4256. Up to 1082 conditions per place. [2023-08-26 08:39:29,500 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 58 selfloop transitions, 5 changer transitions 8/100 dead transitions. [2023-08-26 08:39:29,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 100 transitions, 672 flow [2023-08-26 08:39:29,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1457 transitions. [2023-08-26 08:39:29,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567398119122257 [2023-08-26 08:39:29,504 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1457 transitions. [2023-08-26 08:39:29,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1457 transitions. [2023-08-26 08:39:29,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:29,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1457 transitions. [2023-08-26 08:39:29,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 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) [2023-08-26 08:39:29,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:29,511 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:29,511 INFO L175 Difference]: Start difference. First operand has 108 places, 93 transitions, 618 flow. Second operand 5 states and 1457 transitions. [2023-08-26 08:39:29,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 100 transitions, 672 flow [2023-08-26 08:39:29,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 100 transitions, 579 flow, removed 10 selfloop flow, removed 13 redundant places. [2023-08-26 08:39:29,519 INFO L231 Difference]: Finished difference. Result has 93 places, 80 transitions, 407 flow [2023-08-26 08:39:29,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=407, PETRI_PLACES=93, PETRI_TRANSITIONS=80} [2023-08-26 08:39:29,519 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2023-08-26 08:39:29,519 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 80 transitions, 407 flow [2023-08-26 08:39:29,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:29,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:29,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:29,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 08:39:29,520 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:29,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:29,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2141422464, now seen corresponding path program 2 times [2023-08-26 08:39:29,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:29,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108922246] [2023-08-26 08:39:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:29,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:29,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108922246] [2023-08-26 08:39:29,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108922246] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:29,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:29,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:29,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311548556] [2023-08-26 08:39:29,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:29,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:29,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:29,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:29,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:29,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 80 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:29,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:29,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:29,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:29,805 INFO L124 PetriNetUnfolderBase]: 613/1408 cut-off events. [2023-08-26 08:39:29,805 INFO L125 PetriNetUnfolderBase]: For 1095/1095 co-relation queries the response was YES. [2023-08-26 08:39:29,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3757 conditions, 1408 events. 613/1408 cut-off events. For 1095/1095 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8997 event pairs, 422 based on Foata normal form. 1/1279 useless extension candidates. Maximal degree in co-relation 3735. Up to 1062 conditions per place. [2023-08-26 08:39:29,813 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 54 selfloop transitions, 3 changer transitions 10/96 dead transitions. [2023-08-26 08:39:29,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 96 transitions, 589 flow [2023-08-26 08:39:29,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:29,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1449 transitions. [2023-08-26 08:39:29,818 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4542319749216301 [2023-08-26 08:39:29,818 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1449 transitions. [2023-08-26 08:39:29,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1449 transitions. [2023-08-26 08:39:29,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:29,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1449 transitions. [2023-08-26 08:39:29,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 289.8) internal successors, (1449), 5 states have internal predecessors, (1449), 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) [2023-08-26 08:39:29,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:29,826 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:29,826 INFO L175 Difference]: Start difference. First operand has 93 places, 80 transitions, 407 flow. Second operand 5 states and 1449 transitions. [2023-08-26 08:39:29,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 96 transitions, 589 flow [2023-08-26 08:39:29,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 96 transitions, 576 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-26 08:39:29,831 INFO L231 Difference]: Finished difference. Result has 95 places, 79 transitions, 406 flow [2023-08-26 08:39:29,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2023-08-26 08:39:29,832 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-26 08:39:29,832 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 406 flow [2023-08-26 08:39:29,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:29,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:29,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:29,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 08:39:29,833 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:29,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 967761938, now seen corresponding path program 3 times [2023-08-26 08:39:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:29,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187361364] [2023-08-26 08:39:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:29,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:29,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187361364] [2023-08-26 08:39:29,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187361364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:29,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:29,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:29,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549937232] [2023-08-26 08:39:29,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:29,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:29,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:29,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:29,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:29,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:29,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:29,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:29,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:29,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:30,147 INFO L124 PetriNetUnfolderBase]: 684/1597 cut-off events. [2023-08-26 08:39:30,148 INFO L125 PetriNetUnfolderBase]: For 1140/1146 co-relation queries the response was YES. [2023-08-26 08:39:30,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4177 conditions, 1597 events. 