./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:11:13,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:11:13,826 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:11:13,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:11:13,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:11:13,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:11:13,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:11:13,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:11:13,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:11:13,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:11:13,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:11:13,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:11:13,864 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:11:13,865 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:11:13,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:11:13,866 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:11:13,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:11:13,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:11:13,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:11:13,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:11:13,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:11:13,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:11:13,869 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:11:13,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:11:13,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:11:13,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:11:13,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:11:13,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:11:13,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:11:13,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:11:13,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:11:13,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:11:13,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:11:13,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:11:13,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:11:13,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:11:13,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:11:13,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:11:13,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:11:13,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:11:13,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:11:13,878 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 [2024-10-14 17:11:14,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:11:14,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:11:14,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:11:14,170 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:11:14,170 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:11:14,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2024-10-14 17:11:15,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:11:15,758 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:11:15,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2024-10-14 17:11:15,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84bc2e119/c92f6a94d1ee472590d028ad4b3b2bfd/FLAGe4b282fc3 [2024-10-14 17:11:15,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84bc2e119/c92f6a94d1ee472590d028ad4b3b2bfd [2024-10-14 17:11:15,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:11:15,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:11:15,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:11:15,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:11:15,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:11:15,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:11:15" (1/1) ... [2024-10-14 17:11:15,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74189db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:15, skipping insertion in model container [2024-10-14 17:11:15,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:11:15" (1/1) ... [2024-10-14 17:11:15,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:11:16,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:11:16,094 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:11:16,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:11:16,158 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:11:16,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16 WrapperNode [2024-10-14 17:11:16,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:11:16,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:11:16,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:11:16,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:11:16,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,222 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 488 [2024-10-14 17:11:16,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:11:16,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:11:16,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:11:16,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:11:16,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:11:16,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:11:16,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:11:16,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:11:16,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (1/1) ... [2024-10-14 17:11:16,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:11:16,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:11:16,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:11:16,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:11:16,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:11:16,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 17:11:16,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 17:11:16,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 17:11:16,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 17:11:16,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 17:11:16,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 17:11:16,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:11:16,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:11:16,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:11:16,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:11:16,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:11:16,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:11:16,390 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:11:16,524 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:11:16,526 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:11:17,293 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:11:17,294 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:11:17,328 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:11:17,328 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-14 17:11:17,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:11:17 BoogieIcfgContainer [2024-10-14 17:11:17,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:11:17,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:11:17,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:11:17,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:11:17,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:11:15" (1/3) ... [2024-10-14 17:11:17,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6258bb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:11:17, skipping insertion in model container [2024-10-14 17:11:17,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:11:16" (2/3) ... [2024-10-14 17:11:17,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6258bb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:11:17, skipping insertion in model container [2024-10-14 17:11:17,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:11:17" (3/3) ... [2024-10-14 17:11:17,337 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2024-10-14 17:11:17,354 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:11:17,354 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2024-10-14 17:11:17,355 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:11:17,517 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 17:11:17,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 608 places, 631 transitions, 1283 flow [2024-10-14 17:11:17,929 INFO L124 PetriNetUnfolderBase]: 33/628 cut-off events. [2024-10-14 17:11:17,929 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 17:11:17,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 628 events. 33/628 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1508 event pairs, 0 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 467. Up to 3 conditions per place. [2024-10-14 17:11:17,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 608 places, 631 transitions, 1283 flow [2024-10-14 17:11:17,975 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 587 places, 608 transitions, 1234 flow [2024-10-14 17:11:17,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:11:17,996 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@56122de1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:11:17,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-10-14 17:11:18,003 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:11:18,003 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-14 17:11:18,003 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:11:18,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:18,004 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:18,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:18,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:18,011 INFO L85 PathProgramCache]: Analyzing trace with hash -447807204, now seen corresponding path program 1 times [2024-10-14 17:11:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:18,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826870498] [2024-10-14 17:11:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:18,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:18,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:18,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826870498] [2024-10-14 17:11:18,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826870498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:18,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:18,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:18,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354817818] [2024-10-14 17:11:18,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:18,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:18,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:18,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:18,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:18,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 631 [2024-10-14 17:11:18,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 608 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:18,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:18,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 631 [2024-10-14 17:11:18,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:18,690 INFO L124 PetriNetUnfolderBase]: 56/1488 cut-off events. [2024-10-14 17:11:18,691 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-14 17:11:18,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 1488 events. 56/1488 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8292 event pairs, 20 based on Foata normal form. 42/1290 useless extension candidates. Maximal degree in co-relation 1200. Up to 51 conditions per place. [2024-10-14 17:11:18,728 INFO L140 encePairwiseOnDemand]: 609/631 looper letters, 14 selfloop transitions, 2 changer transitions 7/588 dead transitions. [2024-10-14 17:11:18,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 588 transitions, 1226 flow [2024-10-14 17:11:18,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1812 transitions. [2024-10-14 17:11:18,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9572107765451664 [2024-10-14 17:11:18,755 INFO L175 Difference]: Start difference. First operand has 587 places, 608 transitions, 1234 flow. Second operand 3 states and 1812 transitions. [2024-10-14 17:11:18,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 588 transitions, 1226 flow [2024-10-14 17:11:18,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 588 transitions, 1214 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 17:11:18,777 INFO L231 Difference]: Finished difference. Result has 582 places, 581 transitions, 1172 flow [2024-10-14 17:11:18,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1172, PETRI_PLACES=582, PETRI_TRANSITIONS=581} [2024-10-14 17:11:18,785 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -5 predicate places. [2024-10-14 17:11:18,786 INFO L471 AbstractCegarLoop]: Abstraction has has 582 places, 581 transitions, 1172 flow [2024-10-14 17:11:18,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:18,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:18,788 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:18,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:11:18,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:18,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:18,790 INFO L85 PathProgramCache]: Analyzing trace with hash 929963280, now seen corresponding path program 1 times [2024-10-14 17:11:18,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:18,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7368887] [2024-10-14 17:11:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:18,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:18,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:18,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7368887] [2024-10-14 17:11:18,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7368887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:18,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:18,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:18,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663603266] [2024-10-14 17:11:18,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:18,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:18,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:18,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:18,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:18,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 631 [2024-10-14 17:11:18,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 581 transitions, 1172 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:18,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:18,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 631 [2024-10-14 17:11:18,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:19,154 INFO L124 PetriNetUnfolderBase]: 36/1024 cut-off events. [2024-10-14 17:11:19,154 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 17:11:19,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 1024 events. 