/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 09:32:16,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 09:32:16,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 09:32:16,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 09:32:16,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 09:32:16,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 09:32:16,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 09:32:16,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 09:32:16,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 09:32:16,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 09:32:16,472 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 09:32:16,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 09:32:16,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 09:32:16,474 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 09:32:16,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 09:32:16,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 09:32:16,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 09:32:16,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 09:32:16,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 09:32:16,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 09:32:16,475 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 09:32:16,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 09:32:16,476 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 09:32:16,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 09:32:16,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 09:32:16,477 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 09:32:16,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 09:32:16,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:32:16,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 09:32:16,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 09:32:16,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 09:32:16,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 09:32:16,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 09:32:16,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 09:32:16,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 09:32:16,480 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 09:32:16,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 09:32:16,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 09:32:16,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 09:32:16,796 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 09:32:16,797 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 09:32:16,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2023-08-26 09:32:17,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 09:32:18,161 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 09:32:18,162 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2023-08-26 09:32:18,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e952702d/6528fc659f5d4264875734c109dbd169/FLAGf3602cd75 [2023-08-26 09:32:18,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e952702d/6528fc659f5d4264875734c109dbd169 [2023-08-26 09:32:18,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 09:32:18,193 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 09:32:18,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 09:32:18,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 09:32:18,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 09:32:18,199 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5742a0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18, skipping insertion in model container [2023-08-26 09:32:18,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,224 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 09:32:18,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:32:18,449 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 09:32:18,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:32:18,509 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:32:18,509 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:32:18,515 INFO L206 MainTranslator]: Completed translation [2023-08-26 09:32:18,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18 WrapperNode [2023-08-26 09:32:18,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 09:32:18,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 09:32:18,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 09:32:18,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 09:32:18,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,592 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 17, calls inlined = 23, statements flattened = 452 [2023-08-26 09:32:18,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 09:32:18,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 09:32:18,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 09:32:18,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 09:32:18,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 09:32:18,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 09:32:18,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 09:32:18,681 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 09:32:18,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (1/1) ... [2023-08-26 09:32:18,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:32:18,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:32:18,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 09:32:18,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 09:32:18,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 09:32:18,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 09:32:18,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 09:32:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 09:32:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 09:32:18,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 09:32:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 09:32:18,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 09:32:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 09:32:18,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 09:32:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 09:32:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 09:32:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 09:32:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 09:32:18,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 09:32:18,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 09:32:18,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 09:32:18,764 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 09:32:18,895 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 09:32:18,898 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 09:32:19,499 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 09:32:19,717 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 09:32:19,717 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-26 09:32:19,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:32:19 BoogieIcfgContainer [2023-08-26 09:32:19,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 09:32:19,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 09:32:19,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 09:32:19,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 09:32:19,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:32:18" (1/3) ... [2023-08-26 09:32:19,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741d8e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:32:19, skipping insertion in model container [2023-08-26 09:32:19,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:32:18" (2/3) ... [2023-08-26 09:32:19,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741d8e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:32:19, skipping insertion in model container [2023-08-26 09:32:19,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:32:19" (3/3) ... [2023-08-26 09:32:19,728 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2023-08-26 09:32:19,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 09:32:19,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-08-26 09:32:19,742 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 09:32:19,863 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 09:32:19,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 420 transitions, 864 flow [2023-08-26 09:32:20,092 INFO L124 PetriNetUnfolderBase]: 26/417 cut-off events. [2023-08-26 09:32:20,092 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 09:32:20,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 417 events. 26/417 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 815 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 305. Up to 2 conditions per place. [2023-08-26 09:32:20,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 404 places, 420 transitions, 864 flow [2023-08-26 09:32:20,112 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 406 transitions, 830 flow [2023-08-26 09:32:20,115 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 09:32:20,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 406 transitions, 830 flow [2023-08-26 09:32:20,130 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 406 transitions, 830 flow [2023-08-26 09:32:20,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 390 places, 406 transitions, 830 flow [2023-08-26 09:32:20,202 INFO L124 PetriNetUnfolderBase]: 26/406 cut-off events. [2023-08-26 09:32:20,202 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 09:32:20,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 406 events. 26/406 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 811 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 305. Up to 2 conditions per place. [2023-08-26 09:32:20,222 INFO L119 LiptonReduction]: Number of co-enabled transitions 29394 [2023-08-26 09:32:30,051 INFO L134 LiptonReduction]: Checked pairs total: 202060 [2023-08-26 09:32:30,052 INFO L136 LiptonReduction]: Total number of compositions: 371 [2023-08-26 09:32:30,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 09:32:30,069 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;@4313dbcd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 09:32:30,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2023-08-26 09:32:30,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 09:32:30,071 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 09:32:30,071 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 09:32:30,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:30,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 09:32:30,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:30,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:30,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1787, now seen corresponding path program 1 times [2023-08-26 09:32:30,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:30,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249659045] [2023-08-26 09:32:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:30,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:30,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:30,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249659045] [2023-08-26 09:32:30,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249659045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:30,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:30,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 09:32:30,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29902027] [2023-08-26 09:32:30,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:30,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 09:32:30,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:30,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 09:32:30,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 09:32:30,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 791 [2023-08-26 09:32:30,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 156 transitions, 330 flow. Second operand has 2 states, 2 states have (on average 381.5) internal successors, (763), 2 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:30,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:30,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 791 [2023-08-26 09:32:30,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:31,053 INFO L124 PetriNetUnfolderBase]: 2339/5774 cut-off events. [2023-08-26 09:32:31,054 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2023-08-26 09:32:31,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9031 conditions, 5774 events. 