684/1597 cut-off events. For 1140/1146 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 10666 event pairs, 236 based on Foata normal form. 7/1487 useless extension candidates. Maximal degree in co-relation 4154. Up to 970 conditions per place. [2023-08-26 08:39:30,155 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 59 selfloop transitions, 6 changer transitions 15/107 dead transitions. [2023-08-26 08:39:30,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 107 transitions, 650 flow [2023-08-26 08:39:30,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:30,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:30,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1465 transitions. [2023-08-26 08:39:30,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592476489028213 [2023-08-26 08:39:30,160 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1465 transitions. [2023-08-26 08:39:30,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1465 transitions. [2023-08-26 08:39:30,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:30,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1465 transitions. [2023-08-26 08:39:30,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2023-08-26 08:39:30,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:30,168 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:30,168 INFO L175 Difference]: Start difference. First operand has 95 places, 79 transitions, 406 flow. Second operand 5 states and 1465 transitions. [2023-08-26 08:39:30,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 107 transitions, 650 flow [2023-08-26 08:39:30,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 107 transitions, 639 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-26 08:39:30,174 INFO L231 Difference]: Finished difference. Result has 95 places, 70 transitions, 343 flow [2023-08-26 08:39:30,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=343, PETRI_PLACES=95, PETRI_TRANSITIONS=70} [2023-08-26 08:39:30,175 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-26 08:39:30,175 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 343 flow [2023-08-26 08:39:30,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 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) [2023-08-26 08:39:30,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:30,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:30,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 08:39:30,176 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:30,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1767042383, now seen corresponding path program 1 times [2023-08-26 08:39:30,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:30,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36541930] [2023-08-26 08:39:30,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:30,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:30,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:30,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36541930] [2023-08-26 08:39:30,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36541930] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:30,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:30,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:30,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737303008] [2023-08-26 08:39:30,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:30,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:30,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:30,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:30,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:30,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:30,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 70 transitions, 343 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:30,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:30,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:30,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:30,541 INFO L124 PetriNetUnfolderBase]: 631/1558 cut-off events. [2023-08-26 08:39:30,542 INFO L125 PetriNetUnfolderBase]: For 1126/1132 co-relation queries the response was YES. [2023-08-26 08:39:30,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3987 conditions, 1558 events. 631/1558 cut-off events. For 1126/1132 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10687 event pairs, 225 based on Foata normal form. 23/1489 useless extension candidates. Maximal degree in co-relation 3965. Up to 490 conditions per place. [2023-08-26 08:39:30,552 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 75 selfloop transitions, 4 changer transitions 8/114 dead transitions. [2023-08-26 08:39:30,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 114 transitions, 666 flow [2023-08-26 08:39:30,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:30,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:30,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1474 transitions. [2023-08-26 08:39:30,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2023-08-26 08:39:30,557 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1474 transitions. [2023-08-26 08:39:30,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1474 transitions. [2023-08-26 08:39:30,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:30,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1474 transitions. [2023-08-26 08:39:30,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 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) [2023-08-26 08:39:30,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:30,564 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:30,564 INFO L175 Difference]: Start difference. First operand has 95 places, 70 transitions, 343 flow. Second operand 5 states and 1474 transitions. [2023-08-26 08:39:30,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 114 transitions, 666 flow [2023-08-26 08:39:30,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 114 transitions, 642 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-26 08:39:30,595 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 362 flow [2023-08-26 08:39:30,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2023-08-26 08:39:30,595 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 8 predicate places. [2023-08-26 08:39:30,595 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 362 flow [2023-08-26 08:39:30,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:30,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:30,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:30,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 08:39:30,596 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:30,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:30,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1947371577, now seen corresponding path program 1 times [2023-08-26 08:39:30,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:30,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002644638] [2023-08-26 08:39:30,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:30,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:30,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:30,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:30,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002644638] [2023-08-26 08:39:30,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002644638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:30,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:30,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:30,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081209047] [2023-08-26 08:39:30,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:30,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:30,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:30,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:30,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:30,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:30,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:30,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:30,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:30,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:30,951 INFO L124 PetriNetUnfolderBase]: 612/1581 cut-off events. [2023-08-26 08:39:30,951 INFO L125 PetriNetUnfolderBase]: For 1424/1424 co-relation queries the response was YES. [2023-08-26 08:39:30,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4228 conditions, 1581 events. 