36/1024 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4574 event pairs, 12 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 1042. Up to 39 conditions per place. [2024-10-14 17:11:19,181 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 14 selfloop transitions, 2 changer transitions 0/580 dead transitions. [2024-10-14 17:11:19,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 580 transitions, 1202 flow [2024-10-14 17:11:19,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:19,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2024-10-14 17:11:19,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9471737982039091 [2024-10-14 17:11:19,185 INFO L175 Difference]: Start difference. First operand has 582 places, 581 transitions, 1172 flow. Second operand 3 states and 1793 transitions. [2024-10-14 17:11:19,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 580 transitions, 1202 flow [2024-10-14 17:11:19,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 580 transitions, 1198 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:19,195 INFO L231 Difference]: Finished difference. Result has 574 places, 580 transitions, 1170 flow [2024-10-14 17:11:19,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1166, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=574, PETRI_TRANSITIONS=580} [2024-10-14 17:11:19,197 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -13 predicate places. [2024-10-14 17:11:19,197 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 580 transitions, 1170 flow [2024-10-14 17:11:19,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:19,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:19,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:19,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:11:19,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:19,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:19,200 INFO L85 PathProgramCache]: Analyzing trace with hash 32050057, now seen corresponding path program 1 times [2024-10-14 17:11:19,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:19,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358782058] [2024-10-14 17:11:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:19,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:19,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:19,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358782058] [2024-10-14 17:11:19,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358782058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:19,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:19,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:19,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801478917] [2024-10-14 17:11:19,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:19,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:19,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:19,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:19,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:19,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 631 [2024-10-14 17:11:19,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 580 transitions, 1170 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:19,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:19,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 631 [2024-10-14 17:11:19,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:19,626 INFO L124 PetriNetUnfolderBase]: 56/1455 cut-off events. [2024-10-14 17:11:19,626 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2024-10-14 17:11:19,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1517 conditions, 1455 events. 56/1455 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7781 event pairs, 20 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 1475. Up to 51 conditions per place. [2024-10-14 17:11:19,661 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 14 selfloop transitions, 2 changer transitions 0/579 dead transitions. [2024-10-14 17:11:19,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 579 transitions, 1200 flow [2024-10-14 17:11:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2024-10-14 17:11:19,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9471737982039091 [2024-10-14 17:11:19,667 INFO L175 Difference]: Start difference. First operand has 574 places, 580 transitions, 1170 flow. Second operand 3 states and 1793 transitions. [2024-10-14 17:11:19,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 579 transitions, 1200 flow [2024-10-14 17:11:19,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 579 transitions, 1196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:19,678 INFO L231 Difference]: Finished difference. Result has 573 places, 579 transitions, 1168 flow [2024-10-14 17:11:19,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1164, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1168, PETRI_PLACES=573, PETRI_TRANSITIONS=579} [2024-10-14 17:11:19,682 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -14 predicate places. [2024-10-14 17:11:19,682 INFO L471 AbstractCegarLoop]: Abstraction has has 573 places, 579 transitions, 1168 flow [2024-10-14 17:11:19,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:19,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:19,683 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:19,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:11:19,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:19,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:19,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1975053910, now seen corresponding path program 1 times [2024-10-14 17:11:19,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:19,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26460903] [2024-10-14 17:11:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:19,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:19,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:19,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:19,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26460903] [2024-10-14 17:11:19,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26460903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:19,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:19,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:19,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398480423] [2024-10-14 17:11:19,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:19,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:19,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:19,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:19,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:19,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 631 [2024-10-14 17:11:19,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 579 transitions, 1168 flow. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:19,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:19,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 631 [2024-10-14 17:11:19,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:20,347 INFO L124 PetriNetUnfolderBase]: 132/2496 cut-off events. [2024-10-14 17:11:20,348 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:11:20,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 2496 events. 132/2496 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 18546 event pairs, 64 based on Foata normal form. 0/2124 useless extension candidates. Maximal degree in co-relation 2621. Up to 138 conditions per place. [2024-10-14 17:11:20,411 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 16 selfloop transitions, 1 changer transitions 0/574 dead transitions. [2024-10-14 17:11:20,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 574 transitions, 1192 flow [2024-10-14 17:11:20,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:20,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1786 transitions. [2024-10-14 17:11:20,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9434759640781828 [2024-10-14 17:11:20,416 INFO L175 Difference]: Start difference. First operand has 573 places, 579 transitions, 1168 flow. Second operand 3 states and 1786 transitions. [2024-10-14 17:11:20,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 574 transitions, 1192 flow [2024-10-14 17:11:20,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 574 transitions, 1188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:20,425 INFO L231 Difference]: Finished difference. Result has 568 places, 574 transitions, 1156 flow [2024-10-14 17:11:20,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1156, PETRI_PLACES=568, PETRI_TRANSITIONS=574} [2024-10-14 17:11:20,428 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -19 predicate places. [2024-10-14 17:11:20,428 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 574 transitions, 1156 flow [2024-10-14 17:11:20,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:20,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:20,430 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:20,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:11:20,431 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:20,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:20,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1023932628, now seen corresponding path program 1 times [2024-10-14 17:11:20,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:20,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140214617] [2024-10-14 17:11:20,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:20,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:21,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:21,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140214617] [2024-10-14 17:11:21,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140214617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:21,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:21,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:11:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370280319] [2024-10-14 17:11:21,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:21,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:11:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:21,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:11:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:11:21,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 514 out of 631 [2024-10-14 17:11:21,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 574 transitions, 1156 flow. Second operand has 6 states, 6 states have (on average 515.5) internal successors, (3093), 6 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:21,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:21,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 514 of 631 [2024-10-14 17:11:21,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:30,486 INFO L124 PetriNetUnfolderBase]: 12107/56176 cut-off events. [2024-10-14 17:11:30,487 INFO L125 PetriNetUnfolderBase]: For 899/901 co-relation queries the response was YES. [2024-10-14 17:11:30,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73657 conditions, 56176 events. 