2339/5774 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 51298 event pairs, 1473 based on Foata normal form. 1181/5677 useless extension candidates. Maximal degree in co-relation 7939. Up to 3110 conditions per place. [2023-08-26 09:32:31,112 INFO L140 encePairwiseOnDemand]: 757/791 looper letters, 38 selfloop transitions, 0 changer transitions 0/122 dead transitions. [2023-08-26 09:32:31,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 122 transitions, 338 flow [2023-08-26 09:32:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 09:32:31,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 09:32:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 834 transitions. [2023-08-26 09:32:31,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.527180783817952 [2023-08-26 09:32:31,130 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 834 transitions. [2023-08-26 09:32:31,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 834 transitions. [2023-08-26 09:32:31,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:31,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 834 transitions. [2023-08-26 09:32:31,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 417.0) internal successors, (834), 2 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:31,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 791.0) internal successors, (2373), 3 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:31,148 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 791.0) internal successors, (2373), 3 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:31,150 INFO L175 Difference]: Start difference. First operand has 150 places, 156 transitions, 330 flow. Second operand 2 states and 834 transitions. [2023-08-26 09:32:31,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 122 transitions, 338 flow [2023-08-26 09:32:31,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 122 transitions, 326 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 09:32:31,159 INFO L231 Difference]: Finished difference. Result has 119 places, 122 transitions, 250 flow [2023-08-26 09:32:31,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=250, PETRI_PLACES=119, PETRI_TRANSITIONS=122} [2023-08-26 09:32:31,164 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -31 predicate places. [2023-08-26 09:32:31,164 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 122 transitions, 250 flow [2023-08-26 09:32:31,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 381.5) internal successors, (763), 2 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:31,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:31,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:31,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 09:32:31,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:31,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:31,174 INFO L85 PathProgramCache]: Analyzing trace with hash 494994351, now seen corresponding path program 1 times [2023-08-26 09:32:31,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:31,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718904818] [2023-08-26 09:32:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:31,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:31,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:31,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:31,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718904818] [2023-08-26 09:32:31,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718904818] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:31,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:31,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:32:31,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687597039] [2023-08-26 09:32:31,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:31,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:32:31,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:31,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:32:31,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:32:31,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 791 [2023-08-26 09:32:31,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 122 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:31,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:31,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 791 [2023-08-26 09:32:31,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:32,133 INFO L124 PetriNetUnfolderBase]: 3499/7612 cut-off events. [2023-08-26 09:32:32,145 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-08-26 09:32:32,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12385 conditions, 7612 events. 3499/7612 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 65186 event pairs, 2423 based on Foata normal form. 0/6010 useless extension candidates. Maximal degree in co-relation 12382. Up to 4713 conditions per place. [2023-08-26 09:32:32,193 INFO L140 encePairwiseOnDemand]: 788/791 looper letters, 41 selfloop transitions, 1 changer transitions 0/120 dead transitions. [2023-08-26 09:32:32,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 120 transitions, 330 flow [2023-08-26 09:32:32,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:32:32,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:32:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1142 transitions. [2023-08-26 09:32:32,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4812473662031184 [2023-08-26 09:32:32,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1142 transitions. [2023-08-26 09:32:32,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1142 transitions. [2023-08-26 09:32:32,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:32,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1142 transitions. [2023-08-26 09:32:32,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:32,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:32,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:32,206 INFO L175 Difference]: Start difference. First operand has 119 places, 122 transitions, 250 flow. Second operand 3 states and 1142 transitions. [2023-08-26 09:32:32,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 120 transitions, 330 flow [2023-08-26 09:32:32,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 120 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:32:32,209 INFO L231 Difference]: Finished difference. Result has 119 places, 120 transitions, 248 flow [2023-08-26 09:32:32,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=119, PETRI_TRANSITIONS=120} [2023-08-26 09:32:32,210 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -31 predicate places. [2023-08-26 09:32:32,211 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 120 transitions, 248 flow [2023-08-26 09:32:32,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:32,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:32,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:32,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 09:32:32,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:32,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1051750883, now seen corresponding path program 1 times [2023-08-26 09:32:32,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:32,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311255036] [2023-08-26 09:32:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:32,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:32,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:32,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311255036] [2023-08-26 09:32:32,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311255036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:32,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:32,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:32:32,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619159831] [2023-08-26 09:32:32,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:32,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:32:32,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:32:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:32:32,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 791 [2023-08-26 09:32:32,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 120 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:32,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:32,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 791 [2023-08-26 09:32:32,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:33,514 INFO L124 PetriNetUnfolderBase]: 6401/12710 cut-off events. [2023-08-26 09:32:33,515 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2023-08-26 09:32:33,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21448 conditions, 12710 events. 6401/12710 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 106657 event pairs, 2329 based on Foata normal form. 0/11404 useless extension candidates. Maximal degree in co-relation 21444. Up to 8520 conditions per place. [2023-08-26 09:32:33,594 INFO L140 encePairwiseOnDemand]: 782/791 looper letters, 62 selfloop transitions, 3 changer transitions 0/132 dead transitions. [2023-08-26 09:32:33,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 132 transitions, 407 flow [2023-08-26 09:32:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:32:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:32:33,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1151 transitions. [2023-08-26 09:32:33,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48504003371260007 [2023-08-26 09:32:33,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1151 transitions. [2023-08-26 09:32:33,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1151 transitions. [2023-08-26 09:32:33,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:33,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1151 transitions. [2023-08-26 09:32:33,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:33,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:33,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:33,606 INFO L175 Difference]: Start difference. First operand has 119 places, 120 transitions, 248 flow. Second operand 3 states and 1151 transitions. [2023-08-26 09:32:33,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 132 transitions, 407 flow [2023-08-26 09:32:33,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 132 transitions, 406 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:32:33,611 INFO L231 Difference]: Finished difference. Result has 115 places, 117 transitions, 256 flow [2023-08-26 09:32:33,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=115, PETRI_TRANSITIONS=117} [2023-08-26 09:32:33,612 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -35 predicate places. [2023-08-26 09:32:33,612 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 117 transitions, 256 flow [2023-08-26 09:32:33,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:33,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:33,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 09:32:33,616 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:33,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:33,617 INFO L85 PathProgramCache]: Analyzing trace with hash -621523873, now seen corresponding path program 1 times [2023-08-26 09:32:33,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:33,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663496245] [2023-08-26 09:32:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:33,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:33,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:33,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:33,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663496245] [2023-08-26 09:32:33,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663496245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:33,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:33,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:32:33,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367842834] [2023-08-26 09:32:33,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:33,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:32:33,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:33,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:32:33,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:32:33,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 791 [2023-08-26 09:32:33,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 117 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:33,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:33,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 791 [2023-08-26 09:32:33,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:34,354 INFO L124 PetriNetUnfolderBase]: 3482/8363 cut-off events. [2023-08-26 09:32:34,354 INFO L125 PetriNetUnfolderBase]: For 647/675 co-relation queries the response was YES. [2023-08-26 09:32:34,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13924 conditions, 8363 events. 