612/1581 cut-off events. For 1424/1424 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 11092 event pairs, 245 based on Foata normal form. 21/1556 useless extension candidates. Maximal degree in co-relation 4208. Up to 611 conditions per place. [2023-08-26 08:39:30,962 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 72 selfloop transitions, 4 changer transitions 7/110 dead transitions. [2023-08-26 08:39:30,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 110 transitions, 678 flow [2023-08-26 08:39:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:30,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1467 transitions. [2023-08-26 08:39:30,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4598746081504702 [2023-08-26 08:39:30,967 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1467 transitions. [2023-08-26 08:39:30,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1467 transitions. [2023-08-26 08:39:30,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:30,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1467 transitions. [2023-08-26 08:39:30,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.4) internal successors, (1467), 5 states have internal predecessors, (1467), 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) [2023-08-26 08:39:30,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:30,974 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:30,974 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 362 flow. Second operand 5 states and 1467 transitions. [2023-08-26 08:39:30,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 110 transitions, 678 flow [2023-08-26 08:39:30,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 666 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:30,981 INFO L231 Difference]: Finished difference. Result has 94 places, 76 transitions, 406 flow [2023-08-26 08:39:30,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=94, PETRI_TRANSITIONS=76} [2023-08-26 08:39:30,981 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 13 predicate places. [2023-08-26 08:39:30,982 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 76 transitions, 406 flow [2023-08-26 08:39:30,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:30,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:30,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:30,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 08:39:30,983 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:30,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:30,983 INFO L85 PathProgramCache]: Analyzing trace with hash -471974612, now seen corresponding path program 1 times [2023-08-26 08:39:30,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:30,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606992979] [2023-08-26 08:39:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:30,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:31,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:31,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606992979] [2023-08-26 08:39:31,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606992979] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:31,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:31,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658163325] [2023-08-26 08:39:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:31,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:39:31,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:39:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:39:31,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-26 08:39:31,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 76 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-08-26 08:39:31,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:31,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-26 08:39:31,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:31,437 INFO L124 PetriNetUnfolderBase]: 524/1343 cut-off events. [2023-08-26 08:39:31,437 INFO L125 PetriNetUnfolderBase]: For 1550/1584 co-relation queries the response was YES. [2023-08-26 08:39:31,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3781 conditions, 1343 events. 524/1343 cut-off events. For 1550/1584 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 8928 event pairs, 149 based on Foata normal form. 33/1352 useless extension candidates. Maximal degree in co-relation 3758. Up to 481 conditions per place. [2023-08-26 08:39:31,446 INFO L140 encePairwiseOnDemand]: 622/638 looper letters, 85 selfloop transitions, 17 changer transitions 14/143 dead transitions. [2023-08-26 08:39:31,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 143 transitions, 902 flow [2023-08-26 08:39:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 08:39:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 08:39:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2836 transitions. [2023-08-26 08:39:31,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4445141065830721 [2023-08-26 08:39:31,452 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2836 transitions. [2023-08-26 08:39:31,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2836 transitions. [2023-08-26 08:39:31,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:31,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2836 transitions. [2023-08-26 08:39:31,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 283.6) internal successors, (2836), 10 states have internal predecessors, (2836), 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) [2023-08-26 08:39:31,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 638.0) internal successors, (7018), 11 states have internal predecessors, (7018), 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) [2023-08-26 08:39:31,463 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 638.0) internal successors, (7018), 11 states have internal predecessors, (7018), 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) [2023-08-26 08:39:31,463 INFO L175 Difference]: Start difference. First operand has 94 places, 76 transitions, 406 flow. Second operand 10 states and 2836 transitions. [2023-08-26 08:39:31,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 143 transitions, 902 flow [2023-08-26 08:39:31,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 143 transitions, 894 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-26 08:39:31,471 INFO L231 Difference]: Finished difference. Result has 106 places, 80 transitions, 485 flow [2023-08-26 08:39:31,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=485, PETRI_PLACES=106, PETRI_TRANSITIONS=80} [2023-08-26 08:39:31,471 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2023-08-26 08:39:31,471 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 80 transitions, 485 flow [2023-08-26 08:39:31,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-08-26 08:39:31,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:31,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:31,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 08:39:31,472 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:31,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:31,472 INFO L85 PathProgramCache]: Analyzing trace with hash -28812459, now seen corresponding path program 2 times [2023-08-26 08:39:31,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:31,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247804197] [2023-08-26 08:39:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:31,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:31,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247804197] [2023-08-26 08:39:31,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247804197] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:31,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:31,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:31,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034524687] [2023-08-26 08:39:31,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:31,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:31,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:31,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:31,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:31,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:31,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 80 transitions, 485 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:31,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:31,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:31,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:31,842 INFO L124 PetriNetUnfolderBase]: 499/1305 cut-off events. [2023-08-26 08:39:31,842 INFO L125 PetriNetUnfolderBase]: For 2314/2328 co-relation queries the response was YES. [2023-08-26 08:39:31,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3907 conditions, 1305 events. 