12107/56176 cut-off events. For 899/901 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 784819 event pairs, 10080 based on Foata normal form. 0/48921 useless extension candidates. Maximal degree in co-relation 73608. Up to 17156 conditions per place. [2024-10-14 17:11:31,029 INFO L140 encePairwiseOnDemand]: 613/631 looper letters, 78 selfloop transitions, 15 changer transitions 0/571 dead transitions. [2024-10-14 17:11:31,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 571 transitions, 1336 flow [2024-10-14 17:11:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:11:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:11:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3180 transitions. [2024-10-14 17:11:31,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8399366085578447 [2024-10-14 17:11:31,036 INFO L175 Difference]: Start difference. First operand has 568 places, 574 transitions, 1156 flow. Second operand 6 states and 3180 transitions. [2024-10-14 17:11:31,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 571 transitions, 1336 flow [2024-10-14 17:11:31,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 571 transitions, 1335 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:31,047 INFO L231 Difference]: Finished difference. Result has 569 places, 571 transitions, 1179 flow [2024-10-14 17:11:31,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1149, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1179, PETRI_PLACES=569, PETRI_TRANSITIONS=571} [2024-10-14 17:11:31,049 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -18 predicate places. [2024-10-14 17:11:31,050 INFO L471 AbstractCegarLoop]: Abstraction has has 569 places, 571 transitions, 1179 flow [2024-10-14 17:11:31,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 515.5) internal successors, (3093), 6 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:31,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:31,052 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:31,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:11:31,053 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:31,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1772920805, now seen corresponding path program 1 times [2024-10-14 17:11:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561647476] [2024-10-14 17:11:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:31,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:31,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561647476] [2024-10-14 17:11:31,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561647476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:31,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:31,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:31,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920788763] [2024-10-14 17:11:31,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:31,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:31,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:31,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:31,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:31,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 631 [2024-10-14 17:11:31,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 571 transitions, 1179 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:31,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:31,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 631 [2024-10-14 17:11:31,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:31,563 INFO L124 PetriNetUnfolderBase]: 62/1744 cut-off events. [2024-10-14 17:11:31,563 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-14 17:11:31,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 1744 events. 62/1744 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9892 event pairs, 20 based on Foata normal form. 0/1484 useless extension candidates. Maximal degree in co-relation 1779. Up to 50 conditions per place. [2024-10-14 17:11:31,590 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/570 dead transitions. [2024-10-14 17:11:31,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 570 transitions, 1207 flow [2024-10-14 17:11:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:31,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1795 transitions. [2024-10-14 17:11:31,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948230322239831 [2024-10-14 17:11:31,595 INFO L175 Difference]: Start difference. First operand has 569 places, 571 transitions, 1179 flow. Second operand 3 states and 1795 transitions. [2024-10-14 17:11:31,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 570 transitions, 1207 flow [2024-10-14 17:11:31,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 570 transitions, 1177 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:11:31,604 INFO L231 Difference]: Finished difference. Result has 565 places, 570 transitions, 1151 flow [2024-10-14 17:11:31,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1151, PETRI_PLACES=565, PETRI_TRANSITIONS=570} [2024-10-14 17:11:31,609 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -22 predicate places. [2024-10-14 17:11:31,609 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 570 transitions, 1151 flow [2024-10-14 17:11:31,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:31,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:31,611 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:31,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:11:31,612 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:31,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2097705736, now seen corresponding path program 1 times [2024-10-14 17:11:31,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:31,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874264278] [2024-10-14 17:11:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:31,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:31,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:31,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874264278] [2024-10-14 17:11:31,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874264278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:31,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:31,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:31,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917196032] [2024-10-14 17:11:31,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:31,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:31,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:31,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:31,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:31,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 631 [2024-10-14 17:11:31,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 570 transitions, 1151 flow. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:31,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:31,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 631 [2024-10-14 17:11:31,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:32,001 INFO L124 PetriNetUnfolderBase]: 78/1635 cut-off events. [2024-10-14 17:11:32,001 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-14 17:11:32,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1740 conditions, 1635 events. 78/1635 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9883 event pairs, 32 based on Foata normal form. 0/1411 useless extension candidates. Maximal degree in co-relation 1690. Up to 87 conditions per place. [2024-10-14 17:11:32,049 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 16 selfloop transitions, 1 changer transitions 0/565 dead transitions. [2024-10-14 17:11:32,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 565 transitions, 1175 flow [2024-10-14 17:11:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:32,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1786 transitions. [2024-10-14 17:11:32,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9434759640781828 [2024-10-14 17:11:32,053 INFO L175 Difference]: Start difference. First operand has 565 places, 570 transitions, 1151 flow. Second operand 3 states and 1786 transitions. [2024-10-14 17:11:32,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 565 transitions, 1175 flow [2024-10-14 17:11:32,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 565 transitions, 1171 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:32,062 INFO L231 Difference]: Finished difference. Result has 560 places, 565 transitions, 1139 flow [2024-10-14 17:11:32,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=560, PETRI_TRANSITIONS=565} [2024-10-14 17:11:32,063 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -27 predicate places. [2024-10-14 17:11:32,064 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 565 transitions, 1139 flow [2024-10-14 17:11:32,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:32,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:32,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:32,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:11:32,066 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:32,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash -531904196, now seen corresponding path program 1 times [2024-10-14 17:11:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:32,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509358327] [2024-10-14 17:11:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:32,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:32,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:32,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509358327] [2024-10-14 17:11:32,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509358327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:32,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:32,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:32,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994935759] [2024-10-14 17:11:32,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:32,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:32,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:32,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:32,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:32,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 631 [2024-10-14 17:11:32,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 565 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:32,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:32,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 631 [2024-10-14 17:11:32,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:32,418 INFO L124 PetriNetUnfolderBase]: 36/1038 cut-off events. [2024-10-14 17:11:32,418 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-14 17:11:32,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 1038 events. 36/1038 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4402 event pairs, 12 based on Foata normal form. 0/908 useless extension candidates. Maximal degree in co-relation 1039. Up to 38 conditions per place. [2024-10-14 17:11:32,431 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/564 dead transitions. [2024-10-14 17:11:32,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 564 transitions, 1167 flow [2024-10-14 17:11:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:32,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1795 transitions. [2024-10-14 17:11:32,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948230322239831 [2024-10-14 17:11:32,435 INFO L175 Difference]: Start difference. First operand has 560 places, 565 transitions, 1139 flow. Second operand 3 states and 1795 transitions. [2024-10-14 17:11:32,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 564 transitions, 1167 flow [2024-10-14 17:11:32,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 564 transitions, 1166 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:32,445 INFO L231 Difference]: Finished difference. Result has 560 places, 564 transitions, 1140 flow [2024-10-14 17:11:32,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1140, PETRI_PLACES=560, PETRI_TRANSITIONS=564} [2024-10-14 17:11:32,448 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -27 predicate places. [2024-10-14 17:11:32,448 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 564 transitions, 1140 flow [2024-10-14 17:11:32,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:32,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:32,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:32,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:11:32,450 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:32,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:32,454 INFO L85 PathProgramCache]: Analyzing trace with hash -652471666, now seen corresponding path program 1 times [2024-10-14 17:11:32,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:32,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874595113] [2024-10-14 17:11:32,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:32,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:32,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:32,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874595113] [2024-10-14 17:11:32,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874595113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:32,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:32,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:32,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241647100] [2024-10-14 17:11:32,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:32,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:32,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:32,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:32,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:32,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 631 [2024-10-14 17:11:32,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 564 transitions, 1140 flow. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:32,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:32,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 631 [2024-10-14 17:11:32,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:32,899 INFO L124 PetriNetUnfolderBase]: 136/2442 cut-off events. [2024-10-14 17:11:32,899 INFO L125 PetriNetUnfolderBase]: For 35/39 co-relation queries the response was YES. [2024-10-14 17:11:32,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 2442 events. 