3482/8363 cut-off events. For 647/675 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 77841 event pairs, 2270 based on Foata normal form. 0/7294 useless extension candidates. Maximal degree in co-relation 13920. Up to 4730 conditions per place. [2023-08-26 09:32:34,412 INFO L140 encePairwiseOnDemand]: 788/791 looper letters, 43 selfloop transitions, 1 changer transitions 0/115 dead transitions. [2023-08-26 09:32:34,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 115 transitions, 340 flow [2023-08-26 09:32:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:32:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:32:34,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2023-08-26 09:32:34,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4808259587020649 [2023-08-26 09:32:34,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2023-08-26 09:32:34,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2023-08-26 09:32:34,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:34,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2023-08-26 09:32:34,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:34,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:34,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:34,424 INFO L175 Difference]: Start difference. First operand has 115 places, 117 transitions, 256 flow. Second operand 3 states and 1141 transitions. [2023-08-26 09:32:34,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 115 transitions, 340 flow [2023-08-26 09:32:34,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 115 transitions, 340 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:32:34,429 INFO L231 Difference]: Finished difference. Result has 115 places, 115 transitions, 254 flow [2023-08-26 09:32:34,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=115, PETRI_TRANSITIONS=115} [2023-08-26 09:32:34,430 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -35 predicate places. [2023-08-26 09:32:34,430 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 115 transitions, 254 flow [2023-08-26 09:32:34,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:34,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:34,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:34,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 09:32:34,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:34,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 238082531, now seen corresponding path program 1 times [2023-08-26 09:32:34,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:34,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389830132] [2023-08-26 09:32:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:34,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:34,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:34,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:34,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389830132] [2023-08-26 09:32:34,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389830132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:34,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:34,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:32:34,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985325863] [2023-08-26 09:32:34,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:34,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:32:34,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:34,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:32:34,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:32:34,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 791 [2023-08-26 09:32:34,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 115 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 339.25) internal successors, (1357), 4 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:34,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:34,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 791 [2023-08-26 09:32:34,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:35,144 INFO L124 PetriNetUnfolderBase]: 2435/5866 cut-off events. [2023-08-26 09:32:35,145 INFO L125 PetriNetUnfolderBase]: For 633/633 co-relation queries the response was YES. [2023-08-26 09:32:35,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9825 conditions, 5866 events. 2435/5866 cut-off events. For 633/633 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 51723 event pairs, 1411 based on Foata normal form. 1/4687 useless extension candidates. Maximal degree in co-relation 9820. Up to 3257 conditions per place. [2023-08-26 09:32:35,188 INFO L140 encePairwiseOnDemand]: 787/791 looper letters, 40 selfloop transitions, 2 changer transitions 2/118 dead transitions. [2023-08-26 09:32:35,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 348 flow [2023-08-26 09:32:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 09:32:35,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 09:32:35,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1390 transitions. [2023-08-26 09:32:35,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4393173198482933 [2023-08-26 09:32:35,192 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1390 transitions. [2023-08-26 09:32:35,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1390 transitions. [2023-08-26 09:32:35,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:35,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1390 transitions. [2023-08-26 09:32:35,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 347.5) internal successors, (1390), 4 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:35,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 791.0) internal successors, (3955), 5 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:35,202 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 791.0) internal successors, (3955), 5 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:35,202 INFO L175 Difference]: Start difference. First operand has 115 places, 115 transitions, 254 flow. Second operand 4 states and 1390 transitions. [2023-08-26 09:32:35,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 348 flow [2023-08-26 09:32:35,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 118 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:32:35,206 INFO L231 Difference]: Finished difference. Result has 119 places, 116 transitions, 267 flow [2023-08-26 09:32:35,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=119, PETRI_TRANSITIONS=116} [2023-08-26 09:32:35,208 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -31 predicate places. [2023-08-26 09:32:35,208 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 116 transitions, 267 flow [2023-08-26 09:32:35,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 339.25) internal successors, (1357), 4 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:35,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:35,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:35,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 09:32:35,209 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:35,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:35,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1157288537, now seen corresponding path program 1 times [2023-08-26 09:32:35,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:35,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341023830] [2023-08-26 09:32:35,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:35,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:32:35,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:35,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341023830] [2023-08-26 09:32:35,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341023830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:35,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:35,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:32:35,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103173171] [2023-08-26 09:32:35,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:35,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:32:35,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:35,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:32:35,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:32:35,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 791 [2023-08-26 09:32:35,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 116 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:35,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:35,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 791 [2023-08-26 09:32:35,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:45,243 INFO L124 PetriNetUnfolderBase]: 98335/135745 cut-off events. [2023-08-26 09:32:45,243 INFO L125 PetriNetUnfolderBase]: For 9335/9335 co-relation queries the response was YES. [2023-08-26 09:32:45,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276231 conditions, 135745 events. 98335/135745 cut-off events. For 9335/9335 co-relation queries the response was YES. Maximal size of possible extension queue 2780. Compared 980972 event pairs, 11720 based on Foata normal form. 0/118524 useless extension candidates. Maximal degree in co-relation 276224. Up to 49121 conditions per place. [2023-08-26 09:32:46,221 INFO L140 encePairwiseOnDemand]: 786/791 looper letters, 303 selfloop transitions, 4 changer transitions 0/335 dead transitions. [2023-08-26 09:32:46,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 335 transitions, 1379 flow [2023-08-26 09:32:46,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:32:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:32:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2146 transitions. [2023-08-26 09:32:46,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4521702486304256 [2023-08-26 09:32:46,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2146 transitions. [2023-08-26 09:32:46,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2146 transitions. [2023-08-26 09:32:46,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:46,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2146 transitions. [2023-08-26 09:32:46,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 357.6666666666667) internal successors, (2146), 6 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:46,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:46,246 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:46,246 INFO L175 Difference]: Start difference. First operand has 119 places, 116 transitions, 267 flow. Second operand 6 states and 2146 transitions. [2023-08-26 09:32:46,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 335 transitions, 1379 flow [2023-08-26 09:32:46,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 335 transitions, 1373 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-26 09:32:46,257 INFO L231 Difference]: Finished difference. Result has 120 places, 115 transitions, 267 flow [2023-08-26 09:32:46,257 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=120, PETRI_TRANSITIONS=115} [2023-08-26 09:32:46,260 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -30 predicate places. [2023-08-26 09:32:46,260 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 115 transitions, 267 flow [2023-08-26 