499/1305 cut-off events. For 2314/2328 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 8629 event pairs, 238 based on Foata normal form. 12/1297 useless extension candidates. Maximal degree in co-relation 3879. Up to 490 conditions per place. [2023-08-26 08:39:31,851 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 70 selfloop transitions, 4 changer transitions 10/111 dead transitions. [2023-08-26 08:39:31,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 766 flow [2023-08-26 08:39:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1465 transitions. [2023-08-26 08:39:31,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592476489028213 [2023-08-26 08:39:31,854 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1465 transitions. [2023-08-26 08:39:31,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1465 transitions. [2023-08-26 08:39:31,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:31,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1465 transitions. [2023-08-26 08:39:31,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2023-08-26 08:39:31,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:31,859 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:31,859 INFO L175 Difference]: Start difference. First operand has 106 places, 80 transitions, 485 flow. Second operand 5 states and 1465 transitions. [2023-08-26 08:39:31,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 766 flow [2023-08-26 08:39:31,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 111 transitions, 746 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:31,868 INFO L231 Difference]: Finished difference. Result has 108 places, 77 transitions, 454 flow [2023-08-26 08:39:31,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=108, PETRI_TRANSITIONS=77} [2023-08-26 08:39:31,868 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 27 predicate places. [2023-08-26 08:39:31,868 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 77 transitions, 454 flow [2023-08-26 08:39:31,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:31,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:31,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:31,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-26 08:39:31,869 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:31,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:31,869 INFO L85 PathProgramCache]: Analyzing trace with hash 72549352, now seen corresponding path program 2 times [2023-08-26 08:39:31,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:31,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171932233] [2023-08-26 08:39:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:31,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:32,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:32,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171932233] [2023-08-26 08:39:32,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171932233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:32,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:32,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:32,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193496857] [2023-08-26 08:39:32,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:32,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:39:32,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:32,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:39:32,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:39:32,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-26 08:39:32,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 77 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-08-26 08:39:32,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:32,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-26 08:39:32,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:32,372 INFO L124 PetriNetUnfolderBase]: 433/1128 cut-off events. [2023-08-26 08:39:32,372 INFO L125 PetriNetUnfolderBase]: For 2280/2310 co-relation queries the response was YES. [2023-08-26 08:39:32,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3467 conditions, 1128 events. 433/1128 cut-off events. For 2280/2310 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7212 event pairs, 124 based on Foata normal form. 23/1121 useless extension candidates. Maximal degree in co-relation 3439. Up to 447 conditions per place. [2023-08-26 08:39:32,380 INFO L140 encePairwiseOnDemand]: 625/638 looper letters, 68 selfloop transitions, 12 changer transitions 15/122 dead transitions. [2023-08-26 08:39:32,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 122 transitions, 796 flow [2023-08-26 08:39:32,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 08:39:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 08:39:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2541 transitions. [2023-08-26 08:39:32,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4425287356321839 [2023-08-26 08:39:32,384 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2541 transitions. [2023-08-26 08:39:32,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2541 transitions. [2023-08-26 08:39:32,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:32,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2541 transitions. [2023-08-26 08:39:32,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 282.3333333333333) internal successors, (2541), 9 states have internal predecessors, (2541), 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) [2023-08-26 08:39:32,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 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) [2023-08-26 08:39:32,392 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 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) [2023-08-26 08:39:32,392 INFO L175 Difference]: Start difference. First operand has 108 places, 77 transitions, 454 flow. Second operand 9 states and 2541 transitions. [2023-08-26 08:39:32,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 122 transitions, 796 flow [2023-08-26 08:39:32,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 122 transitions, 782 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 08:39:32,400 INFO L231 Difference]: Finished difference. Result has 114 places, 74 transitions, 452 flow [2023-08-26 08:39:32,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=452, PETRI_PLACES=114, PETRI_TRANSITIONS=74} [2023-08-26 08:39:32,400 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 33 predicate places. [2023-08-26 08:39:32,400 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 74 transitions, 452 flow [2023-08-26 08:39:32,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-08-26 08:39:32,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:32,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:32,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-26 08:39:32,401 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:32,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:32,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2041876265, now seen corresponding path program 2 times [2023-08-26 08:39:32,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:32,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833373523] [2023-08-26 08:39:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:32,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:32,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:32,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833373523] [2023-08-26 08:39:32,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833373523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:32,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:32,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:32,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323012263] [2023-08-26 08:39:32,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:32,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:32,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:32,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:32,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:32,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:32,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 74 transitions, 452 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:32,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:32,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:32,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:32,713 INFO L124 PetriNetUnfolderBase]: 433/1142 cut-off events. [2023-08-26 08:39:32,713 INFO L125 PetriNetUnfolderBase]: For 2479/2503 co-relation queries the response was YES. [2023-08-26 08:39:32,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3571 conditions, 1142 events. 433/1142 cut-off events. For 2479/2503 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7278 event pairs, 198 based on Foata normal form. 7/1126 useless extension candidates. Maximal degree in co-relation 3542. Up to 451 conditions per place. [2023-08-26 08:39:32,723 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 60 selfloop transitions, 2 changer transitions 11/100 dead transitions. [2023-08-26 08:39:32,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 100 transitions, 706 flow [2023-08-26 08:39:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1457 transitions. [2023-08-26 08:39:32,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567398119122257 [2023-08-26 08:39:32,725 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1457 transitions. [2023-08-26 08:39:32,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1457 transitions. [2023-08-26 08:39:32,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:32,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1457 transitions. [2023-08-26 08:39:32,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 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) [2023-08-26 08:39:32,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:32,730 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:32,730 INFO L175 Difference]: Start difference. First operand has 114 places, 74 transitions, 452 flow. Second operand 5 states and 1457 transitions. [2023-08-26 08:39:32,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 100 transitions, 706 flow [2023-08-26 08:39:32,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 100 transitions, 664 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-26 08:39:32,741 INFO L231 Difference]: Finished difference. Result has 109 places, 74 transitions, 429 flow [2023-08-26 08:39:32,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=109, PETRI_TRANSITIONS=74} [2023-08-26 08:39:32,741 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-26 08:39:32,741 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 74 transitions, 429 flow [2023-08-26 08:39:32,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:32,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:32,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:32,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-26 08:39:32,742 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:32,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:32,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1050976877, now seen corresponding path program 3 times [2023-08-26 08:39:32,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:32,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346495169] [2023-08-26 08:39:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:32,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:32,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:32,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346495169] [2023-08-26 08:39:32,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346495169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:32,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:32,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:32,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560411827] [2023-08-26 08:39:32,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:32,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:32,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:32,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:32,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:32,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:32,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 74 transitions, 429 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:32,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:32,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:32,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:33,130 INFO L124 PetriNetUnfolderBase]: 423/1110 cut-off events. [2023-08-26 08:39:33,130 INFO L125 PetriNetUnfolderBase]: For 2175/2207 co-relation queries the response was YES. [2023-08-26 08:39:33,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3372 conditions, 1110 events. 423/1110 cut-off events. For 2175/2207 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6989 event pairs, 232 based on Foata normal form. 5/1093 useless extension candidates. Maximal degree in co-relation 3344. Up to 504 conditions per place. [2023-08-26 08:39:33,138 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 58 selfloop transitions, 3 changer transitions 12/100 dead transitions. [2023-08-26 08:39:33,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 100 transitions, 669 flow [2023-08-26 08:39:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1459 transitions. [2023-08-26 08:39:33,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573667711598746 [2023-08-26 08:39:33,142 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1459 transitions. [2023-08-26 08:39:33,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1459 transitions. [2023-08-26 08:39:33,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:33,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1459 transitions. [2023-08-26 08:39:33,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.8) internal successors, (1459), 5 states have internal predecessors, (1459), 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) [2023-08-26 08:39:33,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:33,150 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:33,150 INFO L175 Difference]: Start difference. First operand has 109 places, 74 transitions, 429 flow. Second operand 5 states and 1459 transitions. [2023-08-26 08:39:33,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 100 transitions, 669 flow [2023-08-26 08:39:33,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 100 transitions, 657 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-26 08:39:33,159 INFO L231 Difference]: Finished difference. Result has 109 places, 73 transitions, 424 flow [2023-08-26 08:39:33,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=424, PETRI_PLACES=109, PETRI_TRANSITIONS=73} [2023-08-26 08:39:33,159 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-26 08:39:33,159 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 