136/2442 cut-off events. For 35/39 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 17707 event pairs, 64 based on Foata normal form. 0/2112 useless extension candidates. Maximal degree in co-relation 2548. Up to 141 conditions per place. [2024-10-14 17:11:32,947 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 16 selfloop transitions, 1 changer transitions 0/559 dead transitions. [2024-10-14 17:11:32,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 559 transitions, 1164 flow [2024-10-14 17:11:32,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:32,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:32,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1786 transitions. [2024-10-14 17:11:32,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9434759640781828 [2024-10-14 17:11:32,953 INFO L175 Difference]: Start difference. First operand has 560 places, 564 transitions, 1140 flow. Second operand 3 states and 1786 transitions. [2024-10-14 17:11:32,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 559 transitions, 1164 flow [2024-10-14 17:11:32,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 559 transitions, 1160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:32,962 INFO L231 Difference]: Finished difference. Result has 555 places, 559 transitions, 1128 flow [2024-10-14 17:11:32,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=555, PETRI_TRANSITIONS=559} [2024-10-14 17:11:32,964 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -32 predicate places. [2024-10-14 17:11:32,964 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 559 transitions, 1128 flow [2024-10-14 17:11:32,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:32,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:32,965 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:32,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:11:32,966 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:32,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:32,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1387397697, now seen corresponding path program 1 times [2024-10-14 17:11:32,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:32,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861127872] [2024-10-14 17:11:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:32,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:33,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:33,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861127872] [2024-10-14 17:11:33,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861127872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:33,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:33,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:33,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099847708] [2024-10-14 17:11:33,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:33,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:33,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:33,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:33,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:33,052 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 631 [2024-10-14 17:11:33,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 559 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:33,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:33,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 631 [2024-10-14 17:11:33,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:33,193 INFO L124 PetriNetUnfolderBase]: 38/810 cut-off events. [2024-10-14 17:11:33,193 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2024-10-14 17:11:33,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 810 events. 38/810 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3028 event pairs, 20 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 822. Up to 50 conditions per place. [2024-10-14 17:11:33,211 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/558 dead transitions. [2024-10-14 17:11:33,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 558 transitions, 1156 flow [2024-10-14 17:11:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:33,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1795 transitions. [2024-10-14 17:11:33,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948230322239831 [2024-10-14 17:11:33,216 INFO L175 Difference]: Start difference. First operand has 555 places, 559 transitions, 1128 flow. Second operand 3 states and 1795 transitions. [2024-10-14 17:11:33,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 558 transitions, 1156 flow [2024-10-14 17:11:33,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 558 transitions, 1155 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:33,225 INFO L231 Difference]: Finished difference. Result has 555 places, 558 transitions, 1129 flow [2024-10-14 17:11:33,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1129, PETRI_PLACES=555, PETRI_TRANSITIONS=558} [2024-10-14 17:11:33,227 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -32 predicate places. [2024-10-14 17:11:33,227 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 558 transitions, 1129 flow [2024-10-14 17:11:33,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:33,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:33,229 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:33,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:11:33,229 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:33,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:33,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1341973257, now seen corresponding path program 1 times [2024-10-14 17:11:33,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:33,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066326854] [2024-10-14 17:11:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:33,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:33,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:33,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066326854] [2024-10-14 17:11:33,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066326854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:33,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:33,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:33,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32418333] [2024-10-14 17:11:33,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:33,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:33,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:33,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:33,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:33,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 631 [2024-10-14 17:11:33,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 558 transitions, 1129 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:33,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:33,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 631 [2024-10-14 17:11:33,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:33,508 INFO L124 PetriNetUnfolderBase]: 34/990 cut-off events. [2024-10-14 17:11:33,508 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:11:33,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 990 events. 34/990 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4345 event pairs, 6 based on Foata normal form. 0/878 useless extension candidates. Maximal degree in co-relation 994. Up to 23 conditions per place. [2024-10-14 17:11:33,527 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 12 selfloop transitions, 2 changer transitions 0/559 dead transitions. [2024-10-14 17:11:33,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 559 transitions, 1161 flow [2024-10-14 17:11:33,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2024-10-14 17:11:33,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9540412044374009 [2024-10-14 17:11:33,532 INFO L175 Difference]: Start difference. First operand has 555 places, 558 transitions, 1129 flow. Second operand 3 states and 1806 transitions. [2024-10-14 17:11:33,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 559 transitions, 1161 flow [2024-10-14 17:11:33,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 559 transitions, 1157 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:33,545 INFO L231 Difference]: Finished difference. Result has 554 places, 557 transitions, 1127 flow [2024-10-14 17:11:33,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1127, PETRI_PLACES=554, PETRI_TRANSITIONS=557} [2024-10-14 17:11:33,546 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -33 predicate places. [2024-10-14 17:11:33,547 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 557 transitions, 1127 flow [2024-10-14 17:11:33,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:33,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:33,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:33,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:11:33,549 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:33,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:33,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2126152066, now seen corresponding path program 1 times [2024-10-14 17:11:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:33,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978546478] [2024-10-14 17:11:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:33,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:33,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:33,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978546478] [2024-10-14 17:11:33,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978546478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:33,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:33,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:33,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266894543] [2024-10-14 17:11:33,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:33,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:33,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:33,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:33,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:33,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-14 17:11:33,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 557 transitions, 1127 flow. Second operand has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:33,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:33,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-14 17:11:33,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:33,848 INFO L124 PetriNetUnfolderBase]: 31/876 cut-off events. [2024-10-14 17:11:33,849 INFO L125 PetriNetUnfolderBase]: For 7/13 co-relation queries the response was YES. [2024-10-14 17:11:33,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 876 events. 31/876 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3404 event pairs, 6 based on Foata normal form. 1/783 useless extension candidates. Maximal degree in co-relation 876. Up to 24 conditions per place. [2024-10-14 17:11:33,869 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/558 dead transitions. [2024-10-14 17:11:33,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 558 transitions, 1161 flow [2024-10-14 17:11:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1804 transitions. [2024-10-14 17:11:33,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529846804014791 [2024-10-14 17:11:33,874 INFO L175 Difference]: Start difference. First operand has 554 places, 557 transitions, 1127 flow. Second operand 3 states and 1804 transitions. [2024-10-14 17:11:33,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 558 transitions, 1161 flow [2024-10-14 17:11:33,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 558 transitions, 1157 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:33,888 INFO L231 Difference]: Finished difference. Result has 553 places, 556 transitions, 1125 flow [2024-10-14 17:11:33,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=553, PETRI_TRANSITIONS=556} [2024-10-14 17:11:33,889 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -34 predicate places. [2024-10-14 17:11:33,890 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 556 transitions, 1125 flow [2024-10-14 17:11:33,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:33,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:33,892 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:33,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:11:33,892 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:33,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:33,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1305878310, now seen corresponding path program 1 times [2024-10-14 17:11:33,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:33,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635890163] [2024-10-14 17:11:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:33,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:33,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:33,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635890163] [2024-10-14 17:11:33,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635890163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:33,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:33,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:11:33,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345511843] [2024-10-14 17:11:33,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:33,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:33,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:33,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:33,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:33,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-14 17:11:33,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 556 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:33,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:33,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-14 17:11:33,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:34,188 INFO L124 PetriNetUnfolderBase]: 40/991 cut-off events. [2024-10-14 17:11:34,189 INFO L125 PetriNetUnfolderBase]: For 2/18 co-relation queries the response was YES. [2024-10-14 17:11:34,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 991 events. 