09:32:46,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:46,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:46,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:46,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 09:32:46,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:46,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:46,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1826052645, now seen corresponding path program 1 times [2023-08-26 09:32:46,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:46,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567223936] [2023-08-26 09:32:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:46,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:32:46,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:46,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567223936] [2023-08-26 09:32:46,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567223936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:46,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:46,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:32:46,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813550060] [2023-08-26 09:32:46,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:46,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:32:46,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:46,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:32:46,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:32:46,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 791 [2023-08-26 09:32:46,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 115 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 303.1666666666667) internal successors, (1819), 6 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:46,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:46,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 791 [2023-08-26 09:32:46,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:56,693 INFO L124 PetriNetUnfolderBase]: 107551/155507 cut-off events. [2023-08-26 09:32:56,693 INFO L125 PetriNetUnfolderBase]: For 30012/30012 co-relation queries the response was YES. [2023-08-26 09:32:57,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329820 conditions, 155507 events. 107551/155507 cut-off events. For 30012/30012 co-relation queries the response was YES. Maximal size of possible extension queue 2860. Compared 1191582 event pairs, 27133 based on Foata normal form. 0/140820 useless extension candidates. Maximal degree in co-relation 329814. Up to 72799 conditions per place. [2023-08-26 09:32:57,658 INFO L140 encePairwiseOnDemand]: 784/791 looper letters, 269 selfloop transitions, 5 changer transitions 0/297 dead transitions. [2023-08-26 09:32:57,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 297 transitions, 1235 flow [2023-08-26 09:32:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:32:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:32:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2078 transitions. [2023-08-26 09:32:57,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43784239359460597 [2023-08-26 09:32:57,664 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2078 transitions. [2023-08-26 09:32:57,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2078 transitions. [2023-08-26 09:32:57,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:57,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2078 transitions. [2023-08-26 09:32:57,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 346.3333333333333) internal successors, (2078), 6 states have internal predecessors, (2078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:57,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:57,675 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:57,675 INFO L175 Difference]: Start difference. First operand has 120 places, 115 transitions, 267 flow. Second operand 6 states and 2078 transitions. [2023-08-26 09:32:57,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 297 transitions, 1235 flow [2023-08-26 09:32:57,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 297 transitions, 1200 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:32:57,727 INFO L231 Difference]: Finished difference. Result has 119 places, 113 transitions, 266 flow [2023-08-26 09:32:57,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=119, PETRI_TRANSITIONS=113} [2023-08-26 09:32:57,728 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -31 predicate places. [2023-08-26 09:32:57,728 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 113 transitions, 266 flow [2023-08-26 09:32:57,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.1666666666667) internal successors, (1819), 6 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:57,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:57,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:57,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 09:32:57,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:57,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:57,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1804991801, now seen corresponding path program 1 times [2023-08-26 09:32:57,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:57,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263872733] [2023-08-26 09:32:57,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:57,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:32:57,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:57,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263872733] [2023-08-26 09:32:57,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263872733] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:32:57,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:32:57,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:32:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116538940] [2023-08-26 09:32:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:32:57,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:32:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:32:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:32:57,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 791 [2023-08-26 09:32:57,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 113 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:57,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:57,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 791 [2023-08-26 09:32:57,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:32:58,412 INFO L124 PetriNetUnfolderBase]: 3485/7771 cut-off events. [2023-08-26 09:32:58,413 INFO L125 PetriNetUnfolderBase]: For 970/970 co-relation queries the response was YES. [2023-08-26 09:32:58,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13572 conditions, 7771 events. 3485/7771 cut-off events. For 970/970 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 67415 event pairs, 2165 based on Foata normal form. 0/7093 useless extension candidates. Maximal degree in co-relation 13566. Up to 4674 conditions per place. [2023-08-26 09:32:58,450 INFO L140 encePairwiseOnDemand]: 787/791 looper letters, 44 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2023-08-26 09:32:58,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 110 transitions, 350 flow [2023-08-26 09:32:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:32:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:32:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1142 transitions. [2023-08-26 09:32:58,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4812473662031184 [2023-08-26 09:32:58,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1142 transitions. [2023-08-26 09:32:58,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1142 transitions. [2023-08-26 09:32:58,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:32:58,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1142 transitions. [2023-08-26 09:32:58,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:58,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:58,471 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:58,471 INFO L175 Difference]: Start difference. First operand has 119 places, 113 transitions, 266 flow. Second operand 3 states and 1142 transitions. [2023-08-26 09:32:58,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 110 transitions, 350 flow [2023-08-26 09:32:58,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 340 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 09:32:58,475 INFO L231 Difference]: Finished difference. Result has 113 places, 110 transitions, 252 flow [2023-08-26 09:32:58,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=113, PETRI_TRANSITIONS=110} [2023-08-26 09:32:58,475 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -37 predicate places. [2023-08-26 09:32:58,475 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 110 transitions, 252 flow [2023-08-26 09:32:58,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:58,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:32:58,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:32:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 09:32:58,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:32:58,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:32:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash 86522313, now seen corresponding path program 1 times [2023-08-26 09:32:58,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:32:58,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671986982] [2023-08-26 09:32:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:58,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:32:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:58,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:32:58,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671986982] [2023-08-26 09:32:58,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671986982] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:32:58,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135691074] [2023-08-26 09:32:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:32:58,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:32:58,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:32:58,613 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) [2023-08-26 09:32:58,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 09:32:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:32:58,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-26 09:32:58,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:32:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:58,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:32:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:32:58,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135691074] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:32:58,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:32:58,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-26 09:32:58,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113222710] [2023-08-26 09:32:58,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:32:58,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-26 09:32:58,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:32:58,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-26 09:32:58,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-08-26 09:32:58,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 791 [2023-08-26 09:32:58,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 110 transitions, 252 flow. Second operand has 13 states, 13 states have (on average 314.9230769230769) internal successors, (4094), 13 states have internal predecessors, (4094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:32:58,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:32:58,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 791 [2023-08-26 09:32:58,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:00,139 INFO L124 PetriNetUnfolderBase]: 7927/14519 cut-off events. [2023-08-26 09:33:00,140 INFO L125 PetriNetUnfolderBase]: For 1651/1651 co-relation queries the response was YES. [2023-08-26 09:33:00,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27338 conditions, 14519 events. 