73 transitions, 424 flow [2023-08-26 08:39:33,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:33,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:33,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:33,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 08:39:33,160 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:33,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:33,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2027872018, now seen corresponding path program 3 times [2023-08-26 08:39:33,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:33,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424754275] [2023-08-26 08:39:33,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:33,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:33,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:33,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424754275] [2023-08-26 08:39:33,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424754275] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:33,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:33,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:33,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827761708] [2023-08-26 08:39:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:33,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:39:33,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:33,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:39:33,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:39:33,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-26 08:39:33,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 73 transitions, 424 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-08-26 08:39:33,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:33,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-26 08:39:33,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:33,631 INFO L124 PetriNetUnfolderBase]: 393/1031 cut-off events. [2023-08-26 08:39:33,631 INFO L125 PetriNetUnfolderBase]: For 2156/2192 co-relation queries the response was YES. [2023-08-26 08:39:33,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3217 conditions, 1031 events. 393/1031 cut-off events. For 2156/2192 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6413 event pairs, 116 based on Foata normal form. 10/1017 useless extension candidates. Maximal degree in co-relation 3190. Up to 381 conditions per place. [2023-08-26 08:39:33,638 INFO L140 encePairwiseOnDemand]: 626/638 looper letters, 65 selfloop transitions, 10 changer transitions 12/113 dead transitions. [2023-08-26 08:39:33,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 113 transitions, 734 flow [2023-08-26 08:39:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 08:39:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 08:39:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2260 transitions. [2023-08-26 08:39:33,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427899686520376 [2023-08-26 08:39:33,642 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2260 transitions. [2023-08-26 08:39:33,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2260 transitions. [2023-08-26 08:39:33,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:33,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2260 transitions. [2023-08-26 08:39:33,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 282.5) internal successors, (2260), 8 states have internal predecessors, (2260), 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) [2023-08-26 08:39:33,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 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) [2023-08-26 08:39:33,649 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 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) [2023-08-26 08:39:33,649 INFO L175 Difference]: Start difference. First operand has 109 places, 73 transitions, 424 flow. Second operand 8 states and 2260 transitions. [2023-08-26 08:39:33,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 113 transitions, 734 flow [2023-08-26 08:39:33,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 723 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-26 08:39:33,657 INFO L231 Difference]: Finished difference. Result has 112 places, 70 transitions, 421 flow [2023-08-26 08:39:33,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=421, PETRI_PLACES=112, PETRI_TRANSITIONS=70} [2023-08-26 08:39:33,658 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 31 predicate places. [2023-08-26 08:39:33,659 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 70 transitions, 421 flow [2023-08-26 08:39:33,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-08-26 08:39:33,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:33,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:33,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-26 08:39:33,659 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:33,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:33,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1489945679, now seen corresponding path program 3 times [2023-08-26 08:39:33,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:33,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383855785] [2023-08-26 08:39:33,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:33,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:33,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:33,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:33,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383855785] [2023-08-26 08:39:33,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383855785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:33,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:33,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:39:33,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590448577] [2023-08-26 08:39:33,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:33,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:33,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:33,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:33,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:33,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-26 08:39:33,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 70 transitions, 421 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:33,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:33,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-26 08:39:33,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:33,996 INFO L124 PetriNetUnfolderBase]: 370/978 cut-off events. [2023-08-26 08:39:33,996 INFO L125 PetriNetUnfolderBase]: For 2247/2275 co-relation queries the response was YES. [2023-08-26 08:39:34,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3133 conditions, 978 events. 370/978 cut-off events. For 2247/2275 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5977 event pairs, 200 based on Foata normal form. 8/960 useless extension candidates. Maximal degree in co-relation 3107. Up to 510 conditions per place. [2023-08-26 08:39:34,002 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 48 selfloop transitions, 3 changer transitions 15/91 dead transitions. [2023-08-26 08:39:34,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 91 transitions, 623 flow [2023-08-26 08:39:34,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1452 transitions. [2023-08-26 08:39:34,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45517241379310347 [2023-08-26 08:39:34,005 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1452 transitions. [2023-08-26 08:39:34,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1452 transitions. [2023-08-26 08:39:34,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:34,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1452 transitions. [2023-08-26 08:39:34,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 290.4) internal successors, (1452), 5 states have internal predecessors, (1452), 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) [2023-08-26 08:39:34,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:34,012 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:34,012 INFO L175 Difference]: Start difference. First operand has 112 places, 70 transitions, 421 flow. Second operand 5 states and 1452 transitions. [2023-08-26 08:39:34,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 91 transitions, 623 flow [2023-08-26 08:39:34,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 91 transitions, 601 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-26 08:39:34,018 INFO L231 Difference]: Finished difference. Result has 109 places, 68 transitions, 399 flow [2023-08-26 08:39:34,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=109, PETRI_TRANSITIONS=68} [2023-08-26 08:39:34,019 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-26 08:39:34,019 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 68 transitions, 399 flow [2023-08-26 08:39:34,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 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) [2023-08-26 08:39:34,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:34,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:34,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-26 08:39:34,020 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:34,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash 601087770, now seen corresponding path program 1 times [2023-08-26 08:39:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:34,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394389878] [2023-08-26 08:39:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:34,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:34,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:34,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394389878] [2023-08-26 08:39:34,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394389878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:34,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:34,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:39:34,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965960116] [2023-08-26 08:39:34,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:34,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:39:34,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:39:34,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:39:34,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 638 [2023-08-26 08:39:34,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 68 transitions, 399 flow. Second operand has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 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) [2023-08-26 08:39:34,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:34,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 638 [2023-08-26 08:39:34,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:34,506 INFO L124 PetriNetUnfolderBase]: 337/894 cut-off events. [2023-08-26 08:39:34,506 INFO L125 PetriNetUnfolderBase]: For 2071/2109 co-relation queries the response was YES. [2023-08-26 08:39:34,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 894 events. 337/894 cut-off events. For 2071/2109 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5392 event pairs, 97 based on Foata normal form. 9/877 useless extension candidates. Maximal degree in co-relation 2846. Up to 335 conditions per place. [2023-08-26 08:39:34,512 INFO L140 encePairwiseOnDemand]: 628/638 looper letters, 49 selfloop transitions, 10 changer transitions 9/93 dead transitions. [2023-08-26 08:39:34,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 93 transitions, 608 flow [2023-08-26 08:39:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1463 transitions. [2023-08-26 08:39:34,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4586206896551724 [2023-08-26 08:39:34,514 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1463 transitions. [2023-08-26 08:39:34,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1463 transitions. [2023-08-26 08:39:34,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:34,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1463 transitions. [2023-08-26 08:39:34,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 292.6) internal successors, (1463), 5 states have internal predecessors, (1463), 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) [2023-08-26 08:39:34,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:34,518 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:34,518 INFO L175 Difference]: Start difference. First operand has 109 places, 68 transitions, 399 flow. Second operand 5 states and 1463 transitions. [2023-08-26 08:39:34,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 93 transitions, 608 flow [2023-08-26 08:39:34,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 93 transitions, 600 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 08:39:34,524 INFO L231 Difference]: Finished difference. Result has 109 places, 67 transitions, 408 flow [2023-08-26 08:39:34,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=109, PETRI_TRANSITIONS=67} [2023-08-26 08:39:34,525 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-26 08:39:34,525 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 67 transitions, 408 flow [2023-08-26 08:39:34,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 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) [2023-08-26 08:39:34,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:34,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:34,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-26 08:39:34,526 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-26 08:39:34,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:34,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1087778904, now seen corresponding path program 2 times [2023-08-26 08:39:34,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:34,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140908103] [2023-08-26 08:39:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:39:34,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:34,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140908103] [2023-08-26 08:39:34,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140908103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:34,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:34,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:39:34,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454491196] [2023-08-26 08:39:34,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:34,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:39:34,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:39:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:39:34,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 638 [2023-08-26 08:39:34,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 67 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 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) [2023-08-26 08:39:34,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:34,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 638 [2023-08-26 08:39:34,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:34,870 INFO L124 PetriNetUnfolderBase]: 325/867 cut-off events. [2023-08-26 08:39:34,870 INFO L125 PetriNetUnfolderBase]: For 2143/2181 co-relation queries the response was YES. [2023-08-26 08:39:34,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2885 conditions, 867 events. 325/867 cut-off events. For 2143/2181 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5279 event pairs, 97 based on Foata normal form. 8/849 useless extension candidates. Maximal degree in co-relation 2859. Up to 331 conditions per place. [2023-08-26 08:39:34,874 INFO L140 encePairwiseOnDemand]: 628/638 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-26 08:39:34,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 85 transitions, 587 flow [2023-08-26 08:39:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1455 transitions. [2023-08-26 08:39:34,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4561128526645768 [2023-08-26 08:39:34,876 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1455 transitions. [2023-08-26 08:39:34,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1455 transitions. [2023-08-26 08:39:34,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:34,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1455 transitions. [2023-08-26 08:39:34,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 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) [2023-08-26 08:39:34,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:34,880 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 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) [2023-08-26 08:39:34,880 INFO L175 Difference]: Start difference. First operand has 109 places, 67 transitions, 408 flow. Second operand 5 states and 1455 transitions. [2023-08-26 08:39:34,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 85 transitions, 587 flow [2023-08-26 08:39:34,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 85 transitions, 566 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 08:39:34,887 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2023-08-26 08:39:34,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2023-08-26 08:39:34,887 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-26 08:39:34,888 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2023-08-26 08:39:34,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 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) [2023-08-26 08:39:34,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2023-08-26 08:39:34,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-08-26 08:39:34,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-08-26 08:39:34,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-08-26 08:39:34,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-08-26 08:39:34,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-08-26 08:39:34,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-08-26 08:39:34,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-08-26 08:39:34,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-08-26 08:39:34,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-08-26 08:39:34,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-08-26 08:39:34,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-08-26 08:39:34,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-08-26 08:39:34,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-08-26 08:39:34,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-08-26 08:39:34,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONASSERT (20 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2023-08-26 08:39:34,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-08-26 08:39:34,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-08-26 08:39:34,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-08-26 08:39:34,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-08-26 08:39:34,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-08-26 08:39:34,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-08-26 08:39:34,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-08-26 08:39:34,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-08-26 08:39:34,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-26 08:39:34,896 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:34,901 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 08:39:34,901 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 08:39:34,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:39:34 BasicIcfg [2023-08-26 08:39:34,904 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 08:39:34,904 INFO L158 Benchmark]: Toolchain (without parser) took 19728.14ms. Allocated memory was 360.7MB in the beginning and 780.1MB in the end (delta: 419.4MB). Free memory was 337.0MB in the beginning and 478.3MB in the end (delta: -141.3MB). Peak memory consumption was 279.8MB. Max. memory is 16.0GB. [2023-08-26 08:39:34,904 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 360.7MB. Free memory is still 337.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 08:39:34,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.25ms. Allocated memory is still 360.7MB. Free memory was 336.5MB in the beginning and 324.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 08:39:34,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.22ms. Allocated memory is still 360.7MB. Free memory was 324.9MB in the beginning and 322.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:39:34,905 INFO L158 Benchmark]: Boogie Preprocessor took 45.77ms. Allocated memory is still 360.7MB. Free memory was 322.9MB in the beginning and 320.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:39:34,905 INFO L158 Benchmark]: RCFGBuilder took 635.04ms. Allocated memory is still 360.7MB. Free memory was 320.8MB in the beginning and 297.5MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-26 08:39:34,905 INFO L158 Benchmark]: TraceAbstraction took 18732.72ms. Allocated memory was 360.7MB in the beginning and 780.1MB in the end (delta: 419.4MB). Free memory was 297.0MB in the beginning and 478.3MB in the end (delta: -181.2MB). Peak memory consumption was 239.9MB. Max. memory is 16.0GB. [2023-08-26 08:39:34,909 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 360.7MB. Free memory is still 337.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 252.25ms. Allocated memory is still 360.7MB. Free memory was 336.5MB in the beginning and 324.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.22ms. Allocated memory is still 360.7MB. Free memory was 324.9MB in the beginning and 322.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.77ms. Allocated memory is still 360.7MB. Free memory was 322.9MB in the beginning and 320.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 635.04ms. Allocated memory is still 360.7MB. Free memory was 320.8MB in the beginning and 297.5MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 18732.72ms. Allocated memory was 360.7MB in the beginning and 780.1MB in the end (delta: 419.4MB). Free memory was 297.0MB in the beginning and 478.3MB in the end (delta: -181.2MB). Peak memory consumption was 239.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 287 PlacesBefore, 81 PlacesAfterwards, 298 TransitionsBefore, 84 TransitionsAfterwards, 15476 CoEnabledTransitionPairs, 8 FixpointIterations, 152 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 40 ConcurrentYvCompositions, 8 ChoiceCompositions, 329 TotalNumberOfCompositions, 56101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30418, independent: 29481, independent conditional: 0, independent unconditional: 29481, dependent: 937, dependent conditional: 0, dependent unconditional: 937, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9409, independent: 9317, independent conditional: 0, independent unconditional: 9317, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30418, independent: 20164, independent conditional: 0, independent unconditional: 20164, dependent: 845, dependent conditional: 0, dependent unconditional: 845, unknown: 9409, unknown conditional: 0, unknown unconditional: 9409] , Statistics on independence cache: Total cache size (in pairs): 986, Positive cache size: 933, Positive conditional cache size: 0, Positive unconditional cache size: 933, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 430 locations, 53 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.5s, OverallIterations: 29, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1074 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1074 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4251 IncrementalHoareTripleChecker+Invalid, 4349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 24 mSDtfsCounter, 4251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=654occurred in iteration=14, InterpolantAutomatonStates: 151, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 2824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 08:39:34,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...