40/991 cut-off events. For 2/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4307 event pairs, 12 based on Foata normal form. 1/879 useless extension candidates. Maximal degree in co-relation 1022. Up to 39 conditions per place. [2024-10-14 17:11:34,209 INFO L140 encePairwiseOnDemand]: 627/631 looper letters, 14 selfloop transitions, 3 changer transitions 0/559 dead transitions. [2024-10-14 17:11:34,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 559 transitions, 1167 flow [2024-10-14 17:11:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2024-10-14 17:11:34,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9540412044374009 [2024-10-14 17:11:34,214 INFO L175 Difference]: Start difference. First operand has 553 places, 556 transitions, 1125 flow. Second operand 3 states and 1806 transitions. [2024-10-14 17:11:34,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 559 transitions, 1167 flow [2024-10-14 17:11:34,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 559 transitions, 1163 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:34,228 INFO L231 Difference]: Finished difference. Result has 555 places, 557 transitions, 1139 flow [2024-10-14 17:11:34,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=555, PETRI_TRANSITIONS=557} [2024-10-14 17:11:34,230 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -32 predicate places. [2024-10-14 17:11:34,230 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 557 transitions, 1139 flow [2024-10-14 17:11:34,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:34,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:34,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:34,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 17:11:34,232 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:34,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash 327144343, now seen corresponding path program 1 times [2024-10-14 17:11:34,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:34,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207890967] [2024-10-14 17:11:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:34,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:34,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:34,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207890967] [2024-10-14 17:11:34,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207890967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:34,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:34,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:34,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972807957] [2024-10-14 17:11:34,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:34,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:34,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:34,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:34,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:34,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 631 [2024-10-14 17:11:34,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 557 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:34,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:34,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 631 [2024-10-14 17:11:34,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:34,816 INFO L124 PetriNetUnfolderBase]: 131/2146 cut-off events. [2024-10-14 17:11:34,816 INFO L125 PetriNetUnfolderBase]: For 26/28 co-relation queries the response was YES. [2024-10-14 17:11:34,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 2146 events. 131/2146 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14800 event pairs, 24 based on Foata normal form. 0/1905 useless extension candidates. Maximal degree in co-relation 2343. Up to 154 conditions per place. [2024-10-14 17:11:34,863 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 20 selfloop transitions, 2 changer transitions 0/560 dead transitions. [2024-10-14 17:11:34,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 560 transitions, 1194 flow [2024-10-14 17:11:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:34,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1799 transitions. [2024-10-14 17:11:34,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9503433703116746 [2024-10-14 17:11:34,869 INFO L175 Difference]: Start difference. First operand has 555 places, 557 transitions, 1139 flow. Second operand 3 states and 1799 transitions. [2024-10-14 17:11:34,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 560 transitions, 1194 flow [2024-10-14 17:11:34,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 560 transitions, 1188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:34,881 INFO L231 Difference]: Finished difference. Result has 552 places, 555 transitions, 1139 flow [2024-10-14 17:11:34,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=552, PETRI_TRANSITIONS=555} [2024-10-14 17:11:34,883 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -35 predicate places. [2024-10-14 17:11:34,883 INFO L471 AbstractCegarLoop]: Abstraction has has 552 places, 555 transitions, 1139 flow [2024-10-14 17:11:34,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:34,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:34,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:34,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 17:11:34,885 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:34,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:34,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1801575874, now seen corresponding path program 1 times [2024-10-14 17:11:34,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:34,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2298308] [2024-10-14 17:11:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:34,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:34,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:34,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2298308] [2024-10-14 17:11:34,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2298308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:34,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:34,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:34,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131636467] [2024-10-14 17:11:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:34,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:34,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-14 17:11:34,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 555 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:34,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:34,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-14 17:11:34,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:35,234 INFO L124 PetriNetUnfolderBase]: 63/1137 cut-off events. [2024-10-14 17:11:35,234 INFO L125 PetriNetUnfolderBase]: For 36/52 co-relation queries the response was YES. [2024-10-14 17:11:35,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 1137 events. 63/1137 cut-off events. For 36/52 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5464 event pairs, 12 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1187. Up to 49 conditions per place. [2024-10-14 17:11:35,258 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/556 dead transitions. [2024-10-14 17:11:35,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 556 transitions, 1173 flow [2024-10-14 17:11:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1804 transitions. [2024-10-14 17:11:35,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529846804014791 [2024-10-14 17:11:35,264 INFO L175 Difference]: Start difference. First operand has 552 places, 555 transitions, 1139 flow. Second operand 3 states and 1804 transitions. [2024-10-14 17:11:35,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 556 transitions, 1173 flow [2024-10-14 17:11:35,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 556 transitions, 1173 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:11:35,274 INFO L231 Difference]: Finished difference. Result has 553 places, 554 transitions, 1141 flow [2024-10-14 17:11:35,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1141, PETRI_PLACES=553, PETRI_TRANSITIONS=554} [2024-10-14 17:11:35,277 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -34 predicate places. [2024-10-14 17:11:35,277 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 554 transitions, 1141 flow [2024-10-14 17:11:35,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:35,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:35,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:35,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 17:11:35,279 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:35,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1148090203, now seen corresponding path program 1 times [2024-10-14 17:11:35,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:35,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190393976] [2024-10-14 17:11:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:35,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:35,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:35,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190393976] [2024-10-14 17:11:35,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190393976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:35,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:35,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 17:11:35,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465190296] [2024-10-14 17:11:35,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:35,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:11:35,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:35,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:11:35,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 17:11:36,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 631 [2024-10-14 17:11:36,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 554 transitions, 1141 flow. Second operand has 8 states, 8 states have (on average 569.125) internal successors, (4553), 8 states have internal predecessors, (4553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:36,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:36,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 631 [2024-10-14 17:11:36,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:36,609 INFO L124 PetriNetUnfolderBase]: 98/1577 cut-off events. [2024-10-14 17:11:36,609 INFO L125 PetriNetUnfolderBase]: For 6/38 co-relation queries the response was YES. [2024-10-14 17:11:36,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1946 conditions, 1577 events. 98/1577 cut-off events. For 6/38 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8549 event pairs, 45 based on Foata normal form. 5/1448 useless extension candidates. Maximal degree in co-relation 1893. Up to 158 conditions per place. [2024-10-14 17:11:36,635 INFO L140 encePairwiseOnDemand]: 617/631 looper letters, 69 selfloop transitions, 15 changer transitions 0/592 dead transitions. [2024-10-14 17:11:36,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 592 transitions, 1401 flow [2024-10-14 17:11:36,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:11:36,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:11:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 6299 transitions. [2024-10-14 17:11:36,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9075061230370264 [2024-10-14 17:11:36,650 INFO L175 Difference]: Start difference. First operand has 553 places, 554 transitions, 1141 flow. Second operand 11 states and 6299 transitions. [2024-10-14 17:11:36,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 592 transitions, 1401 flow [2024-10-14 17:11:36,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 592 transitions, 1397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:36,663 INFO L231 Difference]: Finished difference. Result has 566 places, 562 transitions, 1213 flow [2024-10-14 17:11:36,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1213, PETRI_PLACES=566, PETRI_TRANSITIONS=562} [2024-10-14 17:11:36,666 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -21 predicate places. [2024-10-14 17:11:36,666 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 562 transitions, 1213 flow [2024-10-14 17:11:36,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 569.125) internal successors, (4553), 8 states have internal predecessors, (4553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:36,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:36,672 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:36,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 17:11:36,673 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:36,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -91014793, now seen corresponding path program 1 times [2024-10-14 17:11:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:36,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664273360] [2024-10-14 17:11:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:36,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:36,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:36,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664273360] [2024-10-14 17:11:36,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664273360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:36,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:36,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:11:36,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337370371] [2024-10-14 17:11:36,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:36,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:36,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:36,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:36,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:36,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-14 17:11:36,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 562 transitions, 1213 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:36,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:36,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-14 17:11:36,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:37,160 INFO L124 PetriNetUnfolderBase]: 132/1836 cut-off events. [2024-10-14 17:11:37,161 INFO L125 PetriNetUnfolderBase]: For 91/154 co-relation queries the response was YES. [2024-10-14 17:11:37,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 1836 events. 