/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:30:26,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:30:26,155 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 05:30:26,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:30:26,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:30:26,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:30:26,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:30:26,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:30:26,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:30:26,203 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:30:26,203 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:30:26,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:30:26,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:30:26,204 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:30:26,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:30:26,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:30:26,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:30:26,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:30:26,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:30:26,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:30:26,210 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:30:26,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:30:26,210 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:30:26,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:30:26,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:30:26,211 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:30:26,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:30:26,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:30:26,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:30:26,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:30:26,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:30:26,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:30:26,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:30:26,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:30:26,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:30:26,213 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:30:26,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:30:26,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:30:26,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:30:26,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:30:26,605 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:30:26,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-08-25 05:30:27,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:30:28,125 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:30:28,126 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-08-25 05:30:28,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a253e7d2/09e1947990e941f0a8361a5f65926e3e/FLAGa05d45d72 [2023-08-25 05:30:28,143 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a253e7d2/09e1947990e941f0a8361a5f65926e3e [2023-08-25 05:30:28,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:30:28,146 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:30:28,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:30:28,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:30:28,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:30:28,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5cfd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28, skipping insertion in model container [2023-08-25 05:30:28,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,169 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:30:28,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:30:28,382 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:30:28,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:30:28,462 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:30:28,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28 WrapperNode [2023-08-25 05:30:28,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:30:28,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:30:28,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:30:28,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:30:28,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,545 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 18, calls inlined = 32, statements flattened = 529 [2023-08-25 05:30:28,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:30:28,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:30:28,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:30:28,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:30:28,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:30:28,601 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:30:28,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:30:28,601 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:30:28,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (1/1) ... [2023-08-25 05:30:28,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:30:28,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:30:28,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 05:30:28,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 05:30:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:30:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:30:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:30:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:30:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:30:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:30:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:30:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:30:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 05:30:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:30:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:30:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:30:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:30:28,668 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 05:30:28,805 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:30:28,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:30:29,470 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:30:29,481 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:30:29,482 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 05:30:29,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:30:29 BoogieIcfgContainer [2023-08-25 05:30:29,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:30:29,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:30:29,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:30:29,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:30:29,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:30:28" (1/3) ... [2023-08-25 05:30:29,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d258f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:30:29, skipping insertion in model container [2023-08-25 05:30:29,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:28" (2/3) ... [2023-08-25 05:30:29,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d258f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:30:29, skipping insertion in model container [2023-08-25 05:30:29,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:30:29" (3/3) ... [2023-08-25 05:30:29,498 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2023-08-25 05:30:29,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:30:29,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2023-08-25 05:30:29,512 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:30:29,655 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 05:30:29,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 641 places, 667 transitions, 1350 flow [2023-08-25 05:30:29,968 INFO L124 PetriNetUnfolderBase]: 33/665 cut-off events. [2023-08-25 05:30:29,969 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:30:29,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 665 events. 33/665 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1742 event pairs, 0 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2023-08-25 05:30:29,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 641 places, 667 transitions, 1350 flow [2023-08-25 05:30:30,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 630 places, 656 transitions, 1324 flow [2023-08-25 05:30:30,013 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:30:30,027 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 630 places, 656 transitions, 1324 flow [2023-08-25 05:30:30,029 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 630 places, 656 transitions, 1324 flow [2023-08-25 05:30:30,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 630 places, 656 transitions, 1324 flow [2023-08-25 05:30:30,209 INFO L124 PetriNetUnfolderBase]: 33/656 cut-off events. [2023-08-25 05:30:30,209 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:30:30,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 656 events. 33/656 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1738 event pairs, 0 based on Foata normal form. 0/548 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2023-08-25 05:30:30,248 INFO L119 LiptonReduction]: Number of co-enabled transitions 90620 [2023-08-25 05:30:45,182 INFO L134 LiptonReduction]: Checked pairs total: 219930 [2023-08-25 05:30:45,183 INFO L136 LiptonReduction]: Total number of compositions: 782 [2023-08-25 05:30:45,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:30:45,199 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;@52dd09e7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:30:45,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 126 error locations. [2023-08-25 05:30:45,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:30:45,201 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:30:45,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:30:45,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:45,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:30:45,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:45,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2620, now seen corresponding path program 1 times [2023-08-25 05:30:45,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:45,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908368076] [2023-08-25 05:30:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:45,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:45,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:45,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:45,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908368076] [2023-08-25 05:30:45,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908368076] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:45,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:45,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:30:45,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076828801] [2023-08-25 05:30:45,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:45,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:30:45,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:45,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:30:45,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:30:45,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 639 out of 1449 [2023-08-25 05:30:45,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 154 transitions, 320 flow. Second operand has 2 states, 2 states have (on average 639.5) internal successors, (1279), 2 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:45,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:45,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 639 of 1449 [2023-08-25 05:30:45,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:45,670 INFO L124 PetriNetUnfolderBase]: 844/2294 cut-off events. [2023-08-25 05:30:45,670 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-08-25 05:30:45,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3732 conditions, 2294 events. 844/2294 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 16786 event pairs, 711 based on Foata normal form. 161/2259 useless extension candidates. Maximal degree in co-relation 3476. Up to 1387 conditions per place. [2023-08-25 05:30:45,688 INFO L140 encePairwiseOnDemand]: 1391/1449 looper letters, 44 selfloop transitions, 0 changer transitions 0/96 dead transitions. [2023-08-25 05:30:45,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 96 transitions, 292 flow [2023-08-25 05:30:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:30:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:30:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1380 transitions. [2023-08-25 05:30:45,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-25 05:30:45,706 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1380 transitions. [2023-08-25 05:30:45,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1380 transitions. [2023-08-25 05:30:45,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:45,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1380 transitions. [2023-08-25 05:30:45,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 690.0) internal successors, (1380), 2 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:45,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1449.0) internal successors, (4347), 3 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:45,727 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1449.0) internal successors, (4347), 3 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:45,729 INFO L175 Difference]: Start difference. First operand has 152 places, 154 transitions, 320 flow. Second operand 2 states and 1380 transitions. [2023-08-25 05:30:45,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 96 transitions, 292 flow [2023-08-25 05:30:45,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 96 transitions, 284 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:30:45,735 INFO L231 Difference]: Finished difference. Result has 95 places, 96 transitions, 196 flow [2023-08-25 05:30:45,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=196, PETRI_PLACES=95, PETRI_TRANSITIONS=96} [2023-08-25 05:30:45,740 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -57 predicate places. [2023-08-25 05:30:45,740 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 96 transitions, 196 flow [2023-08-25 05:30:45,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 639.5) internal successors, (1279), 2 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:45,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:45,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 05:30:45,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:30:45,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:45,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1733395699, now seen corresponding path program 1 times [2023-08-25 05:30:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:45,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969880006] [2023-08-25 05:30:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:45,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969880006] [2023-08-25 05:30:45,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969880006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:45,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:45,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:30:45,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585858674] [2023-08-25 05:30:45,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:45,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:30:45,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:30:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:30:45,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1449 [2023-08-25 05:30:45,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:45,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:45,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1449 [2023-08-25 05:30:45,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:46,110 INFO L124 PetriNetUnfolderBase]: 844/2280 cut-off events. [2023-08-25 05:30:46,111 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-25 05:30:46,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3684 conditions, 2280 events. 