7927/14519 cut-off events. For 1651/1651 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 127752 event pairs, 5025 based on Foata normal form. 142/12810 useless extension candidates. Maximal degree in co-relation 27332. Up to 9340 conditions per place. [2023-08-26 09:33:00,236 INFO L140 encePairwiseOnDemand]: 784/791 looper letters, 106 selfloop transitions, 7 changer transitions 0/167 dead transitions. [2023-08-26 09:33:00,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 167 transitions, 627 flow [2023-08-26 09:33:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 09:33:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 09:33:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2298 transitions. [2023-08-26 09:33:00,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150261874661369 [2023-08-26 09:33:00,243 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2298 transitions. [2023-08-26 09:33:00,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2298 transitions. [2023-08-26 09:33:00,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:00,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2298 transitions. [2023-08-26 09:33:00,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 328.2857142857143) internal successors, (2298), 7 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:00,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 791.0) internal successors, (6328), 8 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:00,426 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 791.0) internal successors, (6328), 8 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:00,426 INFO L175 Difference]: Start difference. First operand has 113 places, 110 transitions, 252 flow. Second operand 7 states and 2298 transitions. [2023-08-26 09:33:00,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 167 transitions, 627 flow [2023-08-26 09:33:00,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 167 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:33:00,429 INFO L231 Difference]: Finished difference. Result has 122 places, 115 transitions, 305 flow [2023-08-26 09:33:00,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=305, PETRI_PLACES=122, PETRI_TRANSITIONS=115} [2023-08-26 09:33:00,431 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -28 predicate places. [2023-08-26 09:33:00,431 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 115 transitions, 305 flow [2023-08-26 09:33:00,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 314.9230769230769) internal successors, (4094), 13 states have internal predecessors, (4094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:00,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:00,434 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:33:00,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 09:33:00,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:33:00,640 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:00,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash 763732101, now seen corresponding path program 2 times [2023-08-26 09:33:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:00,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803749970] [2023-08-26 09:33:00,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:00,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:33:00,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:00,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803749970] [2023-08-26 09:33:00,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803749970] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:33:00,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:33:00,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:33:00,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16745462] [2023-08-26 09:33:00,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:00,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:33:00,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:00,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:33:00,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:33:00,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 791 [2023-08-26 09:33:00,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 115 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 303.5) internal successors, (1821), 6 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:00,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:00,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 791 [2023-08-26 09:33:00,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:11,805 INFO L124 PetriNetUnfolderBase]: 111838/160008 cut-off events. [2023-08-26 09:33:11,805 INFO L125 PetriNetUnfolderBase]: For 28244/28244 co-relation queries the response was YES. [2023-08-26 09:33:12,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338951 conditions, 160008 events. 111838/160008 cut-off events. For 28244/28244 co-relation queries the response was YES. Maximal size of possible extension queue 2881. Compared 1194779 event pairs, 36162 based on Foata normal form. 0/148590 useless extension candidates. Maximal degree in co-relation 338941. Up to 68694 conditions per place. [2023-08-26 09:33:12,783 INFO L140 encePairwiseOnDemand]: 784/791 looper letters, 284 selfloop transitions, 5 changer transitions 0/309 dead transitions. [2023-08-26 09:33:12,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 309 transitions, 1299 flow [2023-08-26 09:33:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:33:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:33:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2088 transitions. [2023-08-26 09:33:12,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43994943109987356 [2023-08-26 09:33:12,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2088 transitions. [2023-08-26 09:33:12,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2088 transitions. [2023-08-26 09:33:12,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:12,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2088 transitions. [2023-08-26 09:33:12,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 348.0) internal successors, (2088), 6 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:12,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:12,800 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:12,800 INFO L175 Difference]: Start difference. First operand has 122 places, 115 transitions, 305 flow. Second operand 6 states and 2088 transitions. [2023-08-26 09:33:12,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 309 transitions, 1299 flow [2023-08-26 09:33:12,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 309 transitions, 1289 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-26 09:33:12,826 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 301 flow [2023-08-26 09:33:12,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2023-08-26 09:33:12,827 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -27 predicate places. [2023-08-26 09:33:12,827 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 301 flow [2023-08-26 09:33:12,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.5) internal successors, (1821), 6 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:12,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:12,828 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] [2023-08-26 09:33:12,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 09:33:12,828 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:12,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:12,829 INFO L85 PathProgramCache]: Analyzing trace with hash 173808904, now seen corresponding path program 1 times [2023-08-26 09:33:12,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:12,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315401679] [2023-08-26 09:33:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:12,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:33:13,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:13,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315401679] [2023-08-26 09:33:13,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315401679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:33:13,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:33:13,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:33:13,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451711126] [2023-08-26 09:33:13,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:13,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:33:13,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:13,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:33:13,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:33:13,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 791 [2023-08-26 09:33:13,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 301 flow. Second operand has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:13,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:13,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 791 [2023-08-26 09:33:13,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:22,597 INFO L124 PetriNetUnfolderBase]: 95684/137585 cut-off events. [2023-08-26 09:33:22,597 INFO L125 PetriNetUnfolderBase]: For 31926/35346 co-relation queries the response was YES. [2023-08-26 09:33:23,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298733 conditions, 137585 events. 95684/137585 cut-off events. For 31926/35346 co-relation queries the response was YES. Maximal size of possible extension queue 2683. Compared 1023840 event pairs, 20843 based on Foata normal form. 3420/136460 useless extension candidates. Maximal degree in co-relation 298723. Up to 67629 conditions per place. [2023-08-26 09:33:23,431 INFO L140 encePairwiseOnDemand]: 784/791 looper letters, 300 selfloop transitions, 5 changer transitions 0/327 dead transitions. [2023-08-26 09:33:23,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 327 transitions, 1439 flow [2023-08-26 09:33:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:33:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:33:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2101 transitions. [2023-08-26 09:33:23,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44268857985672144 [2023-08-26 09:33:23,436 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2101 transitions. [2023-08-26 09:33:23,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2101 transitions. [2023-08-26 09:33:23,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:23,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2101 transitions. [2023-08-26 09:33:23,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 350.1666666666667) internal successors, (2101), 6 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:23,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:23,446 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:23,447 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 301 flow. Second operand 6 states and 2101 transitions. [2023-08-26 09:33:23,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 327 transitions, 1439 flow [2023-08-26 09:33:23,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 327 transitions, 1389 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 09:33:23,500 INFO L231 Difference]: Finished difference. Result has 121 places, 111 transitions, 297 flow [2023-08-26 09:33:23,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2023-08-26 09:33:23,501 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -29 predicate places. [2023-08-26 09:33:23,501 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 297 flow [2023-08-26 09:33:23,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:23,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:23,502 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] [2023-08-26 09:33:23,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 09:33:23,502 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:23,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:23,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1636587093, now seen corresponding path program 1 times [2023-08-26 09:33:23,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:23,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535999625] [2023-08-26 09:33:23,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:23,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:33:23,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535999625] [2023-08-26 09:33:23,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535999625] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:33:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169806999] [2023-08-26 09:33:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:23,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:33:23,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:33:23,614 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) [2023-08-26 09:33:23,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 09:33:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:23,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 09:33:23,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:33:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:33:23,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:33:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:33:23,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169806999] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-26 09:33:23,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-26 09:33:23,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2023-08-26 09:33:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342042128] [2023-08-26 09:33:23,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:23,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 09:33:23,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:23,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 09:33:23,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-26 09:33:23,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 791 [2023-08-26 09:33:23,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 321.8) internal successors, (1609), 5 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:23,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:23,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 791 [2023-08-26 09:33:23,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:24,906 INFO L124 PetriNetUnfolderBase]: 7573/14046 cut-off events. [2023-08-26 09:33:24,906 INFO L125 PetriNetUnfolderBase]: For 5070/5746 co-relation queries the response was YES. [2023-08-26 09:33:24,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29086 conditions, 14046 events. 7573/14046 cut-off events. For 5070/5746 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 112718 event pairs, 3694 based on Foata normal form. 844/13783 useless extension candidates. Maximal degree in co-relation 29076. Up to 8446 conditions per place. [2023-08-26 09:33:24,971 INFO L140 encePairwiseOnDemand]: 785/791 looper letters, 77 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2023-08-26 09:33:24,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 135 transitions, 537 flow [2023-08-26 09:33:24,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:33:24,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:33:24,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1668 transitions. [2023-08-26 09:33:24,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42174462705436155 [2023-08-26 09:33:24,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1668 transitions. [2023-08-26 09:33:24,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1668 transitions. [2023-08-26 09:33:24,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:24,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1668 transitions. [2023-08-26 09:33:24,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 333.6) internal successors, (1668), 5 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:24,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 791.0) internal successors, (4746), 6 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:24,983 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 791.0) internal successors, (4746), 6 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:24,983 INFO L175 Difference]: Start difference. First operand has 121 places, 111 transitions, 297 flow. Second operand 5 states and 1668 transitions. [2023-08-26 09:33:24,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 135 transitions, 537 flow [2023-08-26 09:33:24,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 135 transitions, 523 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 09:33:24,991 INFO L231 Difference]: Finished difference. Result has 122 places, 112 transitions, 312 flow [2023-08-26 09:33:24,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=122, PETRI_TRANSITIONS=112} [2023-08-26 09:33:24,992 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -28 predicate places. [2023-08-26 09:33:24,992 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 112 transitions, 312 flow [2023-08-26 09:33:24,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 321.8) internal successors, (1609), 5 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:24,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:25,008 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] [2023-08-26 09:33:25,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 09:33:25,213 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,SelfDestructingSolverStorable11 [2023-08-26 09:33:25,214 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:25,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:25,214 INFO L85 PathProgramCache]: Analyzing trace with hash -150363018, now seen corresponding path program 1 times [2023-08-26 09:33:25,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:25,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735101589] [2023-08-26 09:33:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:33:25,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:25,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735101589] [2023-08-26 09:33:25,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735101589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:33:25,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:33:25,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:33:25,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536030821] [2023-08-26 09:33:25,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:25,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:33:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:25,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:33:25,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:33:25,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 791 [2023-08-26 09:33:25,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 112 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 314.5) internal successors, (1887), 6 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:25,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:25,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 791 [2023-08-26 09:33:25,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:33,458 INFO L124 PetriNetUnfolderBase]: 74195/108622 cut-off events. [2023-08-26 09:33:33,458 INFO L125 PetriNetUnfolderBase]: For 36747/42850 co-relation queries the response was YES. [2023-08-26 09:33:33,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238491 conditions, 108622 events. 74195/108622 cut-off events. For 36747/42850 co-relation queries the response was YES. Maximal size of possible extension queue 2168. Compared 813665 event pairs, 59223 based on Foata normal form. 6103/110456 useless extension candidates. Maximal degree in co-relation 238479. Up to 95098 conditions per place. [2023-08-26 09:33:34,102 INFO L140 encePairwiseOnDemand]: 786/791 looper letters, 209 selfloop transitions, 4 changer transitions 0/239 dead transitions. [2023-08-26 09:33:34,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 239 transitions, 1040 flow [2023-08-26 09:33:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:33:34,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:33:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2055 transitions. [2023-08-26 09:33:34,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4329962073324905 [2023-08-26 09:33:34,106 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2055 transitions. [2023-08-26 09:33:34,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2055 transitions. [2023-08-26 09:33:34,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:34,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2055 transitions. [2023-08-26 09:33:34,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:34,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:34,115 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:34,115 INFO L175 Difference]: Start difference. First operand has 122 places, 112 transitions, 312 flow. Second operand 6 states and 2055 transitions. [2023-08-26 09:33:34,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 239 transitions, 1040 flow [2023-08-26 09:33:34,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 239 transitions, 1034 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 09:33:34,607 INFO L231 Difference]: Finished difference. Result has 123 places, 111 transitions, 312 flow [2023-08-26 09:33:34,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=123, PETRI_TRANSITIONS=111} [2023-08-26 09:33:34,608 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -27 predicate places. [2023-08-26 09:33:34,608 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 111 transitions, 312 flow [2023-08-26 09:33:34,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.5) internal successors, (1887), 6 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:34,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:34,609 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:33:34,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 09:33:34,609 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:34,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:34,609 INFO L85 PathProgramCache]: Analyzing trace with hash 722767490, now seen corresponding path program 1 times [2023-08-26 09:33:34,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:34,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060000745] [2023-08-26 09:33:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:34,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:33:34,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:34,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060000745] [2023-08-26 09:33:34,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060000745] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:33:34,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:33:34,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:33:34,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365112708] [2023-08-26 09:33:34,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:34,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:33:34,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:34,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:33:34,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:33:34,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 791 [2023-08-26 09:33:34,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 111 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:34,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:34,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 791 [2023-08-26 09:33:34,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:43,036 INFO L124 PetriNetUnfolderBase]: 74163/108560 cut-off events. [2023-08-26 09:33:43,037 INFO L125 PetriNetUnfolderBase]: For 34429/40532 co-relation queries the response was YES. [2023-08-26 09:33:43,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237814 conditions, 108560 events. 74163/108560 cut-off events. For 34429/40532 co-relation queries the response was YES. Maximal size of possible extension queue 2168. Compared 812803 event pairs, 61566 based on Foata normal form. 6103/110426 useless extension candidates. Maximal degree in co-relation 237802. Up to 99145 conditions per place. [2023-08-26 09:33:43,714 INFO L140 encePairwiseOnDemand]: 786/791 looper letters, 144 selfloop transitions, 4 changer transitions 0/174 dead transitions. [2023-08-26 09:33:43,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 174 transitions, 742 flow [2023-08-26 09:33:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:33:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:33:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1994 transitions. [2023-08-26 09:33:43,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4201432785503582 [2023-08-26 09:33:43,718 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1994 transitions. [2023-08-26 09:33:43,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1994 transitions. [2023-08-26 09:33:43,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:43,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1994 transitions. [2023-08-26 09:33:43,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 332.3333333333333) internal successors, (1994), 6 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:43,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:43,725 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 791.0) internal successors, (5537), 7 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:43,725 INFO L175 Difference]: Start difference. First operand has 123 places, 111 transitions, 312 flow. Second operand 6 states and 1994 transitions. [2023-08-26 09:33:43,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 174 transitions, 742 flow [2023-08-26 09:33:44,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 174 transitions, 735 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:33:44,095 INFO L231 Difference]: Finished difference. Result has 123 places, 110 transitions, 311 flow [2023-08-26 09:33:44,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2023-08-26 09:33:44,095 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -27 predicate places. [2023-08-26 09:33:44,095 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 110 transitions, 311 flow [2023-08-26 09:33:44,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:44,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:44,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:33:44,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 09:33:44,096 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:44,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:44,097 INFO L85 PathProgramCache]: Analyzing trace with hash -95125045, now seen corresponding path program 1 times [2023-08-26 09:33:44,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:44,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492119449] [2023-08-26 09:33:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:44,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:33:44,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:44,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492119449] [2023-08-26 09:33:44,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492119449] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:33:44,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:33:44,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 09:33:44,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543190519] [2023-08-26 09:33:44,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:44,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:33:44,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:44,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:33:44,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:33:44,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 791 [2023-08-26 09:33:44,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 110 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 355.75) internal successors, (1423), 4 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:44,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:44,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 791 [2023-08-26 09:33:44,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:44,995 INFO L124 PetriNetUnfolderBase]: 5257/8968 cut-off events. [2023-08-26 09:33:44,995 INFO L125 PetriNetUnfolderBase]: For 5858/6830 co-relation queries the response was YES. [2023-08-26 09:33:45,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20604 conditions, 8968 events. 5257/8968 cut-off events. For 5858/6830 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 68048 event pairs, 696 based on Foata normal form. 1090/9374 useless extension candidates. Maximal degree in co-relation 20592. Up to 5725 conditions per place. [2023-08-26 09:33:45,036 INFO L140 encePairwiseOnDemand]: 786/791 looper letters, 71 selfloop transitions, 5 changer transitions 0/132 dead transitions. [2023-08-26 09:33:45,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 132 transitions, 545 flow [2023-08-26 09:33:45,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 09:33:45,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 09:33:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1464 transitions. [2023-08-26 09:33:45,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46270543615676357 [2023-08-26 09:33:45,039 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1464 transitions. [2023-08-26 09:33:45,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1464 transitions. [2023-08-26 09:33:45,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:45,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1464 transitions. [2023-08-26 09:33:45,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:45,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 791.0) internal successors, (3955), 5 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:45,043 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 791.0) internal successors, (3955), 5 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:45,043 INFO L175 Difference]: Start difference. First operand has 123 places, 110 transitions, 311 flow. Second operand 4 states and 1464 transitions. [2023-08-26 09:33:45,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 132 transitions, 545 flow [2023-08-26 09:33:45,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 132 transitions, 536 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:33:45,046 INFO L231 Difference]: Finished difference. Result has 124 places, 111 transitions, 330 flow [2023-08-26 09:33:45,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=124, PETRI_TRANSITIONS=111} [2023-08-26 09:33:45,047 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -26 predicate places. [2023-08-26 09:33:45,047 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 330 flow [2023-08-26 09:33:45,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 355.75) internal successors, (1423), 4 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:45,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:45,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:33:45,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 09:33:45,047 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:45,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1373991077, now seen corresponding path program 1 times [2023-08-26 09:33:45,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:45,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030263675] [2023-08-26 09:33:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-26 09:33:45,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:45,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030263675] [2023-08-26 09:33:45,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030263675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:33:45,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:33:45,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 09:33:45,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564755670] [2023-08-26 09:33:45,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:45,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:33:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:45,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:33:45,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:33:45,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 791 [2023-08-26 09:33:45,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:45,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:45,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 791 [2023-08-26 09:33:45,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:33:46,381 INFO L124 PetriNetUnfolderBase]: 6187/13899 cut-off events. [2023-08-26 09:33:46,381 INFO L125 PetriNetUnfolderBase]: For 10164/11261 co-relation queries the response was YES. [2023-08-26 09:33:46,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29873 conditions, 13899 events. 6187/13899 cut-off events. For 10164/11261 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 135007 event pairs, 1996 based on Foata normal form. 1099/14047 useless extension candidates. Maximal degree in co-relation 29859. Up to 4636 conditions per place. [2023-08-26 09:33:46,450 INFO L140 encePairwiseOnDemand]: 786/791 looper letters, 77 selfloop transitions, 4 changer transitions 1/145 dead transitions. [2023-08-26 09:33:46,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 145 transitions, 611 flow [2023-08-26 09:33:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:33:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:33:46,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1204 transitions. [2023-08-26 09:33:46,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5073746312684366 [2023-08-26 09:33:46,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1204 transitions. [2023-08-26 09:33:46,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1204 transitions. [2023-08-26 09:33:46,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:33:46,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1204 transitions. [2023-08-26 09:33:46,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:46,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:46,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 791.0) internal successors, (3164), 4 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:46,457 INFO L175 Difference]: Start difference. First operand has 124 places, 111 transitions, 330 flow. Second operand 3 states and 1204 transitions. [2023-08-26 09:33:46,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 145 transitions, 611 flow [2023-08-26 09:33:46,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 145 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 09:33:46,470 INFO L231 Difference]: Finished difference. Result has 125 places, 114 transitions, 351 flow [2023-08-26 09:33:46,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=125, PETRI_TRANSITIONS=114} [2023-08-26 09:33:46,471 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -25 predicate places. [2023-08-26 09:33:46,471 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 114 transitions, 351 flow [2023-08-26 09:33:46,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:46,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:33:46,472 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:33:46,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 09:33:46,472 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:33:46,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:33:46,472 INFO L85 PathProgramCache]: Analyzing trace with hash 300783588, now seen corresponding path program 1 times [2023-08-26 09:33:46,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:33:46,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576362849] [2023-08-26 09:33:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:33:46,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:33:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:33:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 09:33:46,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:33:46,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576362849] [2023-08-26 09:33:46,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576362849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:33:46,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:33:46,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:33:46,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974595836] [2023-08-26 09:33:46,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:33:46,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:33:46,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:33:46,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:33:46,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:33:46,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 791 [2023-08-26 09:33:46,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 114 transitions, 351 flow. Second operand has 7 states, 7 states have (on average 279.42857142857144) internal successors, (1956), 7 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:33:46,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:33:46,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 791 [2023-08-26 09:33:46,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:34:01,663 INFO L124 PetriNetUnfolderBase]: 116522/183095 cut-off events. [2023-08-26 09:34:01,664 INFO L125 PetriNetUnfolderBase]: For 91170/100554 co-relation queries the response was YES. [2023-08-26 09:34:02,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415140 conditions, 183095 events. 116522/183095 cut-off events. For 91170/100554 co-relation queries the response was YES. Maximal size of possible extension queue 3594. Compared 1612175 event pairs, 67235 based on Foata normal form. 10754/190789 useless extension candidates. Maximal degree in co-relation 415125. Up to 84257 conditions per place. [2023-08-26 09:34:02,910 INFO L140 encePairwiseOnDemand]: 783/791 looper letters, 271 selfloop transitions, 9 changer transitions 0/314 dead transitions. [2023-08-26 09:34:02,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 314 transitions, 1501 flow [2023-08-26 09:34:02,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 09:34:02,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 09:34:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2151 transitions. [2023-08-26 09:34:02,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38847751489976523 [2023-08-26 09:34:02,915 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2151 transitions. [2023-08-26 09:34:02,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2151 transitions. [2023-08-26 09:34:02,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:34:02,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2151 transitions. [2023-08-26 09:34:02,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 307.2857142857143) internal successors, (2151), 7 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:02,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 791.0) internal successors, (6328), 8 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:02,921 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 791.0) internal successors, (6328), 8 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:02,921 INFO L175 Difference]: Start difference. First operand has 125 places, 114 transitions, 351 flow. Second operand 7 states and 2151 transitions. [2023-08-26 09:34:02,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 314 transitions, 1501 flow [2023-08-26 09:34:03,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 314 transitions, 1489 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:34:03,514 INFO L231 Difference]: Finished difference. Result has 135 places, 121 transitions, 425 flow [2023-08-26 09:34:03,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=425, PETRI_PLACES=135, PETRI_TRANSITIONS=121} [2023-08-26 09:34:03,515 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -15 predicate places. [2023-08-26 09:34:03,515 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 121 transitions, 425 flow [2023-08-26 09:34:03,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 279.42857142857144) internal successors, (1956), 7 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:03,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:34:03,516 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:34:03,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 09:34:03,516 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:34:03,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:34:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash -767248452, now seen corresponding path program 1 times [2023-08-26 09:34:03,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:34:03,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733348057] [2023-08-26 09:34:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:34:03,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:34:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:34:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:34:04,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:34:04,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733348057] [2023-08-26 09:34:04,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733348057] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:34:04,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79927635] [2023-08-26 09:34:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:34:04,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:34:04,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:34:04,223 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) [2023-08-26 09:34:04,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 09:34:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:34:04,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-26 09:34:04,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:34:04,866 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 23 treesize of output 7 [2023-08-26 09:34:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:34:04,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:34:05,070 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 25 treesize of output 9 [2023-08-26 09:34:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:34:05,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79927635] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:34:05,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:34:05,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 26 [2023-08-26 09:34:05,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592359316] [2023-08-26 09:34:05,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:34:05,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-26 09:34:05,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:34:05,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-26 09:34:05,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-08-26 09:34:05,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 791 [2023-08-26 09:34:05,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 121 transitions, 425 flow. Second operand has 26 states, 26 states have (on average 253.73076923076923) internal successors, (6597), 26 states have internal predecessors, (6597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:05,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:34:05,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 791 [2023-08-26 09:34:05,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:34:38,160 INFO L124 PetriNetUnfolderBase]: 208667/330050 cut-off events. [2023-08-26 09:34:38,160 INFO L125 PetriNetUnfolderBase]: For 216173/236027 co-relation queries the response was YES. [2023-08-26 09:34:39,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781353 conditions, 330050 events. 208667/330050 cut-off events. For 216173/236027 co-relation queries the response was YES. Maximal size of possible extension queue 6116. Compared 3134428 event pairs, 89588 based on Foata normal form. 21938/347201 useless extension candidates. Maximal degree in co-relation 781333. Up to 80754 conditions per place. [2023-08-26 09:34:40,936 INFO L140 encePairwiseOnDemand]: 772/791 looper letters, 939 selfloop transitions, 120 changer transitions 0/1092 dead transitions. [2023-08-26 09:34:40,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 1092 transitions, 5521 flow [2023-08-26 09:34:40,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-08-26 09:34:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-08-26 09:34:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 12180 transitions. [2023-08-26 09:34:40,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3421828908554572 [2023-08-26 09:34:40,949 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 12180 transitions. [2023-08-26 09:34:40,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 12180 transitions. [2023-08-26 09:34:40,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:34:40,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 12180 transitions. [2023-08-26 09:34:40,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 270.6666666666667) internal successors, (12180), 45 states have internal predecessors, (12180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:40,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 791.0) internal successors, (36386), 46 states have internal predecessors, (36386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:40,998 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 791.0) internal successors, (36386), 46 states have internal predecessors, (36386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:40,998 INFO L175 Difference]: Start difference. First operand has 135 places, 121 transitions, 425 flow. Second operand 45 states and 12180 transitions. [2023-08-26 09:34:40,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 1092 transitions, 5521 flow [2023-08-26 09:34:46,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 1092 transitions, 5513 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 09:34:46,775 INFO L231 Difference]: Finished difference. Result has 206 places, 251 transitions, 1634 flow [2023-08-26 09:34:46,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=791, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1634, PETRI_PLACES=206, PETRI_TRANSITIONS=251} [2023-08-26 09:34:46,776 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, 56 predicate places. [2023-08-26 09:34:46,776 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 251 transitions, 1634 flow [2023-08-26 09:34:46,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 253.73076923076923) internal successors, (6597), 26 states have internal predecessors, (6597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:46,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:34:46,777 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:34:46,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 09:34:46,977 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 [2023-08-26 09:34:46,977 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-08-26 09:34:46,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:34:46,978 INFO L85 PathProgramCache]: Analyzing trace with hash 467549962, now seen corresponding path program 1 times [2023-08-26 09:34:46,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:34:46,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023989966] [2023-08-26 09:34:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:34:46,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:34:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:34:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:34:47,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:34:47,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023989966] [2023-08-26 09:34:47,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023989966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:34:47,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:34:47,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:34:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215497418] [2023-08-26 09:34:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:34:47,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:34:47,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:34:47,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:34:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:34:47,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 791 [2023-08-26 09:34:47,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 251 transitions, 1634 flow. Second operand has 7 states, 7 states have (on average 279.7142857142857) internal successors, (1958), 7 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:34:47,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:34:47,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 791 [2023-08-26 09:34:47,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:35:47,265 INFO L124 PetriNetUnfolderBase]: 262241/421472 cut-off events. [2023-08-26 09:35:47,265 INFO L125 PetriNetUnfolderBase]: For 826470/849404 co-relation queries the response was YES.