132/1836 cut-off events. For 91/154 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 10819 event pairs, 48 based on Foata normal form. 0/1618 useless extension candidates. Maximal degree in co-relation 2062. Up to 149 conditions per place. [2024-10-14 17:11:37,200 INFO L140 encePairwiseOnDemand]: 627/631 looper letters, 14 selfloop transitions, 3 changer transitions 0/565 dead transitions. [2024-10-14 17:11:37,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 565 transitions, 1255 flow [2024-10-14 17:11:37,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:37,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2024-10-14 17:11:37,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9540412044374009 [2024-10-14 17:11:37,206 INFO L175 Difference]: Start difference. First operand has 566 places, 562 transitions, 1213 flow. Second operand 3 states and 1806 transitions. [2024-10-14 17:11:37,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 565 transitions, 1255 flow [2024-10-14 17:11:37,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 565 transitions, 1251 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:37,218 INFO L231 Difference]: Finished difference. Result has 569 places, 563 transitions, 1227 flow [2024-10-14 17:11:37,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1209, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1227, PETRI_PLACES=569, PETRI_TRANSITIONS=563} [2024-10-14 17:11:37,219 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -18 predicate places. [2024-10-14 17:11:37,219 INFO L471 AbstractCegarLoop]: Abstraction has has 569 places, 563 transitions, 1227 flow [2024-10-14 17:11:37,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:37,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:37,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:37,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 17:11:37,220 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:37,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1168322408, now seen corresponding path program 1 times [2024-10-14 17:11:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:37,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486371936] [2024-10-14 17:11:37,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:37,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:37,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:37,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:37,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486371936] [2024-10-14 17:11:37,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486371936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:37,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:37,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:11:37,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661072041] [2024-10-14 17:11:37,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:37,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:37,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:37,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:37,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:37,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-14 17:11:37,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 563 transitions, 1227 flow. Second operand has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:37,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:37,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-14 17:11:37,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:37,782 INFO L124 PetriNetUnfolderBase]: 137/1985 cut-off events. [2024-10-14 17:11:37,782 INFO L125 PetriNetUnfolderBase]: For 68/101 co-relation queries the response was YES. [2024-10-14 17:11:37,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2366 conditions, 1985 events. 137/1985 cut-off events. For 68/101 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 13012 event pairs, 48 based on Foata normal form. 0/1779 useless extension candidates. Maximal degree in co-relation 2307. Up to 152 conditions per place. [2024-10-14 17:11:37,820 INFO L140 encePairwiseOnDemand]: 627/631 looper letters, 14 selfloop transitions, 3 changer transitions 0/566 dead transitions. [2024-10-14 17:11:37,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 566 transitions, 1269 flow [2024-10-14 17:11:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:37,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2024-10-14 17:11:37,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9540412044374009 [2024-10-14 17:11:37,825 INFO L175 Difference]: Start difference. First operand has 569 places, 563 transitions, 1227 flow. Second operand 3 states and 1806 transitions. [2024-10-14 17:11:37,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 566 transitions, 1269 flow [2024-10-14 17:11:37,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 566 transitions, 1263 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:37,835 INFO L231 Difference]: Finished difference. Result has 571 places, 564 transitions, 1239 flow [2024-10-14 17:11:37,836 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1239, PETRI_PLACES=571, PETRI_TRANSITIONS=564} [2024-10-14 17:11:37,836 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -16 predicate places. [2024-10-14 17:11:37,837 INFO L471 AbstractCegarLoop]: Abstraction has has 571 places, 564 transitions, 1239 flow [2024-10-14 17:11:37,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:37,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:37,837 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:37,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 17:11:37,838 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:37,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:37,838 INFO L85 PathProgramCache]: Analyzing trace with hash -576927796, now seen corresponding path program 1 times [2024-10-14 17:11:37,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:37,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911075694] [2024-10-14 17:11:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:37,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:37,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:37,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911075694] [2024-10-14 17:11:37,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911075694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:37,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:37,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088372146] [2024-10-14 17:11:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:37,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:37,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:37,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:37,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:37,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 631 [2024-10-14 17:11:37,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 571 places, 564 transitions, 1239 flow. Second operand has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:37,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:37,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 631 [2024-10-14 17:11:37,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:38,618 INFO L124 PetriNetUnfolderBase]: 187/3283 cut-off events. [2024-10-14 17:11:38,618 INFO L125 PetriNetUnfolderBase]: For 58/76 co-relation queries the response was YES. [2024-10-14 17:11:38,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3793 conditions, 3283 events. 187/3283 cut-off events. For 58/76 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 25315 event pairs, 33 based on Foata normal form. 0/2960 useless extension candidates. Maximal degree in co-relation 3733. Up to 220 conditions per place. [2024-10-14 17:11:38,675 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 20 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2024-10-14 17:11:38,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 567 transitions, 1294 flow [2024-10-14 17:11:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:11:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:11:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1799 transitions. [2024-10-14 17:11:38,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9503433703116746 [2024-10-14 17:11:38,680 INFO L175 Difference]: Start difference. First operand has 571 places, 564 transitions, 1239 flow. Second operand 3 states and 1799 transitions. [2024-10-14 17:11:38,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 567 transitions, 1294 flow [2024-10-14 17:11:38,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 567 transitions, 1288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:11:38,692 INFO L231 Difference]: Finished difference. Result has 568 places, 562 transitions, 1239 flow [2024-10-14 17:11:38,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1239, PETRI_PLACES=568, PETRI_TRANSITIONS=562} [2024-10-14 17:11:38,693 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -19 predicate places. [2024-10-14 17:11:38,694 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 562 transitions, 1239 flow [2024-10-14 17:11:38,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:38,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:38,695 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:38,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 17:11:38,695 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:38,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:38,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1697505040, now seen corresponding path program 1 times [2024-10-14 17:11:38,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:38,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145242435] [2024-10-14 17:11:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:38,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:38,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:38,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:38,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145242435] [2024-10-14 17:11:38,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145242435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:38,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:38,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 17:11:38,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782163592] [2024-10-14 17:11:38,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:38,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:11:38,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:38,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:11:38,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 17:11:39,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 631 [2024-10-14 17:11:39,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 562 transitions, 1239 flow. Second operand has 8 states, 8 states have (on average 569.25) internal successors, (4554), 8 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:39,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:39,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 631 [2024-10-14 17:11:39,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:40,295 INFO L124 PetriNetUnfolderBase]: 170/2424 cut-off events. [2024-10-14 17:11:40,296 INFO L125 PetriNetUnfolderBase]: For 82/134 co-relation queries the response was YES. [2024-10-14 17:11:40,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3024 conditions, 2424 events. 