844/2280 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 16617 event pairs, 711 based on Foata normal form. 0/2084 useless extension candidates. Maximal degree in co-relation 3681. Up to 1386 conditions per place. [2023-08-25 05:30:46,124 INFO L140 encePairwiseOnDemand]: 1446/1449 looper letters, 43 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2023-08-25 05:30:46,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 280 flow [2023-08-25 05:30:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:30:46,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:30:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1927 transitions. [2023-08-25 05:30:46,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44329422590292156 [2023-08-25 05:30:46,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1927 transitions. [2023-08-25 05:30:46,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1927 transitions. [2023-08-25 05:30:46,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:46,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1927 transitions. [2023-08-25 05:30:46,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 642.3333333333334) internal successors, (1927), 3 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,149 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 196 flow. Second operand 3 states and 1927 transitions. [2023-08-25 05:30:46,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 280 flow [2023-08-25 05:30:46,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 94 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:46,152 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 194 flow [2023-08-25 05:30:46,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2023-08-25 05:30:46,154 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -57 predicate places. [2023-08-25 05:30:46,154 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 194 flow [2023-08-25 05:30:46,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:46,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 05:30:46,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:30:46,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:46,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2099331577, now seen corresponding path program 1 times [2023-08-25 05:30:46,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:46,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553381562] [2023-08-25 05:30:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:46,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:46,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553381562] [2023-08-25 05:30:46,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553381562] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:46,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:46,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:30:46,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040456182] [2023-08-25 05:30:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:46,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:30:46,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:46,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:30:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:30:46,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1449 [2023-08-25 05:30:46,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:46,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1449 [2023-08-25 05:30:46,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:46,628 INFO L124 PetriNetUnfolderBase]: 1466/3783 cut-off events. [2023-08-25 05:30:46,628 INFO L125 PetriNetUnfolderBase]: For 7/79 co-relation queries the response was YES. [2023-08-25 05:30:46,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6181 conditions, 3783 events. 1466/3783 cut-off events. For 7/79 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 27488 event pairs, 526 based on Foata normal form. 1/3482 useless extension candidates. Maximal degree in co-relation 6177. Up to 1329 conditions per place. [2023-08-25 05:30:46,651 INFO L140 encePairwiseOnDemand]: 1443/1449 looper letters, 72 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2023-08-25 05:30:46,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 126 transitions, 413 flow [2023-08-25 05:30:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:30:46,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:30:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1932 transitions. [2023-08-25 05:30:46,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-25 05:30:46,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1932 transitions. [2023-08-25 05:30:46,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1932 transitions. [2023-08-25 05:30:46,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:46,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1932 transitions. [2023-08-25 05:30:46,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 644.0) internal successors, (1932), 3 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,671 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 194 flow. Second operand 3 states and 1932 transitions. [2023-08-25 05:30:46,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 126 transitions, 413 flow [2023-08-25 05:30:46,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 126 transitions, 412 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:30:46,677 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 219 flow [2023-08-25 05:30:46,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=97, PETRI_TRANSITIONS=95} [2023-08-25 05:30:46,679 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -55 predicate places. [2023-08-25 05:30:46,679 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 219 flow [2023-08-25 05:30:46,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:46,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:46,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:30:46,684 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:46,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:46,685 INFO L85 PathProgramCache]: Analyzing trace with hash 654788087, now seen corresponding path program 1 times [2023-08-25 05:30:46,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:46,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005644493] [2023-08-25 05:30:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:46,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:46,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:46,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005644493] [2023-08-25 05:30:46,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005644493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:46,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:46,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:30:46,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901822172] [2023-08-25 05:30:46,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:46,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:30:46,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:46,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:30:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:30:46,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1449 [2023-08-25 05:30:46,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:46,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:46,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1449 [2023-08-25 05:30:46,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:47,178 INFO L124 PetriNetUnfolderBase]: 1561/3764 cut-off events. [2023-08-25 05:30:47,179 INFO L125 PetriNetUnfolderBase]: For 323/323 co-relation queries the response was YES. [2023-08-25 05:30:47,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6665 conditions, 3764 events. 1561/3764 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26373 event pairs, 504 based on Foata normal form. 0/3591 useless extension candidates. Maximal degree in co-relation 6660. Up to 2388 conditions per place. [2023-08-25 05:30:47,208 INFO L140 encePairwiseOnDemand]: 1441/1449 looper letters, 61 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2023-08-25 05:30:47,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 106 transitions, 380 flow [2023-08-25 05:30:47,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:30:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:30:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1921 transitions. [2023-08-25 05:30:47,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4419139636530941 [2023-08-25 05:30:47,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1921 transitions. [2023-08-25 05:30:47,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1921 transitions. [2023-08-25 05:30:47,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:47,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1921 transitions. [2023-08-25 05:30:47,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 640.3333333333334) internal successors, (1921), 3 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,229 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 219 flow. Second operand 3 states and 1921 transitions. [2023-08-25 05:30:47,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 106 transitions, 380 flow [2023-08-25 05:30:47,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 106 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:30:47,234 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 211 flow [2023-08-25 05:30:47,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2023-08-25 05:30:47,236 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -60 predicate places. [2023-08-25 05:30:47,236 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 211 flow [2023-08-25 05:30:47,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:47,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:47,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:30:47,237 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:47,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:47,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1079369827, now seen corresponding path program 1 times [2023-08-25 05:30:47,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:47,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190291107] [2023-08-25 05:30:47,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:47,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:47,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:47,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190291107] [2023-08-25 05:30:47,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190291107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:47,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:47,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:30:47,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988479833] [2023-08-25 05:30:47,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:47,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:30:47,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:47,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:30:47,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:30:47,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1449 [2023-08-25 05:30:47,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 620.6666666666666) internal successors, (1862), 3 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:47,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1449 [2023-08-25 05:30:47,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:47,879 INFO L124 PetriNetUnfolderBase]: 2621/5746 cut-off events. [2023-08-25 05:30:47,879 INFO L125 PetriNetUnfolderBase]: For 422/422 co-relation queries the response was YES. [2023-08-25 05:30:47,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10572 conditions, 5746 events. 2621/5746 cut-off events. For 422/422 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 40125 event pairs, 940 based on Foata normal form. 0/5417 useless extension candidates. Maximal degree in co-relation 10567. Up to 2344 conditions per place. [2023-08-25 05:30:47,911 INFO L140 encePairwiseOnDemand]: 1443/1449 looper letters, 78 selfloop transitions, 5 changer transitions 0/124 dead transitions. [2023-08-25 05:30:47,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 124 transitions, 461 flow [2023-08-25 05:30:47,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:30:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:30:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1931 transitions. [2023-08-25 05:30:47,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4442144007361399 [2023-08-25 05:30:47,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1931 transitions. [2023-08-25 05:30:47,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1931 transitions. [2023-08-25 05:30:47,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:47,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1931 transitions. [2023-08-25 05:30:47,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 643.6666666666666) internal successors, (1931), 3 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,930 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 211 flow. Second operand 3 states and 1931 transitions. [2023-08-25 05:30:47,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 124 transitions, 461 flow [2023-08-25 05:30:47,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 124 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:47,935 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 237 flow [2023-08-25 05:30:47,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2023-08-25 05:30:47,938 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -57 predicate places. [2023-08-25 05:30:47,938 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 237 flow [2023-08-25 05:30:47,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.6666666666666) internal successors, (1862), 3 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:47,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:47,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:47,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:30:47,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:47,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:47,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2073497370, now seen corresponding path program 1 times [2023-08-25 05:30:47,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:47,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919803731] [2023-08-25 05:30:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:48,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:48,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:48,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919803731] [2023-08-25 05:30:48,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919803731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:48,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:48,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:30:48,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749750167] [2023-08-25 05:30:48,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:48,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:30:48,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:48,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:30:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:30:48,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1449 [2023-08-25 05:30:48,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 580.6666666666666) internal successors, (3484), 6 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:48,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:48,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1449 [2023-08-25 05:30:48,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:51,802 INFO L124 PetriNetUnfolderBase]: 28401/43331 cut-off events. [2023-08-25 05:30:51,802 INFO L125 PetriNetUnfolderBase]: For 5825/5825 co-relation queries the response was YES. [2023-08-25 05:30:51,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91904 conditions, 43331 events. 28401/43331 cut-off events. For 5825/5825 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 286515 event pairs, 2334 based on Foata normal form. 0/40319 useless extension candidates. Maximal degree in co-relation 91897. Up to 15611 conditions per place. [2023-08-25 05:30:52,076 INFO L140 encePairwiseOnDemand]: 1444/1449 looper letters, 346 selfloop transitions, 4 changer transitions 0/355 dead transitions. [2023-08-25 05:30:52,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 355 transitions, 1607 flow [2023-08-25 05:30:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:30:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:30:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3795 transitions. [2023-08-25 05:30:52,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2023-08-25 05:30:52,086 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3795 transitions. [2023-08-25 05:30:52,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3795 transitions. [2023-08-25 05:30:52,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:52,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3795 transitions. [2023-08-25 05:30:52,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 632.5) internal successors, (3795), 6 states have internal predecessors, (3795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:52,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:52,112 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:52,113 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 237 flow. Second operand 6 states and 3795 transitions. [2023-08-25 05:30:52,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 355 transitions, 1607 flow [2023-08-25 05:30:52,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 355 transitions, 1573 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:30:52,131 INFO L231 Difference]: Finished difference. Result has 97 places, 91 transitions, 233 flow [2023-08-25 05:30:52,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=97, PETRI_TRANSITIONS=91} [2023-08-25 05:30:52,134 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -55 predicate places. [2023-08-25 05:30:52,134 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 91 transitions, 233 flow [2023-08-25 05:30:52,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 580.6666666666666) internal successors, (3484), 6 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:52,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:52,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:52,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:30:52,136 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:52,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:52,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1929450043, now seen corresponding path program 1 times [2023-08-25 05:30:52,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:52,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018218597] [2023-08-25 05:30:52,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:52,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:52,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:52,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018218597] [2023-08-25 05:30:52,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018218597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:52,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:52,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:30:52,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396424997] [2023-08-25 05:30:52,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:52,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:30:52,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:52,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:30:52,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:30:52,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 1449 [2023-08-25 05:30:52,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 91 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 591.25) internal successors, (2365), 4 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:52,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:52,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 1449 [2023-08-25 05:30:52,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:53,003 INFO L124 PetriNetUnfolderBase]: 5332/10313 cut-off events. [2023-08-25 05:30:53,003 INFO L125 PetriNetUnfolderBase]: For 2438/2438 co-relation queries the response was YES. [2023-08-25 05:30:53,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21959 conditions, 10313 events. 5332/10313 cut-off events. For 2438/2438 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 69728 event pairs, 4529 based on Foata normal form. 68/10049 useless extension candidates. Maximal degree in co-relation 21952. Up to 7708 conditions per place. [2023-08-25 05:30:53,062 INFO L140 encePairwiseOnDemand]: 1444/1449 looper letters, 91 selfloop transitions, 5 changer transitions 0/120 dead transitions. [2023-08-25 05:30:53,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 120 transitions, 508 flow [2023-08-25 05:30:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:30:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:30:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2440 transitions. [2023-08-25 05:30:53,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4209799861973775 [2023-08-25 05:30:53,069 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2440 transitions. [2023-08-25 05:30:53,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2440 transitions. [2023-08-25 05:30:53,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:53,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2440 transitions. [2023-08-25 05:30:53,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 610.0) internal successors, (2440), 4 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:53,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1449.0) internal successors, (7245), 5 states have internal predecessors, (7245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:53,082 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1449.0) internal successors, (7245), 5 states have internal predecessors, (7245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:53,082 INFO L175 Difference]: Start difference. First operand has 97 places, 91 transitions, 233 flow. Second operand 4 states and 2440 transitions. [2023-08-25 05:30:53,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 120 transitions, 508 flow [2023-08-25 05:30:53,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 120 transitions, 499 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:30:53,090 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 266 flow [2023-08-25 05:30:53,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2023-08-25 05:30:53,092 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -53 predicate places. [2023-08-25 05:30:53,092 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 266 flow [2023-08-25 05:30:53,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 591.25) internal successors, (2365), 4 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:53,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:53,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:53,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:30:53,093 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:53,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash 977430780, now seen corresponding path program 1 times [2023-08-25 05:30:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:53,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973888676] [2023-08-25 05:30:53,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:53,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:53,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:53,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973888676] [2023-08-25 05:30:53,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973888676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:53,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:53,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:30:53,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365923816] [2023-08-25 05:30:53,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:53,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:30:53,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:53,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:30:53,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:30:53,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1449 [2023-08-25 05:30:53,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 572.3333333333334) internal successors, (3434), 6 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:53,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:53,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1449 [2023-08-25 05:30:53,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:56,508 INFO L124 PetriNetUnfolderBase]: 28157/43902 cut-off events. [2023-08-25 05:30:56,509 INFO L125 PetriNetUnfolderBase]: For 7054/7054 co-relation queries the response was YES. [2023-08-25 05:30:56,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95804 conditions, 43902 events. 28157/43902 cut-off events. For 7054/7054 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 281637 event pairs, 7166 based on Foata normal form. 0/42554 useless extension candidates. Maximal degree in co-relation 95795. Up to 24412 conditions per place. [2023-08-25 05:30:56,766 INFO L140 encePairwiseOnDemand]: 1441/1449 looper letters, 271 selfloop transitions, 5 changer transitions 0/279 dead transitions. [2023-08-25 05:30:56,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 279 transitions, 1300 flow [2023-08-25 05:30:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:30:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:30:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3678 transitions. [2023-08-25 05:30:56,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4230503795721187 [2023-08-25 05:30:56,775 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3678 transitions. [2023-08-25 05:30:56,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3678 transitions. [2023-08-25 05:30:56,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:56,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3678 transitions. [2023-08-25 05:30:56,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 613.0) internal successors, (3678), 6 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,793 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 266 flow. Second operand 6 states and 3678 transitions. [2023-08-25 05:30:56,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 279 transitions, 1300 flow [2023-08-25 05:30:56,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 279 transitions, 1298 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:56,801 INFO L231 Difference]: Finished difference. Result has 101 places, 91 transitions, 268 flow [2023-08-25 05:30:56,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=101, PETRI_TRANSITIONS=91} [2023-08-25 05:30:56,802 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -51 predicate places. [2023-08-25 05:30:56,802 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 91 transitions, 268 flow [2023-08-25 05:30:56,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 572.3333333333334) internal successors, (3434), 6 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:56,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:56,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:30:56,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:30:56,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:56,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1601373516, now seen corresponding path program 1 times [2023-08-25 05:30:56,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:56,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853296665] [2023-08-25 05:30:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:56,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:57,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:30:57,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:57,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853296665] [2023-08-25 05:30:57,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853296665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:57,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:57,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:30:57,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754746270] [2023-08-25 05:30:57,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:57,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:30:57,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:57,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:30:57,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:30:57,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1449 [2023-08-25 05:30:57,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 91 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 572.3333333333334) internal successors, (3434), 6 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:57,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:57,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1449 [2023-08-25 05:30:57,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:00,248 INFO L124 PetriNetUnfolderBase]: 25692/39819 cut-off events. [2023-08-25 05:31:00,248 INFO L125 PetriNetUnfolderBase]: For 9145/9145 co-relation queries the response was YES. [2023-08-25 05:31:00,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90536 conditions, 39819 events. 25692/39819 cut-off events. For 9145/9145 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 246307 event pairs, 7417 based on Foata normal form. 0/39771 useless extension candidates. Maximal degree in co-relation 90526. Up to 20851 conditions per place. [2023-08-25 05:31:00,452 INFO L140 encePairwiseOnDemand]: 1441/1449 looper letters, 224 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2023-08-25 05:31:00,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 232 transitions, 1104 flow [2023-08-25 05:31:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:31:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:31:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3635 transitions. [2023-08-25 05:31:00,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41810443984357026 [2023-08-25 05:31:00,463 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3635 transitions. [2023-08-25 05:31:00,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3635 transitions. [2023-08-25 05:31:00,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:00,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3635 transitions. [2023-08-25 05:31:00,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 605.8333333333334) internal successors, (3635), 6 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:00,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:00,488 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:00,489 INFO L175 Difference]: Start difference. First operand has 101 places, 91 transitions, 268 flow. Second operand 6 states and 3635 transitions. [2023-08-25 05:31:00,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 232 transitions, 1104 flow [2023-08-25 05:31:00,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 232 transitions, 1054 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 05:31:00,504 INFO L231 Difference]: Finished difference. Result has 98 places, 88 transitions, 262 flow [2023-08-25 05:31:00,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=98, PETRI_TRANSITIONS=88} [2023-08-25 05:31:00,505 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -54 predicate places. [2023-08-25 05:31:00,505 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 88 transitions, 262 flow [2023-08-25 05:31:00,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 572.3333333333334) internal successors, (3434), 6 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:00,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:00,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:00,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:31:00,506 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:00,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash 235613975, now seen corresponding path program 1 times [2023-08-25 05:31:00,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:00,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796181512] [2023-08-25 05:31:00,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:00,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:00,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:00,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796181512] [2023-08-25 05:31:00,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796181512] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:31:00,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:31:00,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:31:00,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626289370] [2023-08-25 05:31:00,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:00,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:31:00,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:00,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:31:00,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:31:00,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 616 out of 1449 [2023-08-25 05:31:00,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:00,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:00,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 616 of 1449 [2023-08-25 05:31:00,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:01,158 INFO L124 PetriNetUnfolderBase]: 2756/5939 cut-off events. [2023-08-25 05:31:01,158 INFO L125 PetriNetUnfolderBase]: For 1387/1387 co-relation queries the response was YES. [2023-08-25 05:31:01,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12226 conditions, 5939 events. 2756/5939 cut-off events. For 1387/1387 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 40643 event pairs, 2104 based on Foata normal form. 0/5849 useless extension candidates. Maximal degree in co-relation 12216. Up to 4225 conditions per place. [2023-08-25 05:31:01,195 INFO L140 encePairwiseOnDemand]: 1446/1449 looper letters, 71 selfloop transitions, 3 changer transitions 0/108 dead transitions. [2023-08-25 05:31:01,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 108 transitions, 479 flow [2023-08-25 05:31:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:31:01,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:31:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2023-08-25 05:31:01,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4396135265700483 [2023-08-25 05:31:01,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2023-08-25 05:31:01,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2023-08-25 05:31:01,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:01,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2023-08-25 05:31:01,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:01,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:01,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:01,213 INFO L175 Difference]: Start difference. First operand has 98 places, 88 transitions, 262 flow. Second operand 3 states and 1911 transitions. [2023-08-25 05:31:01,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 108 transitions, 479 flow [2023-08-25 05:31:01,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 467 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 05:31:01,218 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 256 flow [2023-08-25 05:31:01,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2023-08-25 05:31:01,218 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -58 predicate places. [2023-08-25 05:31:01,219 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 256 flow [2023-08-25 05:31:01,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:01,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:01,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:01,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:31:01,220 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:01,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:01,220 INFO L85 PathProgramCache]: Analyzing trace with hash -783165431, now seen corresponding path program 1 times [2023-08-25 05:31:01,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:01,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849486771] [2023-08-25 05:31:01,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:01,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849486771] [2023-08-25 05:31:01,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849486771] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:31:01,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:31:01,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:31:01,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481408547] [2023-08-25 05:31:01,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:01,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:31:01,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:01,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:31:01,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:31:01,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 1449 [2023-08-25 05:31:01,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 582.1666666666666) internal successors, (3493), 6 states have internal predecessors, (3493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:01,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:01,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 1449 [2023-08-25 05:31:01,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:04,283 INFO L124 PetriNetUnfolderBase]: 24162/37846 cut-off events. [2023-08-25 05:31:04,283 INFO L125 PetriNetUnfolderBase]: For 6926/6926 co-relation queries the response was YES. [2023-08-25 05:31:04,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83772 conditions, 37846 events. 24162/37846 cut-off events. For 6926/6926 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 239101 event pairs, 21205 based on Foata normal form. 0/37829 useless extension candidates. Maximal degree in co-relation 83762. Up to 36140 conditions per place. [2023-08-25 05:31:04,488 INFO L140 encePairwiseOnDemand]: 1444/1449 looper letters, 198 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2023-08-25 05:31:04,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 206 transitions, 982 flow [2023-08-25 05:31:04,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:31:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:31:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3656 transitions. [2023-08-25 05:31:04,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42051989878076834 [2023-08-25 05:31:04,502 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3656 transitions. [2023-08-25 05:31:04,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3656 transitions. [2023-08-25 05:31:04,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:04,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3656 transitions. [2023-08-25 05:31:04,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 609.3333333333334) internal successors, (3656), 6 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:04,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:04,522 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1449.0) internal successors, (10143), 7 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:04,522 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 256 flow. Second operand 6 states and 3656 transitions. [2023-08-25 05:31:04,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 206 transitions, 982 flow [2023-08-25 05:31:04,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 206 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:31:04,540 INFO L231 Difference]: Finished difference. Result has 96 places, 86 transitions, 256 flow [2023-08-25 05:31:04,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=96, PETRI_TRANSITIONS=86} [2023-08-25 05:31:04,541 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -56 predicate places. [2023-08-25 05:31:04,541 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 86 transitions, 256 flow [2023-08-25 05:31:04,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 582.1666666666666) internal successors, (3493), 6 states have internal predecessors, (3493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:04,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:04,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:04,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 05:31:04,542 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:04,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:04,542 INFO L85 PathProgramCache]: Analyzing trace with hash -916550175, now seen corresponding path program 1 times [2023-08-25 05:31:04,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:04,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725214848] [2023-08-25 05:31:04,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:04,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:04,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:04,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725214848] [2023-08-25 05:31:04,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725214848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:31:04,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:31:04,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:31:04,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672344102] [2023-08-25 05:31:04,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:04,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:31:04,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:04,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:31:04,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:31:04,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1449 [2023-08-25 05:31:04,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:04,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:04,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1449 [2023-08-25 05:31:04,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:05,258 INFO L124 PetriNetUnfolderBase]: 2836/6021 cut-off events. [2023-08-25 05:31:05,258 INFO L125 PetriNetUnfolderBase]: For 1393/1393 co-relation queries the response was YES. [2023-08-25 05:31:05,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12143 conditions, 6021 events. 2836/6021 cut-off events. For 1393/1393 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 40711 event pairs, 2095 based on Foata normal form. 0/5943 useless extension candidates. Maximal degree in co-relation 12133. Up to 4265 conditions per place. [2023-08-25 05:31:05,287 INFO L140 encePairwiseOnDemand]: 1445/1449 looper letters, 71 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2023-08-25 05:31:05,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 107 transitions, 477 flow [2023-08-25 05:31:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:31:05,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:31:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1909 transitions. [2023-08-25 05:31:05,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43915343915343913 [2023-08-25 05:31:05,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1909 transitions. [2023-08-25 05:31:05,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1909 transitions. [2023-08-25 05:31:05,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:05,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1909 transitions. [2023-08-25 05:31:05,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,303 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 256 flow. Second operand 3 states and 1909 transitions. [2023-08-25 05:31:05,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 107 transitions, 477 flow [2023-08-25 05:31:05,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 107 transitions, 468 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:31:05,307 INFO L231 Difference]: Finished difference. Result has 94 places, 86 transitions, 263 flow [2023-08-25 05:31:05,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=94, PETRI_TRANSITIONS=86} [2023-08-25 05:31:05,307 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -58 predicate places. [2023-08-25 05:31:05,308 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 86 transitions, 263 flow [2023-08-25 05:31:05,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:05,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:05,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 05:31:05,309 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:05,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:05,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2003317626, now seen corresponding path program 1 times [2023-08-25 05:31:05,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:05,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279987584] [2023-08-25 05:31:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:05,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:31:05,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:05,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279987584] [2023-08-25 05:31:05,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279987584] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:31:05,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:31:05,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:31:05,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777408732] [2023-08-25 05:31:05,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:05,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:31:05,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:05,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:31:05,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:31:05,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1449 [2023-08-25 05:31:05,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 86 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:05,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1449 [2023-08-25 05:31:05,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:05,895 INFO L124 PetriNetUnfolderBase]: 2926/6035 cut-off events. [2023-08-25 05:31:05,895 INFO L125 PetriNetUnfolderBase]: For 1727/1727 co-relation queries the response was YES. [2023-08-25 05:31:05,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12668 conditions, 6035 events. 2926/6035 cut-off events. For 1727/1727 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 40083 event pairs, 2153 based on Foata normal form. 0/5965 useless extension candidates. Maximal degree in co-relation 12658. Up to 4381 conditions per place. [2023-08-25 05:31:05,919 INFO L140 encePairwiseOnDemand]: 1445/1449 looper letters, 75 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2023-08-25 05:31:05,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 110 transitions, 490 flow [2023-08-25 05:31:05,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:31:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:31:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1912 transitions. [2023-08-25 05:31:05,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398435702783529 [2023-08-25 05:31:05,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1912 transitions. [2023-08-25 05:31:05,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1912 transitions. [2023-08-25 05:31:05,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:05,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1912 transitions. [2023-08-25 05:31:05,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1449.0) internal successors, (5796), 4 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,933 INFO L175 Difference]: Start difference. First operand has 94 places, 86 transitions, 263 flow. Second operand 3 states and 1912 transitions. [2023-08-25 05:31:05,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 110 transitions, 490 flow [2023-08-25 05:31:05,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 110 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:31:05,939 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 273 flow [2023-08-25 05:31:05,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2023-08-25 05:31:05,941 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -57 predicate places. [2023-08-25 05:31:05,941 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 273 flow [2023-08-25 05:31:05,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:05,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:05,941 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] [2023-08-25 05:31:05,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 05:31:05,942 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:05,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:05,942 INFO L85 PathProgramCache]: Analyzing trace with hash 90202892, now seen corresponding path program 1 times [2023-08-25 05:31:05,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:05,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594467491] [2023-08-25 05:31:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:05,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:06,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:06,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594467491] [2023-08-25 05:31:06,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594467491] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:31:06,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:31:06,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:31:06,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334905288] [2023-08-25 05:31:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:06,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:31:06,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:31:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:31:06,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 608 out of 1449 [2023-08-25 05:31:06,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 273 flow. Second operand has 5 states, 5 states have (on average 611.2) internal successors, (3056), 5 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:06,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:06,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 608 of 1449 [2023-08-25 05:31:06,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:07,490 INFO L124 PetriNetUnfolderBase]: 6561/13617 cut-off events. [2023-08-25 05:31:07,491 INFO L125 PetriNetUnfolderBase]: For 3722/3722 co-relation queries the response was YES. [2023-08-25 05:31:07,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28843 conditions, 13617 events. 6561/13617 cut-off events. For 3722/3722 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 105290 event pairs, 1166 based on Foata normal form. 1/13562 useless extension candidates. Maximal degree in co-relation 28832. Up to 3965 conditions per place. [2023-08-25 05:31:07,569 INFO L140 encePairwiseOnDemand]: 1439/1449 looper letters, 148 selfloop transitions, 17 changer transitions 1/197 dead transitions. [2023-08-25 05:31:07,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 197 transitions, 950 flow [2023-08-25 05:31:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:31:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:31:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3187 transitions. [2023-08-25 05:31:07,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398895790200138 [2023-08-25 05:31:07,575 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3187 transitions. [2023-08-25 05:31:07,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3187 transitions. [2023-08-25 05:31:07,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:07,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3187 transitions. [2023-08-25 05:31:07,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 637.4) internal successors, (3187), 5 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:07,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1449.0) internal successors, (8694), 6 states have internal predecessors, (8694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:07,587 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1449.0) internal successors, (8694), 6 states have internal predecessors, (8694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:07,587 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 273 flow. Second operand 5 states and 3187 transitions. [2023-08-25 05:31:07,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 197 transitions, 950 flow [2023-08-25 05:31:07,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 197 transitions, 942 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:31:07,623 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 402 flow [2023-08-25 05:31:07,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=402, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2023-08-25 05:31:07,623 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -51 predicate places. [2023-08-25 05:31:07,624 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 402 flow [2023-08-25 05:31:07,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 611.2) internal successors, (3056), 5 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:07,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:07,625 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 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, 1, 1, 1, 1] [2023-08-25 05:31:07,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 05:31:07,625 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:07,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:07,625 INFO L85 PathProgramCache]: Analyzing trace with hash 6243466, now seen corresponding path program 1 times [2023-08-25 05:31:07,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:07,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419086093] [2023-08-25 05:31:07,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:07,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:07,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:07,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419086093] [2023-08-25 05:31:07,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419086093] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:31:07,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:31:07,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:31:07,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756301289] [2023-08-25 05:31:07,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:07,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:31:07,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:07,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:31:07,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:31:07,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 1449 [2023-08-25 05:31:07,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 402 flow. Second operand has 4 states, 4 states have (on average 596.25) internal successors, (2385), 4 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:07,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:07,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 1449 [2023-08-25 05:31:07,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:09,313 INFO L124 PetriNetUnfolderBase]: 9280/17581 cut-off events. [2023-08-25 05:31:09,313 INFO L125 PetriNetUnfolderBase]: For 8145/8165 co-relation queries the response was YES. [2023-08-25 05:31:09,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41344 conditions, 17581 events. 9280/17581 cut-off events. For 8145/8165 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 133575 event pairs, 7209 based on Foata normal form. 10/17500 useless extension candidates. Maximal degree in co-relation 41329. Up to 13895 conditions per place. [2023-08-25 05:31:09,377 INFO L140 encePairwiseOnDemand]: 1444/1449 looper letters, 103 selfloop transitions, 4 changer transitions 7/136 dead transitions. [2023-08-25 05:31:09,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 790 flow [2023-08-25 05:31:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:31:09,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:31:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2431 transitions. [2023-08-25 05:31:09,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4194271911663216 [2023-08-25 05:31:09,381 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2431 transitions. [2023-08-25 05:31:09,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2431 transitions. [2023-08-25 05:31:09,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:09,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2431 transitions. [2023-08-25 05:31:09,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 607.75) internal successors, (2431), 4 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:09,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1449.0) internal successors, (7245), 5 states have internal predecessors, (7245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:09,389 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1449.0) internal successors, (7245), 5 states have internal predecessors, (7245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:09,389 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 402 flow. Second operand 4 states and 2431 transitions. [2023-08-25 05:31:09,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 790 flow [2023-08-25 05:31:09,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 136 transitions, 790 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:31:09,412 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 391 flow [2023-08-25 05:31:09,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=391, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2023-08-25 05:31:09,413 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -47 predicate places. [2023-08-25 05:31:09,413 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 391 flow [2023-08-25 05:31:09,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 596.25) internal successors, (2385), 4 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:09,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:09,414 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 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, 1, 1, 1, 1, 1] [2023-08-25 05:31:09,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 05:31:09,414 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:09,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:09,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1409553889, now seen corresponding path program 1 times [2023-08-25 05:31:09,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:09,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25965370] [2023-08-25 05:31:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:09,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:31:09,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:09,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25965370] [2023-08-25 05:31:09,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25965370] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:31:09,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220315] [2023-08-25 05:31:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:09,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:31:09,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:31:09,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:31:09,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 05:31:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:09,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-25 05:31:09,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:31:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:31:09,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:31:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:31:09,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220315] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 05:31:09,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 05:31:09,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2023-08-25 05:31:09,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651632166] [2023-08-25 05:31:09,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:09,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:31:09,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:09,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:31:09,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:31:09,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 1449 [2023-08-25 05:31:09,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 391 flow. Second operand has 5 states, 5 states have (on average 593.4) internal successors, (2967), 5 states have internal predecessors, (2967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:09,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:09,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 1449 [2023-08-25 05:31:09,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:11,875 INFO L124 PetriNetUnfolderBase]: 11345/20104 cut-off events. [2023-08-25 05:31:11,875 INFO L125 PetriNetUnfolderBase]: For 10113/10125 co-relation queries the response was YES. [2023-08-25 05:31:11,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48227 conditions, 20104 events. 11345/20104 cut-off events. For 10113/10125 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 141954 event pairs, 8369 based on Foata normal form. 114/20124 useless extension candidates. Maximal degree in co-relation 48210. Up to 16026 conditions per place. [2023-08-25 05:31:11,987 INFO L140 encePairwiseOnDemand]: 1443/1449 looper letters, 107 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2023-08-25 05:31:11,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 129 transitions, 739 flow [2023-08-25 05:31:11,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:31:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:31:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3023 transitions. [2023-08-25 05:31:11,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41725327812284335 [2023-08-25 05:31:11,992 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3023 transitions. [2023-08-25 05:31:11,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3023 transitions. [2023-08-25 05:31:11,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:11,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3023 transitions. [2023-08-25 05:31:11,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 604.6) internal successors, (3023), 5 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:12,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1449.0) internal successors, (8694), 6 states have internal predecessors, (8694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:12,002 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1449.0) internal successors, (8694), 6 states have internal predecessors, (8694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:12,002 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 391 flow. Second operand 5 states and 3023 transitions. [2023-08-25 05:31:12,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 129 transitions, 739 flow [2023-08-25 05:31:12,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 129 transitions, 707 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-25 05:31:12,101 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 390 flow [2023-08-25 05:31:12,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=390, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2023-08-25 05:31:12,102 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -47 predicate places. [2023-08-25 05:31:12,102 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 390 flow [2023-08-25 05:31:12,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 593.4) internal successors, (2967), 5 states have internal predecessors, (2967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:12,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:12,103 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:12,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 05:31:12,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-25 05:31:12,310 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:12,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:12,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1508817157, now seen corresponding path program 1 times [2023-08-25 05:31:12,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:12,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709116164] [2023-08-25 05:31:12,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:12,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:12,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:12,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709116164] [2023-08-25 05:31:12,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709116164] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:31:12,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354230671] [2023-08-25 05:31:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:12,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:31:12,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:31:12,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:31:12,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 05:31:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:12,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-25 05:31:12,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:31:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:12,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:31:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:12,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354230671] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 05:31:12,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 05:31:12,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2023-08-25 05:31:12,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119686253] [2023-08-25 05:31:12,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:12,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:31:12,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:31:12,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:31:12,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 1449 [2023-08-25 05:31:12,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 390 flow. Second operand has 5 states, 5 states have (on average 593.2) internal successors, (2966), 5 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:12,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:12,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 1449 [2023-08-25 05:31:12,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:14,179 INFO L124 PetriNetUnfolderBase]: 8937/16388 cut-off events. [2023-08-25 05:31:14,179 INFO L125 PetriNetUnfolderBase]: For 7892/7892 co-relation queries the response was YES. [2023-08-25 05:31:14,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39881 conditions, 16388 events. 8937/16388 cut-off events. For 7892/7892 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 119945 event pairs, 6347 based on Foata normal form. 94/16396 useless extension candidates. Maximal degree in co-relation 39865. Up to 12718 conditions per place. [2023-08-25 05:31:14,258 INFO L140 encePairwiseOnDemand]: 1443/1449 looper letters, 99 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2023-08-25 05:31:14,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 126 transitions, 712 flow [2023-08-25 05:31:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:31:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:31:14,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3015 transitions. [2023-08-25 05:31:14,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4161490683229814 [2023-08-25 05:31:14,263 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3015 transitions. [2023-08-25 05:31:14,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3015 transitions. [2023-08-25 05:31:14,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:14,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3015 transitions. [2023-08-25 05:31:14,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 603.0) internal successors, (3015), 5 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:14,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1449.0) internal successors, (8694), 6 states have internal predecessors, (8694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:14,273 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1449.0) internal successors, (8694), 6 states have internal predecessors, (8694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:14,273 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 390 flow. Second operand 5 states and 3015 transitions. [2023-08-25 05:31:14,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 126 transitions, 712 flow [2023-08-25 05:31:14,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 126 transitions, 704 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 05:31:14,317 INFO L231 Difference]: Finished difference. Result has 108 places, 101 transitions, 407 flow [2023-08-25 05:31:14,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=407, PETRI_PLACES=108, PETRI_TRANSITIONS=101} [2023-08-25 05:31:14,318 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -44 predicate places. [2023-08-25 05:31:14,318 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 101 transitions, 407 flow [2023-08-25 05:31:14,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 593.2) internal successors, (2966), 5 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:14,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:14,319 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:14,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 05:31:14,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-25 05:31:14,528 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:14,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1122421217, now seen corresponding path program 1 times [2023-08-25 05:31:14,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:14,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020391191] [2023-08-25 05:31:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:14,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:15,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:15,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020391191] [2023-08-25 05:31:15,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020391191] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:31:15,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052716005] [2023-08-25 05:31:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:15,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:31:15,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:31:15,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:31:15,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 05:31:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:16,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 92 conjunts are in the unsatisfiable core [2023-08-25 05:31:16,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:31:16,082 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 05:31:16,122 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:31:16,204 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:31:16,623 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:31:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:16,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:31:17,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:31:17,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052716005] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:31:17,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:31:17,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 11] total 29 [2023-08-25 05:31:17,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711048696] [2023-08-25 05:31:17,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:31:17,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-08-25 05:31:17,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:17,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-08-25 05:31:17,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=748, Unknown=3, NotChecked=0, Total=870 [2023-08-25 05:31:17,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 1449 [2023-08-25 05:31:17,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 101 transitions, 407 flow. Second operand has 30 states, 30 states have (on average 502.76666666666665) internal successors, (15083), 30 states have internal predecessors, (15083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:17,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:17,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 1449 [2023-08-25 05:31:17,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:32,300 INFO L124 PetriNetUnfolderBase]: 99835/151021 cut-off events. [2023-08-25 05:31:32,300 INFO L125 PetriNetUnfolderBase]: For 49945/49945 co-relation queries the response was YES. [2023-08-25 05:31:32,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377045 conditions, 151021 events. 99835/151021 cut-off events. For 49945/49945 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 1043367 event pairs, 8410 based on Foata normal form. 1/151022 useless extension candidates. Maximal degree in co-relation 377027. Up to 37508 conditions per place. [2023-08-25 05:31:33,246 INFO L140 encePairwiseOnDemand]: 1428/1449 looper letters, 739 selfloop transitions, 104 changer transitions 1/844 dead transitions. [2023-08-25 05:31:33,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 844 transitions, 4241 flow [2023-08-25 05:31:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-25 05:31:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-25 05:31:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 15265 transitions. [2023-08-25 05:31:33,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36327074557959116 [2023-08-25 05:31:33,273 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 15265 transitions. [2023-08-25 05:31:33,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 15265 transitions. [2023-08-25 05:31:33,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:33,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 15265 transitions. [2023-08-25 05:31:33,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 526.3793103448276) internal successors, (15265), 29 states have internal predecessors, (15265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:33,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 1449.0) internal successors, (43470), 30 states have internal predecessors, (43470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:33,334 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 1449.0) internal successors, (43470), 30 states have internal predecessors, (43470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:33,334 INFO L175 Difference]: Start difference. First operand has 108 places, 101 transitions, 407 flow. Second operand 29 states and 15265 transitions. [2023-08-25 05:31:33,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 844 transitions, 4241 flow [2023-08-25 05:31:34,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 844 transitions, 4221 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 05:31:34,353 INFO L231 Difference]: Finished difference. Result has 154 places, 194 transitions, 1380 flow [2023-08-25 05:31:34,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=1380, PETRI_PLACES=154, PETRI_TRANSITIONS=194} [2023-08-25 05:31:34,354 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, 2 predicate places. [2023-08-25 05:31:34,354 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 194 transitions, 1380 flow [2023-08-25 05:31:34,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 502.76666666666665) internal successors, (15083), 30 states have internal predecessors, (15083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:34,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:34,356 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:34,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 05:31:34,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-25 05:31:34,557 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:34,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:34,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2090693497, now seen corresponding path program 2 times [2023-08-25 05:31:34,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:34,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351741944] [2023-08-25 05:31:34,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:34,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:35,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:35,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351741944] [2023-08-25 05:31:35,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351741944] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:31:35,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839672550] [2023-08-25 05:31:35,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:31:35,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:31:35,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:31:35,889 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:31:35,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 05:31:36,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:31:36,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:31:36,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 81 conjunts are in the unsatisfiable core [2023-08-25 05:31:36,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:31:36,625 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:31:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:31:36,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:31:36,957 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:31:36,957 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 16 [2023-08-25 05:31:36,973 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-25 05:31:36,974 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 12 [2023-08-25 05:31:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:31:37,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839672550] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:31:37,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:31:37,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 25 [2023-08-25 05:31:37,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768852984] [2023-08-25 05:31:37,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:31:37,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-25 05:31:37,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:37,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-25 05:31:37,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2023-08-25 05:31:37,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 1449 [2023-08-25 05:31:37,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 194 transitions, 1380 flow. Second operand has 26 states, 26 states have (on average 521.8461538461538) internal successors, (13568), 26 states have internal predecessors, (13568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:37,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:37,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 1449 [2023-08-25 05:31:37,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:45,241 INFO L124 PetriNetUnfolderBase]: 33039/53714 cut-off events. [2023-08-25 05:31:45,241 INFO L125 PetriNetUnfolderBase]: For 84408/84408 co-relation queries the response was YES. [2023-08-25 05:31:45,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161894 conditions, 53714 events. 33039/53714 cut-off events. For 84408/84408 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 356336 event pairs, 6275 based on Foata normal form. 1/53715 useless extension candidates. Maximal degree in co-relation 161855. Up to 17869 conditions per place. [2023-08-25 05:31:45,715 INFO L140 encePairwiseOnDemand]: 1428/1449 looper letters, 593 selfloop transitions, 120 changer transitions 1/722 dead transitions. [2023-08-25 05:31:45,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 722 transitions, 4785 flow [2023-08-25 05:31:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-25 05:31:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-25 05:31:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 13042 transitions. [2023-08-25 05:31:45,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3750287554635381 [2023-08-25 05:31:45,732 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 13042 transitions. [2023-08-25 05:31:45,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 13042 transitions. [2023-08-25 05:31:45,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:45,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 13042 transitions. [2023-08-25 05:31:45,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 543.4166666666666) internal successors, (13042), 24 states have internal predecessors, (13042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:45,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1449.0) internal successors, (36225), 25 states have internal predecessors, (36225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:45,774 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1449.0) internal successors, (36225), 25 states have internal predecessors, (36225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:45,774 INFO L175 Difference]: Start difference. First operand has 154 places, 194 transitions, 1380 flow. Second operand 24 states and 13042 transitions. [2023-08-25 05:31:45,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 722 transitions, 4785 flow [2023-08-25 05:31:46,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 722 transitions, 4660 flow, removed 38 selfloop flow, removed 4 redundant places. [2023-08-25 05:31:46,820 INFO L231 Difference]: Finished difference. Result has 183 places, 237 transitions, 2027 flow [2023-08-25 05:31:46,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2027, PETRI_PLACES=183, PETRI_TRANSITIONS=237} [2023-08-25 05:31:46,820 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, 31 predicate places. [2023-08-25 05:31:46,820 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 237 transitions, 2027 flow [2023-08-25 05:31:46,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 521.8461538461538) internal successors, (13568), 26 states have internal predecessors, (13568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:46,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:46,822 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:31:46,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 05:31:47,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:31:47,025 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:31:47,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:47,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1895519647, now seen corresponding path program 3 times [2023-08-25 05:31:47,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:47,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053786416] [2023-08-25 05:31:47,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:47,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:48,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:48,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053786416] [2023-08-25 05:31:48,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053786416] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:31:48,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568777268] [2023-08-25 05:31:48,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:31:48,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:31:48,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:31:48,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:31:48,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 05:31:48,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 05:31:48,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:31:48,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 73 conjunts are in the unsatisfiable core [2023-08-25 05:31:48,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:31:48,804 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2023-08-25 05:31:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:31:49,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:31:49,186 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:31:49,187 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 16 [2023-08-25 05:31:49,196 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-25 05:31:49,197 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 12 [2023-08-25 05:31:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:31:49,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568777268] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:31:49,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:31:49,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2023-08-25 05:31:49,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656846283] [2023-08-25 05:31:49,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:31:49,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 05:31:49,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:49,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 05:31:49,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2023-08-25 05:31:49,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 519 out of 1449 [2023-08-25 05:31:49,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 237 transitions, 2027 flow. Second operand has 25 states, 25 states have (on average 523.92) internal successors, (13098), 25 states have internal predecessors, (13098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:49,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:49,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 519 of 1449 [2023-08-25 05:31:49,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:59,490 INFO L124 PetriNetUnfolderBase]: 38086/61979 cut-off events. [2023-08-25 05:31:59,491 INFO L125 PetriNetUnfolderBase]: For 121973/121973 co-relation queries the response was YES. [2023-08-25 05:32:00,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194513 conditions, 61979 events. 38086/61979 cut-off events. For 121973/121973 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 420436 event pairs, 8734 based on Foata normal form. 1/61980 useless extension candidates. Maximal degree in co-relation 194464. Up to 25069 conditions per place. [2023-08-25 05:32:00,231 INFO L140 encePairwiseOnDemand]: 1428/1449 looper letters, 611 selfloop transitions, 138 changer transitions 1/758 dead transitions. [2023-08-25 05:32:00,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 758 transitions, 5514 flow [2023-08-25 05:32:00,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-25 05:32:00,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-25 05:32:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 12579 transitions. [2023-08-25 05:32:00,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37744171392564585 [2023-08-25 05:32:00,241 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 12579 transitions. [2023-08-25 05:32:00,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 12579 transitions. [2023-08-25 05:32:00,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:32:00,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 12579 transitions. [2023-08-25 05:32:00,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 546.9130434782609) internal successors, (12579), 23 states have internal predecessors, (12579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:00,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 1449.0) internal successors, (34776), 24 states have internal predecessors, (34776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:00,278 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 1449.0) internal successors, (34776), 24 states have internal predecessors, (34776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:00,279 INFO L175 Difference]: Start difference. First operand has 183 places, 237 transitions, 2027 flow. Second operand 23 states and 12579 transitions. [2023-08-25 05:32:00,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 758 transitions, 5514 flow [2023-08-25 05:32:01,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 758 transitions, 5442 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-25 05:32:01,838 INFO L231 Difference]: Finished difference. Result has 207 places, 269 transitions, 2670 flow [2023-08-25 05:32:01,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=1958, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2670, PETRI_PLACES=207, PETRI_TRANSITIONS=269} [2023-08-25 05:32:01,839 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, 55 predicate places. [2023-08-25 05:32:01,839 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 269 transitions, 2670 flow [2023-08-25 05:32:01,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 523.92) internal successors, (13098), 25 states have internal predecessors, (13098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:01,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:32:01,841 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:32:01,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-25 05:32:02,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:32:02,043 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:32:02,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:32:02,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1804542643, now seen corresponding path program 1 times [2023-08-25 05:32:02,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:32:02,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725978885] [2023-08-25 05:32:02,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:32:02,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:32:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:32:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:32:03,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:32:03,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725978885] [2023-08-25 05:32:03,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725978885] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:32:03,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189653758] [2023-08-25 05:32:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:32:03,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:32:03,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:32:03,217 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:32:03,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 05:32:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:32:03,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 88 conjunts are in the unsatisfiable core [2023-08-25 05:32:03,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:32:03,475 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 05:32:03,518 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:32:03,576 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:32:03,913 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:32:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:32:04,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:32:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:32:04,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189653758] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:32:04,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:32:04,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 28 [2023-08-25 05:32:04,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855272916] [2023-08-25 05:32:04,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:32:04,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-08-25 05:32:04,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:32:04,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-08-25 05:32:04,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=686, Unknown=2, NotChecked=0, Total=812 [2023-08-25 05:32:04,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 1449 [2023-08-25 05:32:04,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 269 transitions, 2670 flow. Second operand has 29 states, 29 states have (on average 482.9655172413793) internal successors, (14006), 29 states have internal predecessors, (14006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:04,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:32:04,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 1449 [2023-08-25 05:32:04,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:32:40,157 INFO L124 PetriNetUnfolderBase]: 153847/233379 cut-off events. [2023-08-25 05:32:40,157 INFO L125 PetriNetUnfolderBase]: For 499185/499185 co-relation queries the response was YES. [2023-08-25 05:32:42,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734385 conditions, 233379 events. 153847/233379 cut-off events. For 499185/499185 co-relation queries the response was YES. Maximal size of possible extension queue 1534. Compared 1696291 event pairs, 32157 based on Foata normal form. 1/233380 useless extension candidates. Maximal degree in co-relation 734330. Up to 108111 conditions per place. [2023-08-25 05:32:43,476 INFO L140 encePairwiseOnDemand]: 1428/1449 looper letters, 753 selfloop transitions, 173 changer transitions 1/927 dead transitions. [2023-08-25 05:32:43,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 927 transitions, 7155 flow [2023-08-25 05:32:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-25 05:32:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-25 05:32:43,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 15104 transitions. [2023-08-25 05:32:43,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3474580170232344 [2023-08-25 05:32:43,488 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 15104 transitions. [2023-08-25 05:32:43,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 15104 transitions. [2023-08-25 05:32:43,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:32:43,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 15104 transitions. [2023-08-25 05:32:43,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 503.46666666666664) internal successors, (15104), 30 states have internal predecessors, (15104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:43,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 1449.0) internal successors, (44919), 31 states have internal predecessors, (44919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:43,739 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 1449.0) internal successors, (44919), 31 states have internal predecessors, (44919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:43,739 INFO L175 Difference]: Start difference. First operand has 207 places, 269 transitions, 2670 flow. Second operand 30 states and 15104 transitions. [2023-08-25 05:32:43,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 927 transitions, 7155 flow [2023-08-25 05:32:59,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 927 transitions, 7000 flow, removed 32 selfloop flow, removed 7 redundant places. [2023-08-25 05:32:59,622 INFO L231 Difference]: Finished difference. Result has 241 places, 328 transitions, 3730 flow [2023-08-25 05:32:59,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=2536, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=3730, PETRI_PLACES=241, PETRI_TRANSITIONS=328} [2023-08-25 05:32:59,623 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, 89 predicate places. [2023-08-25 05:32:59,623 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 328 transitions, 3730 flow [2023-08-25 05:32:59,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 482.9655172413793) internal successors, (14006), 29 states have internal predecessors, (14006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:32:59,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:32:59,625 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:32:59,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 05:32:59,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:32:59,829 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:32:59,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:32:59,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1732471109, now seen corresponding path program 1 times [2023-08-25 05:32:59,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:32:59,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448905734] [2023-08-25 05:32:59,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:32:59,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:32:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:33:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:33:00,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:33:00,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448905734] [2023-08-25 05:33:00,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448905734] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:33:00,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389963240] [2023-08-25 05:33:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:33:00,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:33:00,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:33:00,897 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:33:00,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 05:33:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:33:01,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 88 conjunts are in the unsatisfiable core [2023-08-25 05:33:01,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:33:01,159 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 05:33:01,208 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:33:01,273 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:33:01,743 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:33:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:33:01,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:33:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:33:02,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389963240] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:33:02,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:33:02,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 9] total 26 [2023-08-25 05:33:02,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544092801] [2023-08-25 05:33:02,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:33:02,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 05:33:02,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:33:02,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 05:33:02,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=584, Unknown=1, NotChecked=0, Total=702 [2023-08-25 05:33:02,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 1449 [2023-08-25 05:33:02,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 328 transitions, 3730 flow. Second operand has 27 states, 27 states have (on average 483.6296296296296) internal successors, (13058), 27 states have internal predecessors, (13058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:33:02,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:33:02,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 1449 [2023-08-25 05:33:02,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:33:52,579 INFO L124 PetriNetUnfolderBase]: 194835/295140 cut-off events. [2023-08-25 05:33:52,580 INFO L125 PetriNetUnfolderBase]: For 795834/795834 co-relation queries the response was YES. [2023-08-25 05:33:56,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984789 conditions, 295140 events. 194835/295140 cut-off events. For 795834/795834 co-relation queries the response was YES. Maximal size of possible extension queue 2090. Compared 2227371 event pairs, 42112 based on Foata normal form. 1/295141 useless extension candidates. Maximal degree in co-relation 984721. Up to 153809 conditions per place. [2023-08-25 05:33:57,707 INFO L140 encePairwiseOnDemand]: 1429/1449 looper letters, 758 selfloop transitions, 182 changer transitions 1/941 dead transitions. [2023-08-25 05:33:57,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 941 transitions, 9006 flow [2023-08-25 05:33:57,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-25 05:33:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-25 05:33:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 11183 transitions. [2023-08-25 05:33:57,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35080619863228557 [2023-08-25 05:33:57,719 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 11183 transitions. [2023-08-25 05:33:57,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 11183 transitions. [2023-08-25 05:33:57,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:33:57,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 11183 transitions. [2023-08-25 05:33:57,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 508.3181818181818) internal successors, (11183), 22 states have internal predecessors, (11183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:33:57,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 1449.0) internal successors, (33327), 23 states have internal predecessors, (33327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:33:57,750 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 1449.0) internal successors, (33327), 23 states have internal predecessors, (33327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:33:57,750 INFO L175 Difference]: Start difference. First operand has 241 places, 328 transitions, 3730 flow. Second operand 22 states and 11183 transitions. [2023-08-25 05:33:57,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 941 transitions, 9006 flow [2023-08-25 05:34:31,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 941 transitions, 8865 flow, removed 37 selfloop flow, removed 6 redundant places. [2023-08-25 05:34:31,303 INFO L231 Difference]: Finished difference. Result has 266 places, 410 transitions, 5454 flow [2023-08-25 05:34:31,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=3600, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5454, PETRI_PLACES=266, PETRI_TRANSITIONS=410} [2023-08-25 05:34:31,304 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, 114 predicate places. [2023-08-25 05:34:31,304 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 410 transitions, 5454 flow [2023-08-25 05:34:31,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 483.6296296296296) internal successors, (13058), 27 states have internal predecessors, (13058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:31,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:34:31,306 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:34:31,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 05:34:31,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:34:31,512 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:34:31,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:34:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash 609073361, now seen corresponding path program 4 times [2023-08-25 05:34:31,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:34:31,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038162113] [2023-08-25 05:34:31,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:34:31,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:34:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:34:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:34:32,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:34:32,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038162113] [2023-08-25 05:34:32,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038162113] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:34:32,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664416197] [2023-08-25 05:34:32,447 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 05:34:32,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:34:32,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:34:32,448 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:34:32,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 05:34:32,836 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 05:34:32,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:34:32,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 83 conjunts are in the unsatisfiable core [2023-08-25 05:34:32,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:34:33,291 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:34:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:34:33,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:34:33,535 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:34:33,535 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 16 [2023-08-25 05:34:33,543 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-25 05:34:33,543 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 12 [2023-08-25 05:34:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:34:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664416197] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:34:33,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:34:33,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 25 [2023-08-25 05:34:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937774982] [2023-08-25 05:34:33,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:34:33,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-25 05:34:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:34:33,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-25 05:34:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2023-08-25 05:34:33,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 1449 [2023-08-25 05:34:33,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 410 transitions, 5454 flow. Second operand has 26 states, 26 states have (on average 521.8846153846154) internal successors, (13569), 26 states have internal predecessors, (13569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:33,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:34:33,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 1449 [2023-08-25 05:34:33,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:34:52,718 INFO L124 PetriNetUnfolderBase]: 59743/97277 cut-off events. [2023-08-25 05:34:52,718 INFO L125 PetriNetUnfolderBase]: For 374542/374543 co-relation queries the response was YES. [2023-08-25 05:34:54,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348072 conditions, 97277 events. 59743/97277 cut-off events. For 374542/374543 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 713136 event pairs, 14677 based on Foata normal form. 2/97279 useless extension candidates. Maximal degree in co-relation 347994. Up to 48415 conditions per place. [2023-08-25 05:34:54,545 INFO L140 encePairwiseOnDemand]: 1428/1449 looper letters, 695 selfloop transitions, 239 changer transitions 1/943 dead transitions. [2023-08-25 05:34:54,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 943 transitions, 9769 flow [2023-08-25 05:34:54,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-25 05:34:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-25 05:34:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 13594 transitions. [2023-08-25 05:34:54,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37526570048309177 [2023-08-25 05:34:54,558 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 13594 transitions. [2023-08-25 05:34:54,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 13594 transitions. [2023-08-25 05:34:54,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:34:54,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 13594 transitions. [2023-08-25 05:34:54,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 543.76) internal successors, (13594), 25 states have internal predecessors, (13594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:54,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 1449.0) internal successors, (37674), 26 states have internal predecessors, (37674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:54,596 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 1449.0) internal successors, (37674), 26 states have internal predecessors, (37674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:54,596 INFO L175 Difference]: Start difference. First operand has 266 places, 410 transitions, 5454 flow. Second operand 25 states and 13594 transitions. [2023-08-25 05:34:54,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 943 transitions, 9769 flow [2023-08-25 05:35:01,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 943 transitions, 9555 flow, removed 88 selfloop flow, removed 4 redundant places. [2023-08-25 05:35:01,220 INFO L231 Difference]: Finished difference. Result has 291 places, 440 transitions, 6372 flow [2023-08-25 05:35:01,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1449, PETRI_DIFFERENCE_MINUEND_FLOW=5252, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=6372, PETRI_PLACES=291, PETRI_TRANSITIONS=440} [2023-08-25 05:35:01,221 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, 139 predicate places. [2023-08-25 05:35:01,221 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 440 transitions, 6372 flow [2023-08-25 05:35:01,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 521.8846153846154) internal successors, (13569), 26 states have internal predecessors, (13569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:01,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:01,223 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:01,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 05:35:01,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-08-25 05:35:01,424 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 122 more)] === [2023-08-25 05:35:01,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:01,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1704531197, now seen corresponding path program 2 times [2023-08-25 05:35:01,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:01,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707713414] [2023-08-25 05:35:01,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:01,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:02,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:02,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707713414] [2023-08-25 05:35:02,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707713414] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:35:02,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712748584] [2023-08-25 05:35:02,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:35:02,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:02,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:02,359 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:35:02,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 05:35:02,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:35:02,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:35:02,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 75 conjunts are in the unsatisfiable core [2023-08-25 05:35:02,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:35:02,942 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:35:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:35:03,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:35:03,233 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:35:03,234 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 18 [2023-08-25 05:35:03,245 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-25 05:35:03,245 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 14 [2023-08-25 05:35:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:35:03,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712748584] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:35:03,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:35:03,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 22 [2023-08-25 05:35:03,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804978962] [2023-08-25 05:35:03,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:35:03,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-08-25 05:35:03,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-08-25 05:35:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2023-08-25 05:35:03,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 1449 [2023-08-25 05:35:03,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 440 transitions, 6372 flow. Second operand has 23 states, 23 states have (on average 502.4347826086956) internal successors, (11556), 23 states have internal predecessors, (11556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:03,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:03,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 1449 [2023-08-25 05:35:03,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:27,664 INFO L124 PetriNetUnfolderBase]: 65715/106966 cut-off events. [2023-08-25 05:35:27,664 INFO L125 PetriNetUnfolderBase]: For 503739/503741 co-relation queries the response was YES.