170/2424 cut-off events. For 82/134 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 16324 event pairs, 79 based on Foata normal form. 3/2187 useless extension candidates. Maximal degree in co-relation 2962. Up to 259 conditions per place. [2024-10-14 17:11:40,355 INFO L140 encePairwiseOnDemand]: 617/631 looper letters, 69 selfloop transitions, 15 changer transitions 0/595 dead transitions. [2024-10-14 17:11:40,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 595 transitions, 1489 flow [2024-10-14 17:11:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:11:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:11:40,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 6299 transitions. [2024-10-14 17:11:40,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9075061230370264 [2024-10-14 17:11:40,368 INFO L175 Difference]: Start difference. First operand has 568 places, 562 transitions, 1239 flow. Second operand 11 states and 6299 transitions. [2024-10-14 17:11:40,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 595 transitions, 1489 flow [2024-10-14 17:11:40,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 595 transitions, 1489 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:11:40,377 INFO L231 Difference]: Finished difference. Result has 581 places, 565 transitions, 1294 flow [2024-10-14 17:11:40,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1239, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1294, PETRI_PLACES=581, PETRI_TRANSITIONS=565} [2024-10-14 17:11:40,377 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -6 predicate places. [2024-10-14 17:11:40,378 INFO L471 AbstractCegarLoop]: Abstraction has has 581 places, 565 transitions, 1294 flow [2024-10-14 17:11:40,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 569.25) internal successors, (4554), 8 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:40,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:40,379 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:40,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 17:11:40,379 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:40,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash 54425104, now seen corresponding path program 1 times [2024-10-14 17:11:40,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:40,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089212749] [2024-10-14 17:11:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:40,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:11:40,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:40,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089212749] [2024-10-14 17:11:40,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089212749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:40,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:40,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 17:11:40,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584099476] [2024-10-14 17:11:40,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:40,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:11:40,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:40,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:11:40,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 17:11:41,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 631 [2024-10-14 17:11:41,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 565 transitions, 1294 flow. Second operand has 8 states, 8 states have (on average 569.375) internal successors, (4555), 8 states have internal predecessors, (4555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:41,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:41,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 631 [2024-10-14 17:11:41,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:42,083 INFO L124 PetriNetUnfolderBase]: 245/3127 cut-off events. [2024-10-14 17:11:42,084 INFO L125 PetriNetUnfolderBase]: For 227/285 co-relation queries the response was YES. [2024-10-14 17:11:42,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3984 conditions, 3127 events. 245/3127 cut-off events. For 227/285 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 24221 event pairs, 103 based on Foata normal form. 10/2849 useless extension candidates. Maximal degree in co-relation 3915. Up to 347 conditions per place. [2024-10-14 17:11:42,134 INFO L140 encePairwiseOnDemand]: 617/631 looper letters, 65 selfloop transitions, 15 changer transitions 0/594 dead transitions. [2024-10-14 17:11:42,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 594 transitions, 1528 flow [2024-10-14 17:11:42,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:11:42,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:11:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 6290 transitions. [2024-10-14 17:11:42,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9062094799020314 [2024-10-14 17:11:42,148 INFO L175 Difference]: Start difference. First operand has 581 places, 565 transitions, 1294 flow. Second operand 11 states and 6290 transitions. [2024-10-14 17:11:42,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 594 transitions, 1528 flow [2024-10-14 17:11:42,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 584 places, 594 transitions, 1507 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-14 17:11:42,162 INFO L231 Difference]: Finished difference. Result has 589 places, 573 transitions, 1349 flow [2024-10-14 17:11:42,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1273, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1349, PETRI_PLACES=589, PETRI_TRANSITIONS=573} [2024-10-14 17:11:42,163 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, 2 predicate places. [2024-10-14 17:11:42,163 INFO L471 AbstractCegarLoop]: Abstraction has has 589 places, 573 transitions, 1349 flow [2024-10-14 17:11:42,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 569.375) internal successors, (4555), 8 states have internal predecessors, (4555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:42,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:42,165 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:42,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 17:11:42,165 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:42,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1256598994, now seen corresponding path program 1 times [2024-10-14 17:11:42,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:42,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477067991] [2024-10-14 17:11:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:42,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:11:42,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:42,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477067991] [2024-10-14 17:11:42,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477067991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:42,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:42,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 17:11:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539621614] [2024-10-14 17:11:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:42,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:11:42,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:11:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 17:11:42,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 631 [2024-10-14 17:11:42,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 573 transitions, 1349 flow. Second operand has 8 states, 8 states have (on average 569.25) internal successors, (4554), 8 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:42,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:42,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 631 [2024-10-14 17:11:42,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:43,409 INFO L124 PetriNetUnfolderBase]: 147/2380 cut-off events. [2024-10-14 17:11:43,409 INFO L125 PetriNetUnfolderBase]: For 118/172 co-relation queries the response was YES. [2024-10-14 17:11:43,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3233 conditions, 2380 events. 147/2380 cut-off events. For 118/172 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 15183 event pairs, 55 based on Foata normal form. 2/2219 useless extension candidates. Maximal degree in co-relation 3157. Up to 233 conditions per place. [2024-10-14 17:11:43,442 INFO L140 encePairwiseOnDemand]: 616/631 looper letters, 71 selfloop transitions, 18 changer transitions 0/603 dead transitions. [2024-10-14 17:11:43,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 603 transitions, 1627 flow [2024-10-14 17:11:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:11:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:11:43,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 6292 transitions. [2024-10-14 17:11:43,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9064976228209192 [2024-10-14 17:11:43,453 INFO L175 Difference]: Start difference. First operand has 589 places, 573 transitions, 1349 flow. Second operand 11 states and 6292 transitions. [2024-10-14 17:11:43,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 603 transitions, 1627 flow [2024-10-14 17:11:43,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 603 transitions, 1623 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:43,467 INFO L231 Difference]: Finished difference. Result has 601 places, 579 transitions, 1440 flow [2024-10-14 17:11:43,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1345, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1440, PETRI_PLACES=601, PETRI_TRANSITIONS=579} [2024-10-14 17:11:43,468 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, 14 predicate places. [2024-10-14 17:11:43,468 INFO L471 AbstractCegarLoop]: Abstraction has has 601 places, 579 transitions, 1440 flow [2024-10-14 17:11:43,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 569.25) internal successors, (4554), 8 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:43,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:43,470 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:43,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 17:11:43,470 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:43,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:43,471 INFO L85 PathProgramCache]: Analyzing trace with hash -248585689, now seen corresponding path program 1 times [2024-10-14 17:11:43,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:43,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355482565] [2024-10-14 17:11:43,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:43,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:11:43,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:43,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355482565] [2024-10-14 17:11:43,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355482565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:43,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:43,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 17:11:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410438583] [2024-10-14 17:11:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:43,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:11:43,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:43,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:11:43,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 17:11:44,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 631 [2024-10-14 17:11:44,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 579 transitions, 1440 flow. Second operand has 8 states, 8 states have (on average 569.375) internal successors, (4555), 8 states have internal predecessors, (4555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:44,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:44,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 631 [2024-10-14 17:11:44,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:45,518 INFO L124 PetriNetUnfolderBase]: 338/4947 cut-off events. [2024-10-14 17:11:45,518 INFO L125 PetriNetUnfolderBase]: For 466/624 co-relation queries the response was YES. [2024-10-14 17:11:45,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6675 conditions, 4947 events. 338/4947 cut-off events. For 466/624 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 42978 event pairs, 159 based on Foata normal form. 2/4532 useless extension candidates. Maximal degree in co-relation 6594. Up to 453 conditions per place. [2024-10-14 17:11:45,568 INFO L140 encePairwiseOnDemand]: 616/631 looper letters, 67 selfloop transitions, 18 changer transitions 0/605 dead transitions. [2024-10-14 17:11:45,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 605 transitions, 1702 flow [2024-10-14 17:11:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:11:45,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:11:45,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 6283 transitions. [2024-10-14 17:11:45,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9052009796859242 [2024-10-14 17:11:45,574 INFO L175 Difference]: Start difference. First operand has 601 places, 579 transitions, 1440 flow. Second operand 11 states and 6283 transitions. [2024-10-14 17:11:45,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 605 transitions, 1702 flow [2024-10-14 17:11:45,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 605 transitions, 1681 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-14 17:11:45,589 INFO L231 Difference]: Finished difference. Result has 609 places, 590 transitions, 1535 flow [2024-10-14 17:11:45,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1419, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1535, PETRI_PLACES=609, PETRI_TRANSITIONS=590} [2024-10-14 17:11:45,590 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, 22 predicate places. [2024-10-14 17:11:45,590 INFO L471 AbstractCegarLoop]: Abstraction has has 609 places, 590 transitions, 1535 flow [2024-10-14 17:11:45,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 569.375) internal successors, (4555), 8 states have internal predecessors, (4555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:45,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:45,591 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:45,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 17:11:45,592 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:45,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1817558710, now seen corresponding path program 1 times [2024-10-14 17:11:45,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:45,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20484404] [2024-10-14 17:11:45,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:45,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:11:45,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:45,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20484404] [2024-10-14 17:11:45,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20484404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:45,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:45,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 17:11:45,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885480008] [2024-10-14 17:11:45,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:45,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:11:45,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:45,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:11:45,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 17:11:46,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 631 [2024-10-14 17:11:46,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 590 transitions, 1535 flow. Second operand has 8 states, 8 states have (on average 569.5) internal successors, (4556), 8 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:46,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:46,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 631 [2024-10-14 17:11:46,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:47,285 INFO L124 PetriNetUnfolderBase]: 296/3695 cut-off events. [2024-10-14 17:11:47,285 INFO L125 PetriNetUnfolderBase]: For 622/681 co-relation queries the response was YES. [2024-10-14 17:11:47,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5215 conditions, 3695 events. 296/3695 cut-off events. For 622/681 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 30160 event pairs, 127 based on Foata normal form. 0/3423 useless extension candidates. Maximal degree in co-relation 5127. Up to 433 conditions per place. [2024-10-14 17:11:47,326 INFO L140 encePairwiseOnDemand]: 616/631 looper letters, 67 selfloop transitions, 18 changer transitions 0/611 dead transitions. [2024-10-14 17:11:47,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 611 transitions, 1787 flow [2024-10-14 17:11:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:11:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:11:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 6283 transitions. [2024-10-14 17:11:47,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9052009796859242 [2024-10-14 17:11:47,329 INFO L175 Difference]: Start difference. First operand has 609 places, 590 transitions, 1535 flow. Second operand 11 states and 6283 transitions. [2024-10-14 17:11:47,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 611 transitions, 1787 flow [2024-10-14 17:11:47,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 611 transitions, 1783 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:47,342 INFO L231 Difference]: Finished difference. Result has 621 places, 596 transitions, 1626 flow [2024-10-14 17:11:47,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1531, PETRI_DIFFERENCE_MINUEND_PLACES=608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1626, PETRI_PLACES=621, PETRI_TRANSITIONS=596} [2024-10-14 17:11:47,343 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, 34 predicate places. [2024-10-14 17:11:47,343 INFO L471 AbstractCegarLoop]: Abstraction has has 621 places, 596 transitions, 1626 flow [2024-10-14 17:11:47,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 569.5) internal successors, (4556), 8 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:47,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:47,348 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:47,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 17:11:47,348 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:47,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:47,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1086944830, now seen corresponding path program 1 times [2024-10-14 17:11:47,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648119613] [2024-10-14 17:11:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:47,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:11:47,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:47,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648119613] [2024-10-14 17:11:47,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648119613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:47,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:47,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:11:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973818290] [2024-10-14 17:11:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:47,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:11:47,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:11:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:11:48,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 576 out of 631 [2024-10-14 17:11:48,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 596 transitions, 1626 flow. Second operand has 6 states, 6 states have (on average 578.8333333333334) internal successors, (3473), 6 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:48,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:48,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 576 of 631 [2024-10-14 17:11:48,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:49,177 INFO L124 PetriNetUnfolderBase]: 157/3538 cut-off events. [2024-10-14 17:11:49,178 INFO L125 PetriNetUnfolderBase]: For 561/605 co-relation queries the response was YES. [2024-10-14 17:11:49,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4986 conditions, 3538 events. 157/3538 cut-off events. For 561/605 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 25918 event pairs, 22 based on Foata normal form. 12/3338 useless extension candidates. Maximal degree in co-relation 4894. Up to 173 conditions per place. [2024-10-14 17:11:49,228 INFO L140 encePairwiseOnDemand]: 624/631 looper letters, 41 selfloop transitions, 5 changer transitions 0/605 dead transitions. [2024-10-14 17:11:49,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 605 transitions, 1747 flow [2024-10-14 17:11:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:11:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:11:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3501 transitions. [2024-10-14 17:11:49,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9247226624405706 [2024-10-14 17:11:49,232 INFO L175 Difference]: Start difference. First operand has 621 places, 596 transitions, 1626 flow. Second operand 6 states and 3501 transitions. [2024-10-14 17:11:49,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 605 transitions, 1747 flow [2024-10-14 17:11:49,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 605 transitions, 1726 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-14 17:11:49,248 INFO L231 Difference]: Finished difference. Result has 617 places, 594 transitions, 1611 flow [2024-10-14 17:11:49,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1601, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1611, PETRI_PLACES=617, PETRI_TRANSITIONS=594} [2024-10-14 17:11:49,249 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, 30 predicate places. [2024-10-14 17:11:49,249 INFO L471 AbstractCegarLoop]: Abstraction has has 617 places, 594 transitions, 1611 flow [2024-10-14 17:11:49,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 578.8333333333334) internal successors, (3473), 6 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:49,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:49,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:49,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 17:11:49,251 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:49,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:49,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1412690005, now seen corresponding path program 1 times [2024-10-14 17:11:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:49,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283623451] [2024-10-14 17:11:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:11:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283623451] [2024-10-14 17:11:49,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283623451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:49,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:49,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:11:49,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997687421] [2024-10-14 17:11:49,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:49,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:11:49,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:49,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:11:49,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:11:50,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 576 out of 631 [2024-10-14 17:11:50,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 594 transitions, 1611 flow. Second operand has 6 states, 6 states have (on average 579.0) internal successors, (3474), 6 states have internal predecessors, (3474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:50,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:50,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 576 of 631 [2024-10-14 17:11:50,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:51,343 INFO L124 PetriNetUnfolderBase]: 186/3895 cut-off events. [2024-10-14 17:11:51,343 INFO L125 PetriNetUnfolderBase]: For 644/742 co-relation queries the response was YES. [2024-10-14 17:11:51,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5423 conditions, 3895 events. 186/3895 cut-off events. For 644/742 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 30421 event pairs, 30 based on Foata normal form. 8/3651 useless extension candidates. Maximal degree in co-relation 5332. Up to 197 conditions per place. [2024-10-14 17:11:51,407 INFO L140 encePairwiseOnDemand]: 624/631 looper letters, 40 selfloop transitions, 5 changer transitions 0/602 dead transitions. [2024-10-14 17:11:51,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 602 transitions, 1727 flow [2024-10-14 17:11:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:11:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:11:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3500 transitions. [2024-10-14 17:11:51,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9244585314315901 [2024-10-14 17:11:51,411 INFO L175 Difference]: Start difference. First operand has 617 places, 594 transitions, 1611 flow. Second operand 6 states and 3500 transitions. [2024-10-14 17:11:51,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 602 transitions, 1727 flow [2024-10-14 17:11:51,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 602 transitions, 1717 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:11:51,424 INFO L231 Difference]: Finished difference. Result has 615 places, 592 transitions, 1607 flow [2024-10-14 17:11:51,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1597, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1607, PETRI_PLACES=615, PETRI_TRANSITIONS=592} [2024-10-14 17:11:51,425 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, 28 predicate places. [2024-10-14 17:11:51,425 INFO L471 AbstractCegarLoop]: Abstraction has has 615 places, 592 transitions, 1607 flow [2024-10-14 17:11:51,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 579.0) internal successors, (3474), 6 states have internal predecessors, (3474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:51,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:51,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:11:51,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 17:11:51,427 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-14 17:11:51,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:51,427 INFO L85 PathProgramCache]: Analyzing trace with hash -385378515, now seen corresponding path program 1 times [2024-10-14 17:11:51,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:51,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474374023] [2024-10-14 17:11:51,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:51,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:11:51,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:51,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474374023] [2024-10-14 17:11:51,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474374023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:11:51,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:11:51,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:11:51,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227530386] [2024-10-14 17:11:51,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:11:51,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:11:51,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:51,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:11:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:11:51,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 631 [2024-10-14 17:11:51,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 592 transitions, 1607 flow. Second operand has 3 states, 3 states have (on average 592.6666666666666) internal successors, (1778), 3 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:11:51,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:51,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 631 [2024-10-14 17:11:51,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand