./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i -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 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:43:50,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:43:50,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:43:50,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:43:50,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:43:50,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:43:50,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:43:50,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:43:50,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:43:50,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:43:50,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:43:50,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:43:50,739 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:43:50,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:43:50,741 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:43:50,742 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:43:50,742 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:43:50,742 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:43:50,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:43:50,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:43:50,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:43:50,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:43:50,747 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:43:50,748 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:43:50,748 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:43:50,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:43:50,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:43:50,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:43:50,749 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:43:50,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:43:50,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:43:50,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:43:50,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:43:50,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:43:50,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:43:50,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:43:50,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:43:50,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:43:50,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:43:50,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:43:50,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:43:50,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 [2024-11-10 14:43:51,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:43:51,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:43:51,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:43:51,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:43:51,072 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:43:51,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2024-11-10 14:43:52,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:43:52,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:43:52,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2024-11-10 14:43:52,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d55a59c83/05df27d7e622434baf4d7f748e8dce9a/FLAGee306cd99 [2024-11-10 14:43:52,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d55a59c83/05df27d7e622434baf4d7f748e8dce9a [2024-11-10 14:43:52,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:43:52,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:43:52,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:43:52,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:43:52,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:43:52,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:52" (1/1) ... [2024-11-10 14:43:52,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6760be57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:52, skipping insertion in model container [2024-11-10 14:43:52,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:52" (1/1) ... [2024-11-10 14:43:52,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:43:53,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:43:53,374 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:43:53,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:43:53,501 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:43:53,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53 WrapperNode [2024-11-10 14:43:53,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:43:53,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:43:53,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:43:53,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:43:53,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,569 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2024-11-10 14:43:53,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:43:53,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:43:53,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:43:53,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:43:53,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,591 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:43:53,599 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:43:53,599 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:43:53,600 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:43:53,604 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (1/1) ... [2024-11-10 14:43:53,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:43:53,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:43:53,639 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) [2024-11-10 14:43:53,642 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 [2024-11-10 14:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-10 14:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-10 14:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:43:53,687 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:43:53,807 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:43:53,809 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:43:53,993 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:43:53,993 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:43:54,013 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:43:54,013 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:43:54,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:54 BoogieIcfgContainer [2024-11-10 14:43:54,014 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:43:54,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:43:54,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:43:54,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:43:54,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:43:52" (1/3) ... [2024-11-10 14:43:54,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160146d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:54, skipping insertion in model container [2024-11-10 14:43:54,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:53" (2/3) ... [2024-11-10 14:43:54,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160146d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:54, skipping insertion in model container [2024-11-10 14:43:54,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:54" (3/3) ... [2024-11-10 14:43:54,022 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i [2024-11-10 14:43:54,037 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:43:54,037 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 14:43:54,037 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:43:54,084 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:43:54,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 91 transitions, 189 flow [2024-11-10 14:43:54,194 INFO L124 PetriNetUnfolderBase]: 6/127 cut-off events. [2024-11-10 14:43:54,194 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:43:54,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 127 events. 6/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 221 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-11-10 14:43:54,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 91 transitions, 189 flow [2024-11-10 14:43:54,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 189 flow [2024-11-10 14:43:54,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:54,227 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;@80ec3a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:54,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 14:43:54,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:54,253 INFO L124 PetriNetUnfolderBase]: 3/51 cut-off events. [2024-11-10 14:43:54,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:54,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:54,254 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] [2024-11-10 14:43:54,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:54,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:54,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1942065533, now seen corresponding path program 1 times [2024-11-10 14:43:54,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:54,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849742694] [2024-11-10 14:43:54,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:54,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:54,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:54,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:54,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849742694] [2024-11-10 14:43:54,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849742694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:54,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:54,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:54,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347068205] [2024-11-10 14:43:54,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:54,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:43:54,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:54,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:43:54,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:43:54,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 91 [2024-11-10 14:43:54,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 189 flow. Second operand has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:54,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:54,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 91 [2024-11-10 14:43:54,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:54,612 INFO L124 PetriNetUnfolderBase]: 1/122 cut-off events. [2024-11-10 14:43:54,612 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-10 14:43:54,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 1/122 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 7/117 useless extension candidates. Maximal degree in co-relation 2. Up to 5 conditions per place. [2024-11-10 14:43:54,615 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 4 selfloop transitions, 0 changer transitions 1/88 dead transitions. [2024-11-10 14:43:54,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 88 transitions, 191 flow [2024-11-10 14:43:54,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:43:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:43:54,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions. [2024-11-10 14:43:54,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9615384615384616 [2024-11-10 14:43:54,632 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 189 flow. Second operand 2 states and 175 transitions. [2024-11-10 14:43:54,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 88 transitions, 191 flow [2024-11-10 14:43:54,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 88 transitions, 191 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:54,643 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 181 flow [2024-11-10 14:43:54,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=181, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-11-10 14:43:54,652 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 1 predicate places. [2024-11-10 14:43:54,652 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 181 flow [2024-11-10 14:43:54,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:54,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:54,653 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] [2024-11-10 14:43:54,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:43:54,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:54,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2044552419, now seen corresponding path program 1 times [2024-11-10 14:43:54,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:54,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330096815] [2024-11-10 14:43:54,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:54,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:54,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:54,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330096815] [2024-11-10 14:43:54,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330096815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:54,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:54,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:54,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154837335] [2024-11-10 14:43:54,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:54,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:54,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:54,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:54,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2024-11-10 14:43:54,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:54,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:54,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2024-11-10 14:43:54,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:54,861 INFO L124 PetriNetUnfolderBase]: 8/164 cut-off events. [2024-11-10 14:43:54,862 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-10 14:43:54,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 164 events. 8/164 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 408 event pairs, 1 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 195. Up to 16 conditions per place. [2024-11-10 14:43:54,864 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 8 selfloop transitions, 3 changer transitions 1/91 dead transitions. [2024-11-10 14:43:54,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 91 transitions, 213 flow [2024-11-10 14:43:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:54,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:54,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-10 14:43:54,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9267399267399268 [2024-11-10 14:43:54,870 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 181 flow. Second operand 3 states and 253 transitions. [2024-11-10 14:43:54,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 91 transitions, 213 flow [2024-11-10 14:43:54,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:54,874 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 203 flow [2024-11-10 14:43:54,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-11-10 14:43:54,876 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-10 14:43:54,877 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 203 flow [2024-11-10 14:43:54,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:54,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:54,878 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] [2024-11-10 14:43:54,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:43:54,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:54,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:54,880 INFO L85 PathProgramCache]: Analyzing trace with hash -291138583, now seen corresponding path program 1 times [2024-11-10 14:43:54,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:54,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322649873] [2024-11-10 14:43:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:54,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:55,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322649873] [2024-11-10 14:43:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322649873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:55,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504845584] [2024-11-10 14:43:55,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:55,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:55,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:55,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:55,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:55,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2024-11-10 14:43:55,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:55,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:55,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2024-11-10 14:43:55,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:55,774 INFO L124 PetriNetUnfolderBase]: 31/270 cut-off events. [2024-11-10 14:43:55,775 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-10 14:43:55,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 270 events. 31/270 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1203 event pairs, 11 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 392. Up to 62 conditions per place. [2024-11-10 14:43:55,778 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 24 selfloop transitions, 5 changer transitions 0/96 dead transitions. [2024-11-10 14:43:55,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 96 transitions, 275 flow [2024-11-10 14:43:55,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:55,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-10 14:43:55,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-11-10 14:43:55,785 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 203 flow. Second operand 6 states and 426 transitions. [2024-11-10 14:43:55,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 96 transitions, 275 flow [2024-11-10 14:43:55,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 96 transitions, 269 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:55,789 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 205 flow [2024-11-10 14:43:55,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2024-11-10 14:43:55,791 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2024-11-10 14:43:55,791 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 205 flow [2024-11-10 14:43:55,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:55,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:55,793 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] [2024-11-10 14:43:55,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:43:55,793 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:55,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:55,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1654963796, now seen corresponding path program 1 times [2024-11-10 14:43:55,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:55,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697750765] [2024-11-10 14:43:55,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:55,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:55,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:55,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697750765] [2024-11-10 14:43:55,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697750765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:55,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:55,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:55,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138050979] [2024-11-10 14:43:55,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:55,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:43:55,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:55,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:43:55,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:43:56,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2024-11-10 14:43:56,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2024-11-10 14:43:56,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:56,104 INFO L124 PetriNetUnfolderBase]: 17/229 cut-off events. [2024-11-10 14:43:56,105 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:43:56,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 229 events. 17/229 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 773 event pairs, 7 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 318. Up to 49 conditions per place. [2024-11-10 14:43:56,108 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 15 selfloop transitions, 2 changer transitions 5/95 dead transitions. [2024-11-10 14:43:56,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 95 transitions, 263 flow [2024-11-10 14:43:56,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:56,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2024-11-10 14:43:56,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8443223443223443 [2024-11-10 14:43:56,112 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 205 flow. Second operand 6 states and 461 transitions. [2024-11-10 14:43:56,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 95 transitions, 263 flow [2024-11-10 14:43:56,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 95 transitions, 253 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:56,117 INFO L231 Difference]: Finished difference. Result has 100 places, 88 transitions, 213 flow [2024-11-10 14:43:56,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=100, PETRI_TRANSITIONS=88} [2024-11-10 14:43:56,118 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2024-11-10 14:43:56,118 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 88 transitions, 213 flow [2024-11-10 14:43:56,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:56,120 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] [2024-11-10 14:43:56,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:43:56,120 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:56,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash -747789412, now seen corresponding path program 1 times [2024-11-10 14:43:56,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221041155] [2024-11-10 14:43:56,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:56,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:56,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221041155] [2024-11-10 14:43:56,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221041155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:56,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:56,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284469298] [2024-11-10 14:43:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:56,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:56,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:56,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2024-11-10 14:43:56,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 88 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2024-11-10 14:43:56,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:56,207 INFO L124 PetriNetUnfolderBase]: 5/171 cut-off events. [2024-11-10 14:43:56,208 INFO L125 PetriNetUnfolderBase]: For 19/32 co-relation queries the response was YES. [2024-11-10 14:43:56,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 171 events. 5/171 cut-off events. For 19/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 472 event pairs, 3 based on Foata normal form. 1/162 useless extension candidates. Maximal degree in co-relation 239. Up to 25 conditions per place. [2024-11-10 14:43:56,209 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 8 selfloop transitions, 4 changer transitions 3/91 dead transitions. [2024-11-10 14:43:56,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 91 transitions, 249 flow [2024-11-10 14:43:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:56,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2024-11-10 14:43:56,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084249084249084 [2024-11-10 14:43:56,211 INFO L175 Difference]: Start difference. First operand has 100 places, 88 transitions, 213 flow. Second operand 3 states and 248 transitions. [2024-11-10 14:43:56,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 91 transitions, 249 flow [2024-11-10 14:43:56,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 91 transitions, 235 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:56,214 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 221 flow [2024-11-10 14:43:56,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2024-11-10 14:43:56,215 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2024-11-10 14:43:56,215 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 221 flow [2024-11-10 14:43:56,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:56,216 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:56,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:43:56,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-10 14:43:56,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,217 INFO L85 PathProgramCache]: Analyzing trace with hash 317854788, now seen corresponding path program 1 times [2024-11-10 14:43:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248866729] [2024-11-10 14:43:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:56,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:43:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:56,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:43:56,288 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:43:56,289 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-10 14:43:56,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-10 14:43:56,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-10 14:43:56,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-10 14:43:56,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-10 14:43:56,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-10 14:43:56,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:43:56,295 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-10 14:43:56,298 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:43:56,298 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:43:56,319 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:43:56,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions, 234 flow [2024-11-10 14:43:56,343 INFO L124 PetriNetUnfolderBase]: 11/213 cut-off events. [2024-11-10 14:43:56,343 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:43:56,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 213 events. 11/213 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 447 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 129. Up to 8 conditions per place. [2024-11-10 14:43:56,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 109 transitions, 234 flow [2024-11-10 14:43:56,346 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 109 transitions, 234 flow [2024-11-10 14:43:56,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:56,348 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;@80ec3a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:56,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 14:43:56,353 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:56,355 INFO L124 PetriNetUnfolderBase]: 3/51 cut-off events. [2024-11-10 14:43:56,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:56,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:56,355 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] [2024-11-10 14:43:56,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:56,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,356 INFO L85 PathProgramCache]: Analyzing trace with hash 175380003, now seen corresponding path program 1 times [2024-11-10 14:43:56,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917011729] [2024-11-10 14:43:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:56,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:56,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917011729] [2024-11-10 14:43:56,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917011729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:56,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:56,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:56,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177731431] [2024-11-10 14:43:56,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:56,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:43:56,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:56,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:43:56,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:43:56,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 109 [2024-11-10 14:43:56,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 234 flow. Second operand has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 109 [2024-11-10 14:43:56,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:56,427 INFO L124 PetriNetUnfolderBase]: 13/319 cut-off events. [2024-11-10 14:43:56,428 INFO L125 PetriNetUnfolderBase]: For 35/57 co-relation queries the response was YES. [2024-11-10 14:43:56,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 319 events. 13/319 cut-off events. For 35/57 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1056 event pairs, 10 based on Foata normal form. 22/305 useless extension candidates. Maximal degree in co-relation 194. Up to 31 conditions per place. [2024-11-10 14:43:56,432 INFO L140 encePairwiseOnDemand]: 106/109 looper letters, 8 selfloop transitions, 0 changer transitions 1/106 dead transitions. [2024-11-10 14:43:56,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 106 transitions, 244 flow [2024-11-10 14:43:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:43:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:43:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 207 transitions. [2024-11-10 14:43:56,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9495412844036697 [2024-11-10 14:43:56,433 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 234 flow. Second operand 2 states and 207 transitions. [2024-11-10 14:43:56,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 106 transitions, 244 flow [2024-11-10 14:43:56,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 106 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:56,436 INFO L231 Difference]: Finished difference. Result has 110 places, 105 transitions, 226 flow [2024-11-10 14:43:56,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=105} [2024-11-10 14:43:56,437 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 1 predicate places. [2024-11-10 14:43:56,437 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 105 transitions, 226 flow [2024-11-10 14:43:56,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:56,438 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] [2024-11-10 14:43:56,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:43:56,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:56,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1095217699, now seen corresponding path program 1 times [2024-11-10 14:43:56,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116963208] [2024-11-10 14:43:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:56,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:56,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116963208] [2024-11-10 14:43:56,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116963208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:56,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:56,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:56,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865459047] [2024-11-10 14:43:56,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:56,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:56,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:56,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:56,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:56,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 109 [2024-11-10 14:43:56,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 105 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 109 [2024-11-10 14:43:56,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:56,586 INFO L124 PetriNetUnfolderBase]: 119/728 cut-off events. [2024-11-10 14:43:56,586 INFO L125 PetriNetUnfolderBase]: For 58/96 co-relation queries the response was YES. [2024-11-10 14:43:56,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 728 events. 119/728 cut-off events. For 58/96 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4229 event pairs, 50 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 996. Up to 139 conditions per place. [2024-11-10 14:43:56,591 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 16 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-11-10 14:43:56,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 112 transitions, 280 flow [2024-11-10 14:43:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:56,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-10 14:43:56,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174311926605505 [2024-11-10 14:43:56,594 INFO L175 Difference]: Start difference. First operand has 110 places, 105 transitions, 226 flow. Second operand 3 states and 300 transitions. [2024-11-10 14:43:56,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 112 transitions, 280 flow [2024-11-10 14:43:56,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 112 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:56,596 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 256 flow [2024-11-10 14:43:56,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2024-11-10 14:43:56,598 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2024-11-10 14:43:56,598 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 256 flow [2024-11-10 14:43:56,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:56,598 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] [2024-11-10 14:43:56,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:43:56,599 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:56,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash 344256278, now seen corresponding path program 1 times [2024-11-10 14:43:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:56,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106276946] [2024-11-10 14:43:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:56,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:56,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106276946] [2024-11-10 14:43:56,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106276946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:56,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:56,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:56,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687622345] [2024-11-10 14:43:56,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:56,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:56,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:56,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:56,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:56,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2024-11-10 14:43:56,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:56,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:56,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2024-11-10 14:43:56,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:57,198 INFO L124 PetriNetUnfolderBase]: 299/1312 cut-off events. [2024-11-10 14:43:57,198 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-10 14:43:57,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2044 conditions, 1312 events. 299/1312 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9842 event pairs, 58 based on Foata normal form. 0/1187 useless extension candidates. Maximal degree in co-relation 2037. Up to 372 conditions per place. [2024-11-10 14:43:57,209 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 36 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2024-11-10 14:43:57,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 123 transitions, 368 flow [2024-11-10 14:43:57,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:57,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2024-11-10 14:43:57,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7981651376146789 [2024-11-10 14:43:57,211 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 256 flow. Second operand 6 states and 522 transitions. [2024-11-10 14:43:57,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 123 transitions, 368 flow [2024-11-10 14:43:57,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 123 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:57,215 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 256 flow [2024-11-10 14:43:57,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2024-11-10 14:43:57,216 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2024-11-10 14:43:57,216 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 256 flow [2024-11-10 14:43:57,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:57,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:57,217 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] [2024-11-10 14:43:57,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:43:57,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:57,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash -122631884, now seen corresponding path program 1 times [2024-11-10 14:43:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675571619] [2024-11-10 14:43:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:57,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:57,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675571619] [2024-11-10 14:43:57,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675571619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:57,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:57,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:57,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107580911] [2024-11-10 14:43:57,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:57,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:43:57,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:57,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:43:57,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:43:57,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 109 [2024-11-10 14:43:57,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:57,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:57,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 109 [2024-11-10 14:43:57,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:57,588 INFO L124 PetriNetUnfolderBase]: 179/1211 cut-off events. [2024-11-10 14:43:57,588 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-10 14:43:57,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1211 events. 179/1211 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8759 event pairs, 75 based on Foata normal form. 1/1099 useless extension candidates. Maximal degree in co-relation 1688. Up to 300 conditions per place. [2024-11-10 14:43:57,597 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 20 selfloop transitions, 2 changer transitions 5/115 dead transitions. [2024-11-10 14:43:57,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 115 transitions, 326 flow [2024-11-10 14:43:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2024-11-10 14:43:57,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8409785932721713 [2024-11-10 14:43:57,599 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 256 flow. Second operand 6 states and 550 transitions. [2024-11-10 14:43:57,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 115 transitions, 326 flow [2024-11-10 14:43:57,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 115 transitions, 316 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:57,604 INFO L231 Difference]: Finished difference. Result has 119 places, 108 transitions, 268 flow [2024-11-10 14:43:57,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=119, PETRI_TRANSITIONS=108} [2024-11-10 14:43:57,605 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-11-10 14:43:57,605 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 108 transitions, 268 flow [2024-11-10 14:43:57,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:57,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:57,606 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] [2024-11-10 14:43:57,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:43:57,607 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:57,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:57,608 INFO L85 PathProgramCache]: Analyzing trace with hash -798691175, now seen corresponding path program 1 times [2024-11-10 14:43:57,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:57,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207222569] [2024-11-10 14:43:57,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:57,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:57,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:57,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:57,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207222569] [2024-11-10 14:43:57,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207222569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:57,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:57,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:57,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950599526] [2024-11-10 14:43:57,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:57,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:57,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:57,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:57,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:57,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-11-10 14:43:57,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 108 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:57,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:57,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-11-10 14:43:57,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:57,789 INFO L124 PetriNetUnfolderBase]: 165/990 cut-off events. [2024-11-10 14:43:57,790 INFO L125 PetriNetUnfolderBase]: For 194/354 co-relation queries the response was YES. [2024-11-10 14:43:57,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 990 events. 165/990 cut-off events. For 194/354 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7123 event pairs, 88 based on Foata normal form. 3/883 useless extension candidates. Maximal degree in co-relation 1590. Up to 269 conditions per place. [2024-11-10 14:43:57,798 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 19 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2024-11-10 14:43:57,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 117 transitions, 352 flow [2024-11-10 14:43:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:57,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-11-10 14:43:57,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-11-10 14:43:57,800 INFO L175 Difference]: Start difference. First operand has 119 places, 108 transitions, 268 flow. Second operand 3 states and 297 transitions. [2024-11-10 14:43:57,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 117 transitions, 352 flow [2024-11-10 14:43:57,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 117 transitions, 340 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 14:43:57,805 INFO L231 Difference]: Finished difference. Result has 116 places, 113 transitions, 312 flow [2024-11-10 14:43:57,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2024-11-10 14:43:57,807 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 7 predicate places. [2024-11-10 14:43:57,807 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 312 flow [2024-11-10 14:43:57,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:57,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:57,808 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:57,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:43:57,809 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:57,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash 349893187, now seen corresponding path program 1 times [2024-11-10 14:43:57,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:57,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74496934] [2024-11-10 14:43:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:57,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:58,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:43:58,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:58,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74496934] [2024-11-10 14:43:58,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74496934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:58,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:58,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:58,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586705091] [2024-11-10 14:43:58,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:58,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:58,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:58,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:58,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:58,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2024-11-10 14:43:58,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 113 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:58,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:58,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2024-11-10 14:43:58,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:58,555 INFO L124 PetriNetUnfolderBase]: 356/1827 cut-off events. [2024-11-10 14:43:58,555 INFO L125 PetriNetUnfolderBase]: For 307/354 co-relation queries the response was YES. [2024-11-10 14:43:58,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3005 conditions, 1827 events. 356/1827 cut-off events. For 307/354 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 15434 event pairs, 178 based on Foata normal form. 3/1669 useless extension candidates. Maximal degree in co-relation 2996. Up to 360 conditions per place. [2024-11-10 14:43:58,566 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 34 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-11-10 14:43:58,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 128 transitions, 420 flow [2024-11-10 14:43:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2024-11-10 14:43:58,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8134556574923547 [2024-11-10 14:43:58,568 INFO L175 Difference]: Start difference. First operand has 116 places, 113 transitions, 312 flow. Second operand 6 states and 532 transitions. [2024-11-10 14:43:58,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 128 transitions, 420 flow [2024-11-10 14:43:58,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 128 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:58,572 INFO L231 Difference]: Finished difference. Result has 118 places, 112 transitions, 306 flow [2024-11-10 14:43:58,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=118, PETRI_TRANSITIONS=112} [2024-11-10 14:43:58,573 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 9 predicate places. [2024-11-10 14:43:58,573 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 112 transitions, 306 flow [2024-11-10 14:43:58,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:58,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:58,574 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:58,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:43:58,575 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:58,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:58,575 INFO L85 PathProgramCache]: Analyzing trace with hash 751067454, now seen corresponding path program 1 times [2024-11-10 14:43:58,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:58,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699051806] [2024-11-10 14:43:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:58,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:58,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:58,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699051806] [2024-11-10 14:43:58,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699051806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:43:58,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004182254] [2024-11-10 14:43:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:58,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:43:58,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:43:58,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:43:58,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:43:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:58,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:43:58,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:43:58,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:58,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:43:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004182254] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:43:58,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:43:58,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-10 14:43:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307519587] [2024-11-10 14:43:58,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:43:58,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:43:58,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:58,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:43:58,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:43:59,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 109 [2024-11-10 14:43:59,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 112 transitions, 306 flow. Second operand has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 9 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:59,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:59,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 109 [2024-11-10 14:43:59,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:59,376 INFO L124 PetriNetUnfolderBase]: 162/1017 cut-off events. [2024-11-10 14:43:59,376 INFO L125 PetriNetUnfolderBase]: For 135/158 co-relation queries the response was YES. [2024-11-10 14:43:59,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1650 conditions, 1017 events. 162/1017 cut-off events. For 135/158 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6826 event pairs, 52 based on Foata normal form. 0/952 useless extension candidates. Maximal degree in co-relation 1641. Up to 161 conditions per place. [2024-11-10 14:43:59,383 INFO L140 encePairwiseOnDemand]: 99/109 looper letters, 27 selfloop transitions, 9 changer transitions 9/134 dead transitions. [2024-11-10 14:43:59,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 134 transitions, 444 flow [2024-11-10 14:43:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:43:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:43:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 726 transitions. [2024-11-10 14:43:59,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8325688073394495 [2024-11-10 14:43:59,386 INFO L175 Difference]: Start difference. First operand has 118 places, 112 transitions, 306 flow. Second operand 8 states and 726 transitions. [2024-11-10 14:43:59,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 134 transitions, 444 flow [2024-11-10 14:43:59,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 134 transitions, 432 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:59,390 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 329 flow [2024-11-10 14:43:59,390 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=329, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2024-11-10 14:43:59,391 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 14 predicate places. [2024-11-10 14:43:59,391 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 329 flow [2024-11-10 14:43:59,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 9 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:59,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:59,392 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:59,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:43:59,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-10 14:43:59,594 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:59,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:59,595 INFO L85 PathProgramCache]: Analyzing trace with hash -131862119, now seen corresponding path program 1 times [2024-11-10 14:43:59,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:59,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429978218] [2024-11-10 14:43:59,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:59,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:59,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:43:59,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:59,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429978218] [2024-11-10 14:43:59,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429978218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:59,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:59,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:59,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987898222] [2024-11-10 14:43:59,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:59,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:59,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:59,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:59,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:59,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-11-10 14:43:59,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:59,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:59,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-11-10 14:43:59,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:59,763 INFO L124 PetriNetUnfolderBase]: 56/619 cut-off events. [2024-11-10 14:43:59,763 INFO L125 PetriNetUnfolderBase]: For 234/359 co-relation queries the response was YES. [2024-11-10 14:43:59,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 619 events. 56/619 cut-off events. For 234/359 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3710 event pairs, 30 based on Foata normal form. 3/597 useless extension candidates. Maximal degree in co-relation 1043. Up to 119 conditions per place. [2024-11-10 14:43:59,768 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 19 selfloop transitions, 7 changer transitions 1/120 dead transitions. [2024-11-10 14:43:59,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 120 transitions, 406 flow [2024-11-10 14:43:59,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-11-10 14:43:59,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9051987767584098 [2024-11-10 14:43:59,770 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 329 flow. Second operand 3 states and 296 transitions. [2024-11-10 14:43:59,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 120 transitions, 406 flow [2024-11-10 14:43:59,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 120 transitions, 400 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 14:43:59,774 INFO L231 Difference]: Finished difference. Result has 124 places, 116 transitions, 373 flow [2024-11-10 14:43:59,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=373, PETRI_PLACES=124, PETRI_TRANSITIONS=116} [2024-11-10 14:43:59,775 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 15 predicate places. [2024-11-10 14:43:59,775 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 116 transitions, 373 flow [2024-11-10 14:43:59,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:59,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:59,777 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:59,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:43:59,777 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:59,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:59,778 INFO L85 PathProgramCache]: Analyzing trace with hash -583488665, now seen corresponding path program 1 times [2024-11-10 14:43:59,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:59,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718858577] [2024-11-10 14:43:59,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:59,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:43:59,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:59,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718858577] [2024-11-10 14:43:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718858577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:59,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:59,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:43:59,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877679710] [2024-11-10 14:43:59,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:59,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:59,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:59,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:59,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:59,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 109 [2024-11-10 14:43:59,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 373 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:59,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:59,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 109 [2024-11-10 14:43:59,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:59,944 INFO L124 PetriNetUnfolderBase]: 12/389 cut-off events. [2024-11-10 14:43:59,944 INFO L125 PetriNetUnfolderBase]: For 124/139 co-relation queries the response was YES. [2024-11-10 14:43:59,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 389 events. 12/389 cut-off events. For 124/139 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1735 event pairs, 2 based on Foata normal form. 3/388 useless extension candidates. Maximal degree in co-relation 614. Up to 26 conditions per place. [2024-11-10 14:43:59,946 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 8 selfloop transitions, 4 changer transitions 4/117 dead transitions. [2024-11-10 14:43:59,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 117 transitions, 394 flow [2024-11-10 14:43:59,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:59,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2024-11-10 14:43:59,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9327217125382263 [2024-11-10 14:43:59,948 INFO L175 Difference]: Start difference. First operand has 124 places, 116 transitions, 373 flow. Second operand 3 states and 305 transitions. [2024-11-10 14:43:59,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 117 transitions, 394 flow [2024-11-10 14:43:59,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 117 transitions, 382 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:59,951 INFO L231 Difference]: Finished difference. Result has 124 places, 110 transitions, 333 flow [2024-11-10 14:43:59,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=124, PETRI_TRANSITIONS=110} [2024-11-10 14:43:59,952 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 15 predicate places. [2024-11-10 14:43:59,952 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 110 transitions, 333 flow [2024-11-10 14:43:59,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:43:59,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:59,953 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:59,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:43:59,954 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-10 14:43:59,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:59,954 INFO L85 PathProgramCache]: Analyzing trace with hash -499440908, now seen corresponding path program 1 times [2024-11-10 14:43:59,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:59,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823315568] [2024-11-10 14:43:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:59,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:59,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:43:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:59,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:43:59,997 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:43:59,997 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-10 14:43:59,997 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-10 14:43:59,997 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-10 14:43:59,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-10 14:43:59,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-10 14:43:59,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-10 14:43:59,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-10 14:43:59,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:43:59,999 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:00,000 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:44:00,000 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 14:44:00,021 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 14:44:00,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 127 transitions, 281 flow [2024-11-10 14:44:00,053 INFO L124 PetriNetUnfolderBase]: 21/348 cut-off events. [2024-11-10 14:44:00,053 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-10 14:44:00,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 348 events. 21/348 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 949 event pairs, 1 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 221. Up to 16 conditions per place. [2024-11-10 14:44:00,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 127 transitions, 281 flow [2024-11-10 14:44:00,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 127 transitions, 281 flow [2024-11-10 14:44:00,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:44:00,058 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;@80ec3a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:44:00,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 14:44:00,061 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:44:00,061 INFO L124 PetriNetUnfolderBase]: 3/51 cut-off events. [2024-11-10 14:44:00,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:44:00,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:00,062 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] [2024-11-10 14:44:00,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:00,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash 751133699, now seen corresponding path program 1 times [2024-11-10 14:44:00,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:00,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436293348] [2024-11-10 14:44:00,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:00,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:00,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:00,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436293348] [2024-11-10 14:44:00,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436293348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:00,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:00,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:00,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077440364] [2024-11-10 14:44:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:00,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:44:00,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:00,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:44:00,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:44:00,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 127 [2024-11-10 14:44:00,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 281 flow. Second operand has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:00,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:00,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 127 [2024-11-10 14:44:00,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:00,250 INFO L124 PetriNetUnfolderBase]: 98/1078 cut-off events. [2024-11-10 14:44:00,251 INFO L125 PetriNetUnfolderBase]: For 235/366 co-relation queries the response was YES. [2024-11-10 14:44:00,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1349 conditions, 1078 events. 98/1078 cut-off events. For 235/366 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6866 event pairs, 87 based on Foata normal form. 81/1029 useless extension candidates. Maximal degree in co-relation 798. Up to 172 conditions per place. [2024-11-10 14:44:00,261 INFO L140 encePairwiseOnDemand]: 124/127 looper letters, 12 selfloop transitions, 0 changer transitions 1/124 dead transitions. [2024-11-10 14:44:00,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 124 transitions, 299 flow [2024-11-10 14:44:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:44:00,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:44:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 239 transitions. [2024-11-10 14:44:00,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9409448818897638 [2024-11-10 14:44:00,263 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 281 flow. Second operand 2 states and 239 transitions. [2024-11-10 14:44:00,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 124 transitions, 299 flow [2024-11-10 14:44:00,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 124 transitions, 299 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:44:00,266 INFO L231 Difference]: Finished difference. Result has 129 places, 123 transitions, 273 flow [2024-11-10 14:44:00,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=273, PETRI_PLACES=129, PETRI_TRANSITIONS=123} [2024-11-10 14:44:00,267 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 1 predicate places. [2024-11-10 14:44:00,267 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 123 transitions, 273 flow [2024-11-10 14:44:00,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:00,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:00,268 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] [2024-11-10 14:44:00,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:44:00,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:00,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:00,269 INFO L85 PathProgramCache]: Analyzing trace with hash 343742435, now seen corresponding path program 1 times [2024-11-10 14:44:00,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:00,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728019502] [2024-11-10 14:44:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:00,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:00,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:00,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728019502] [2024-11-10 14:44:00,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728019502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:00,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:00,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:00,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517727985] [2024-11-10 14:44:00,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:00,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:00,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:00,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:00,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:00,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2024-11-10 14:44:00,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:00,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:00,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2024-11-10 14:44:00,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:00,799 INFO L124 PetriNetUnfolderBase]: 1071/3995 cut-off events. [2024-11-10 14:44:00,799 INFO L125 PetriNetUnfolderBase]: For 413/650 co-relation queries the response was YES. [2024-11-10 14:44:00,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5911 conditions, 3995 events. 1071/3995 cut-off events. For 413/650 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 36042 event pairs, 542 based on Foata normal form. 0/3540 useless extension candidates. Maximal degree in co-relation 5905. Up to 1110 conditions per place. [2024-11-10 14:44:00,828 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 23 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2024-11-10 14:44:00,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 349 flow [2024-11-10 14:44:00,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2024-11-10 14:44:00,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.910761154855643 [2024-11-10 14:44:00,830 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 273 flow. Second operand 3 states and 347 transitions. [2024-11-10 14:44:00,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 349 flow [2024-11-10 14:44:00,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 133 transitions, 349 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:44:00,833 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 311 flow [2024-11-10 14:44:00,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2024-11-10 14:44:00,834 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 4 predicate places. [2024-11-10 14:44:00,834 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 311 flow [2024-11-10 14:44:00,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:00,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:00,834 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] [2024-11-10 14:44:00,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:44:00,835 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:00,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1476640299, now seen corresponding path program 1 times [2024-11-10 14:44:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:00,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061638863] [2024-11-10 14:44:00,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:00,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:01,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:01,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:01,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061638863] [2024-11-10 14:44:01,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061638863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:01,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:01,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:44:01,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664715867] [2024-11-10 14:44:01,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:01,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:44:01,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:01,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:44:01,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:44:01,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 127 [2024-11-10 14:44:01,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:01,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:01,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 127 [2024-11-10 14:44:01,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:01,988 INFO L124 PetriNetUnfolderBase]: 2135/6905 cut-off events. [2024-11-10 14:44:01,989 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-10 14:44:02,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11138 conditions, 6905 events. 2135/6905 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 68453 event pairs, 440 based on Foata normal form. 0/6111 useless extension candidates. Maximal degree in co-relation 11130. Up to 2247 conditions per place. [2024-11-10 14:44:02,056 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 48 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2024-11-10 14:44:02,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 150 transitions, 463 flow [2024-11-10 14:44:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:02,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:02,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 618 transitions. [2024-11-10 14:44:02,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8110236220472441 [2024-11-10 14:44:02,059 INFO L175 Difference]: Start difference. First operand has 132 places, 127 transitions, 311 flow. Second operand 6 states and 618 transitions. [2024-11-10 14:44:02,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 150 transitions, 463 flow [2024-11-10 14:44:02,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 150 transitions, 453 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:02,068 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 309 flow [2024-11-10 14:44:02,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-11-10 14:44:02,069 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2024-11-10 14:44:02,069 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 309 flow [2024-11-10 14:44:02,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:02,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:02,070 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] [2024-11-10 14:44:02,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:44:02,070 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:02,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:02,072 INFO L85 PathProgramCache]: Analyzing trace with hash -735850796, now seen corresponding path program 1 times [2024-11-10 14:44:02,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:02,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506163914] [2024-11-10 14:44:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:02,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:02,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:02,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506163914] [2024-11-10 14:44:02,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506163914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:02,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:02,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:44:02,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512437742] [2024-11-10 14:44:02,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:02,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:44:02,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:02,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:44:02,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:44:02,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 127 [2024-11-10 14:44:02,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:02,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:02,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 127 [2024-11-10 14:44:02,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:03,116 INFO L124 PetriNetUnfolderBase]: 1315/6229 cut-off events. [2024-11-10 14:44:03,117 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-10 14:44:03,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8856 conditions, 6229 events. 1315/6229 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 62893 event pairs, 754 based on Foata normal form. 1/5474 useless extension candidates. Maximal degree in co-relation 8848. Up to 1711 conditions per place. [2024-11-10 14:44:03,157 INFO L140 encePairwiseOnDemand]: 119/127 looper letters, 24 selfloop transitions, 2 changer transitions 5/134 dead transitions. [2024-11-10 14:44:03,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 134 transitions, 387 flow [2024-11-10 14:44:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:03,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 638 transitions. [2024-11-10 14:44:03,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8372703412073491 [2024-11-10 14:44:03,160 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 309 flow. Second operand 6 states and 638 transitions. [2024-11-10 14:44:03,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 134 transitions, 387 flow [2024-11-10 14:44:03,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 134 transitions, 377 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:44:03,164 INFO L231 Difference]: Finished difference. Result has 138 places, 127 transitions, 321 flow [2024-11-10 14:44:03,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=321, PETRI_PLACES=138, PETRI_TRANSITIONS=127} [2024-11-10 14:44:03,164 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 10 predicate places. [2024-11-10 14:44:03,165 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 127 transitions, 321 flow [2024-11-10 14:44:03,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:03,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:03,165 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] [2024-11-10 14:44:03,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:44:03,166 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:03,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash 381534728, now seen corresponding path program 1 times [2024-11-10 14:44:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339897703] [2024-11-10 14:44:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:03,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:03,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:03,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339897703] [2024-11-10 14:44:03,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339897703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:03,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:03,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:03,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311068978] [2024-11-10 14:44:03,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:03,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:03,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:03,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:03,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:03,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-10 14:44:03,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 127 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:03,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:03,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-10 14:44:03,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:04,256 INFO L124 PetriNetUnfolderBase]: 1762/6938 cut-off events. [2024-11-10 14:44:04,257 INFO L125 PetriNetUnfolderBase]: For 1668/2887 co-relation queries the response was YES. [2024-11-10 14:44:04,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11525 conditions, 6938 events. 1762/6938 cut-off events. For 1668/2887 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 73022 event pairs, 852 based on Foata normal form. 13/6047 useless extension candidates. Maximal degree in co-relation 11513. Up to 2242 conditions per place. [2024-11-10 14:44:04,311 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 29 selfloop transitions, 9 changer transitions 0/142 dead transitions. [2024-11-10 14:44:04,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 142 transitions, 455 flow [2024-11-10 14:44:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-10 14:44:04,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9081364829396326 [2024-11-10 14:44:04,314 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 321 flow. Second operand 3 states and 346 transitions. [2024-11-10 14:44:04,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 142 transitions, 455 flow [2024-11-10 14:44:04,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 142 transitions, 443 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 14:44:04,322 INFO L231 Difference]: Finished difference. Result has 135 places, 134 transitions, 385 flow [2024-11-10 14:44:04,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=135, PETRI_TRANSITIONS=134} [2024-11-10 14:44:04,323 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 7 predicate places. [2024-11-10 14:44:04,324 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 134 transitions, 385 flow [2024-11-10 14:44:04,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:04,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:04,324 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:04,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 14:44:04,325 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:04,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:04,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1246862035, now seen corresponding path program 1 times [2024-11-10 14:44:04,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:04,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825812155] [2024-11-10 14:44:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:04,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:44:04,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:04,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825812155] [2024-11-10 14:44:04,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825812155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:04,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:04,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:44:04,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695157731] [2024-11-10 14:44:04,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:04,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:44:04,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:04,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:44:04,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:44:04,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 127 [2024-11-10 14:44:04,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 134 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:04,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:04,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 127 [2024-11-10 14:44:04,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:06,100 INFO L124 PetriNetUnfolderBase]: 2856/10268 cut-off events. [2024-11-10 14:44:06,100 INFO L125 PetriNetUnfolderBase]: For 1680/2231 co-relation queries the response was YES. [2024-11-10 14:44:06,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17401 conditions, 10268 events. 2856/10268 cut-off events. For 1680/2231 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 112941 event pairs, 1389 based on Foata normal form. 17/9124 useless extension candidates. Maximal degree in co-relation 17391. Up to 2139 conditions per place. [2024-11-10 14:44:06,181 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 46 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-10 14:44:06,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 157 transitions, 533 flow [2024-11-10 14:44:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:06,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 628 transitions. [2024-11-10 14:44:06,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8241469816272966 [2024-11-10 14:44:06,185 INFO L175 Difference]: Start difference. First operand has 135 places, 134 transitions, 385 flow. Second operand 6 states and 628 transitions. [2024-11-10 14:44:06,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 157 transitions, 533 flow [2024-11-10 14:44:06,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 157 transitions, 515 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:06,198 INFO L231 Difference]: Finished difference. Result has 137 places, 133 transitions, 375 flow [2024-11-10 14:44:06,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=375, PETRI_PLACES=137, PETRI_TRANSITIONS=133} [2024-11-10 14:44:06,199 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 9 predicate places. [2024-11-10 14:44:06,199 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 133 transitions, 375 flow [2024-11-10 14:44:06,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:06,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:06,200 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:06,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 14:44:06,200 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:06,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:06,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1653651224, now seen corresponding path program 1 times [2024-11-10 14:44:06,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:06,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320805363] [2024-11-10 14:44:06,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:06,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:06,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:06,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320805363] [2024-11-10 14:44:06,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320805363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:44:06,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678887378] [2024-11-10 14:44:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:06,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:06,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:44:06,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:44:06,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:44:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:06,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:44:06,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:44:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:06,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:44:06,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:06,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678887378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:44:06,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:44:06,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-10 14:44:06,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644258982] [2024-11-10 14:44:06,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:44:06,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:44:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:44:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:44:06,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 127 [2024-11-10 14:44:06,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 133 transitions, 375 flow. Second operand has 9 states, 9 states have (on average 101.22222222222223) internal successors, (911), 9 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:06,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:06,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 127 [2024-11-10 14:44:06,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:07,693 INFO L124 PetriNetUnfolderBase]: 1487/6312 cut-off events. [2024-11-10 14:44:07,694 INFO L125 PetriNetUnfolderBase]: For 970/1184 co-relation queries the response was YES. [2024-11-10 14:44:07,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10666 conditions, 6312 events. 1487/6312 cut-off events. For 970/1184 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 63796 event pairs, 613 based on Foata normal form. 1/5735 useless extension candidates. Maximal degree in co-relation 10656. Up to 1102 conditions per place. [2024-11-10 14:44:07,727 INFO L140 encePairwiseOnDemand]: 117/127 looper letters, 48 selfloop transitions, 10 changer transitions 0/165 dead transitions. [2024-11-10 14:44:07,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 165 transitions, 566 flow [2024-11-10 14:44:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:44:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:44:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 851 transitions. [2024-11-10 14:44:07,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375984251968503 [2024-11-10 14:44:07,730 INFO L175 Difference]: Start difference. First operand has 137 places, 133 transitions, 375 flow. Second operand 8 states and 851 transitions. [2024-11-10 14:44:07,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 165 transitions, 566 flow [2024-11-10 14:44:07,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 165 transitions, 554 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:44:07,736 INFO L231 Difference]: Finished difference. Result has 142 places, 136 transitions, 409 flow [2024-11-10 14:44:07,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=409, PETRI_PLACES=142, PETRI_TRANSITIONS=136} [2024-11-10 14:44:07,737 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 14 predicate places. [2024-11-10 14:44:07,737 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 136 transitions, 409 flow [2024-11-10 14:44:07,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 101.22222222222223) internal successors, (911), 9 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:07,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:07,738 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:07,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 14:44:07,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-10 14:44:07,943 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:07,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1671332360, now seen corresponding path program 1 times [2024-11-10 14:44:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:07,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210702781] [2024-11-10 14:44:07,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:07,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:07,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:44:07,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:07,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210702781] [2024-11-10 14:44:07,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210702781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:07,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:07,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:07,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809701632] [2024-11-10 14:44:07,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:07,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:07,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:07,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:07,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:07,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-10 14:44:07,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 136 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:07,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:07,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-10 14:44:07,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:08,606 INFO L124 PetriNetUnfolderBase]: 1088/4830 cut-off events. [2024-11-10 14:44:08,607 INFO L125 PetriNetUnfolderBase]: For 2539/3075 co-relation queries the response was YES. [2024-11-10 14:44:08,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9223 conditions, 4830 events. 1088/4830 cut-off events. For 2539/3075 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 50302 event pairs, 589 based on Foata normal form. 7/4467 useless extension candidates. Maximal degree in co-relation 9210. Up to 1450 conditions per place. [2024-11-10 14:44:08,641 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 31 selfloop transitions, 13 changer transitions 0/152 dead transitions. [2024-11-10 14:44:08,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 570 flow [2024-11-10 14:44:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2024-11-10 14:44:08,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905511811023622 [2024-11-10 14:44:08,643 INFO L175 Difference]: Start difference. First operand has 142 places, 136 transitions, 409 flow. Second operand 3 states and 345 transitions. [2024-11-10 14:44:08,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 570 flow [2024-11-10 14:44:08,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 564 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 14:44:08,650 INFO L231 Difference]: Finished difference. Result has 143 places, 145 transitions, 521 flow [2024-11-10 14:44:08,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=143, PETRI_TRANSITIONS=145} [2024-11-10 14:44:08,651 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 15 predicate places. [2024-11-10 14:44:08,651 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 145 transitions, 521 flow [2024-11-10 14:44:08,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:08,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:08,652 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:08,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 14:44:08,652 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:08,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:08,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1811440524, now seen corresponding path program 1 times [2024-11-10 14:44:08,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:08,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610302986] [2024-11-10 14:44:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:08,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:44:08,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:08,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610302986] [2024-11-10 14:44:08,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610302986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:08,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:08,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:44:08,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642543037] [2024-11-10 14:44:08,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:08,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:08,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:08,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 127 [2024-11-10 14:44:08,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 145 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:08,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:08,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 127 [2024-11-10 14:44:08,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:09,036 INFO L124 PetriNetUnfolderBase]: 117/1555 cut-off events. [2024-11-10 14:44:09,037 INFO L125 PetriNetUnfolderBase]: For 753/843 co-relation queries the response was YES. [2024-11-10 14:44:09,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2683 conditions, 1555 events. 117/1555 cut-off events. For 753/843 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12695 event pairs, 43 based on Foata normal form. 21/1520 useless extension candidates. Maximal degree in co-relation 2669. Up to 144 conditions per place. [2024-11-10 14:44:09,046 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 12 selfloop transitions, 6 changer transitions 0/140 dead transitions. [2024-11-10 14:44:09,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 140 transitions, 494 flow [2024-11-10 14:44:09,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:09,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-11-10 14:44:09,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9291338582677166 [2024-11-10 14:44:09,049 INFO L175 Difference]: Start difference. First operand has 143 places, 145 transitions, 521 flow. Second operand 3 states and 354 transitions. [2024-11-10 14:44:09,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 140 transitions, 494 flow [2024-11-10 14:44:09,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 140 transitions, 480 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:09,056 INFO L231 Difference]: Finished difference. Result has 143 places, 135 transitions, 425 flow [2024-11-10 14:44:09,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=425, PETRI_PLACES=143, PETRI_TRANSITIONS=135} [2024-11-10 14:44:09,056 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 15 predicate places. [2024-11-10 14:44:09,057 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 135 transitions, 425 flow [2024-11-10 14:44:09,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:09,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:09,058 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:09,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 14:44:09,058 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:09,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:09,059 INFO L85 PathProgramCache]: Analyzing trace with hash 189377287, now seen corresponding path program 1 times [2024-11-10 14:44:09,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:09,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874838336] [2024-11-10 14:44:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 14:44:09,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:09,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874838336] [2024-11-10 14:44:09,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874838336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:09,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:09,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:09,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629838269] [2024-11-10 14:44:09,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:09,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:09,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:09,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:09,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:09,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-10 14:44:09,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:09,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:09,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-10 14:44:09,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:09,422 INFO L124 PetriNetUnfolderBase]: 203/1848 cut-off events. [2024-11-10 14:44:09,423 INFO L125 PetriNetUnfolderBase]: For 1333/1398 co-relation queries the response was YES. [2024-11-10 14:44:09,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3560 conditions, 1848 events. 203/1848 cut-off events. For 1333/1398 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 16064 event pairs, 134 based on Foata normal form. 3/1759 useless extension candidates. Maximal degree in co-relation 3546. Up to 435 conditions per place. [2024-11-10 14:44:09,433 INFO L140 encePairwiseOnDemand]: 122/127 looper letters, 25 selfloop transitions, 5 changer transitions 0/140 dead transitions. [2024-11-10 14:44:09,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 140 transitions, 507 flow [2024-11-10 14:44:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-10 14:44:09,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8871391076115486 [2024-11-10 14:44:09,437 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 425 flow. Second operand 3 states and 338 transitions. [2024-11-10 14:44:09,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 140 transitions, 507 flow [2024-11-10 14:44:09,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 140 transitions, 501 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:44:09,442 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 459 flow [2024-11-10 14:44:09,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=459, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-11-10 14:44:09,443 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 18 predicate places. [2024-11-10 14:44:09,443 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 459 flow [2024-11-10 14:44:09,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:09,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:09,444 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:09,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 14:44:09,444 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:44:09,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash -428949435, now seen corresponding path program 1 times [2024-11-10 14:44:09,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:09,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917421283] [2024-11-10 14:44:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:09,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:44:09,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:44:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:44:09,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:44:09,502 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:44:09,502 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-10 14:44:09,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-10 14:44:09,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-10 14:44:09,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-10 14:44:09,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-10 14:44:09,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-10 14:44:09,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-10 14:44:09,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-10 14:44:09,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 14:44:09,505 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:09,506 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:44:09,506 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-10 14:44:09,529 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 14:44:09,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 145 transitions, 330 flow [2024-11-10 14:44:09,610 INFO L124 PetriNetUnfolderBase]: 43/583 cut-off events. [2024-11-10 14:44:09,610 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-10 14:44:09,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 583 events. 43/583 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2064 event pairs, 6 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 368. Up to 32 conditions per place. [2024-11-10 14:44:09,613 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 145 transitions, 330 flow [2024-11-10 14:44:09,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 145 transitions, 330 flow [2024-11-10 14:44:09,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:44:09,620 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;@80ec3a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:44:09,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 14:44:09,624 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:44:09,624 INFO L124 PetriNetUnfolderBase]: 3/51 cut-off events. [2024-11-10 14:44:09,624 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:44:09,624 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:09,624 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] [2024-11-10 14:44:09,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:09,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:09,625 INFO L85 PathProgramCache]: Analyzing trace with hash -214804445, now seen corresponding path program 1 times [2024-11-10 14:44:09,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:09,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110644856] [2024-11-10 14:44:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:09,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:09,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:09,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110644856] [2024-11-10 14:44:09,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110644856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:09,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:09,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:09,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794718396] [2024-11-10 14:44:09,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:09,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:44:09,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:09,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:44:09,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:44:09,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 145 [2024-11-10 14:44:09,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 330 flow. Second operand has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:09,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:09,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 145 [2024-11-10 14:44:09,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:10,165 INFO L124 PetriNetUnfolderBase]: 585/4150 cut-off events. [2024-11-10 14:44:10,166 INFO L125 PetriNetUnfolderBase]: For 1169/1716 co-relation queries the response was YES. [2024-11-10 14:44:10,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5470 conditions, 4150 events. 585/4150 cut-off events. For 1169/1716 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 39161 event pairs, 536 based on Foata normal form. 322/3977 useless extension candidates. Maximal degree in co-relation 3463. Up to 877 conditions per place. [2024-11-10 14:44:10,208 INFO L140 encePairwiseOnDemand]: 142/145 looper letters, 16 selfloop transitions, 0 changer transitions 1/142 dead transitions. [2024-11-10 14:44:10,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 142 transitions, 356 flow [2024-11-10 14:44:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:44:10,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:44:10,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 271 transitions. [2024-11-10 14:44:10,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9344827586206896 [2024-11-10 14:44:10,212 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 330 flow. Second operand 2 states and 271 transitions. [2024-11-10 14:44:10,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 142 transitions, 356 flow [2024-11-10 14:44:10,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 142 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:44:10,215 INFO L231 Difference]: Finished difference. Result has 148 places, 141 transitions, 322 flow [2024-11-10 14:44:10,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=322, PETRI_PLACES=148, PETRI_TRANSITIONS=141} [2024-11-10 14:44:10,216 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2024-11-10 14:44:10,216 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 141 transitions, 322 flow [2024-11-10 14:44:10,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:10,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:10,217 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] [2024-11-10 14:44:10,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 14:44:10,217 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:10,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash -209873373, now seen corresponding path program 1 times [2024-11-10 14:44:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:10,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814788368] [2024-11-10 14:44:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:10,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:10,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814788368] [2024-11-10 14:44:10,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814788368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:10,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:10,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:10,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415003333] [2024-11-10 14:44:10,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:10,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:10,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:10,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:10,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 145 [2024-11-10 14:44:10,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 141 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:10,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:10,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 145 [2024-11-10 14:44:10,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:13,002 INFO L124 PetriNetUnfolderBase]: 7859/23384 cut-off events. [2024-11-10 14:44:13,002 INFO L125 PetriNetUnfolderBase]: For 2494/3527 co-relation queries the response was YES. [2024-11-10 14:44:13,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35735 conditions, 23384 events. 7859/23384 cut-off events. For 2494/3527 co-relation queries the response was YES. Maximal size of possible extension queue 795. Compared 269456 event pairs, 4292 based on Foata normal form. 0/21120 useless extension candidates. Maximal degree in co-relation 35728. Up to 7653 conditions per place. [2024-11-10 14:44:13,243 INFO L140 encePairwiseOnDemand]: 138/145 looper letters, 30 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-11-10 14:44:13,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 154 transitions, 420 flow [2024-11-10 14:44:13,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:13,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:13,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2024-11-10 14:44:13,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9057471264367816 [2024-11-10 14:44:13,245 INFO L175 Difference]: Start difference. First operand has 148 places, 141 transitions, 322 flow. Second operand 3 states and 394 transitions. [2024-11-10 14:44:13,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 154 transitions, 420 flow [2024-11-10 14:44:13,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 154 transitions, 420 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:44:13,250 INFO L231 Difference]: Finished difference. Result has 151 places, 146 transitions, 368 flow [2024-11-10 14:44:13,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=151, PETRI_TRANSITIONS=146} [2024-11-10 14:44:13,251 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 4 predicate places. [2024-11-10 14:44:13,251 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 146 transitions, 368 flow [2024-11-10 14:44:13,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:13,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:13,251 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] [2024-11-10 14:44:13,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-10 14:44:13,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:13,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1458861018, now seen corresponding path program 1 times [2024-11-10 14:44:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:13,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109549688] [2024-11-10 14:44:13,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:13,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:13,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:13,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109549688] [2024-11-10 14:44:13,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109549688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:13,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:13,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:44:13,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672832607] [2024-11-10 14:44:13,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:13,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:44:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:13,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:44:13,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:44:13,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 145 [2024-11-10 14:44:13,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 146 transitions, 368 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:13,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:13,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 145 [2024-11-10 14:44:13,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:18,347 INFO L124 PetriNetUnfolderBase]: 13638/36434 cut-off events. [2024-11-10 14:44:18,347 INFO L125 PetriNetUnfolderBase]: For 3211/3211 co-relation queries the response was YES. [2024-11-10 14:44:18,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60563 conditions, 36434 events. 13638/36434 cut-off events. For 3211/3211 co-relation queries the response was YES. Maximal size of possible extension queue 1446. Compared 436068 event pairs, 2826 based on Foata normal form. 0/31780 useless extension candidates. Maximal degree in co-relation 60554. Up to 13302 conditions per place. [2024-11-10 14:44:18,663 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 60 selfloop transitions, 5 changer transitions 0/177 dead transitions. [2024-11-10 14:44:18,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 177 transitions, 560 flow [2024-11-10 14:44:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2024-11-10 14:44:18,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8206896551724138 [2024-11-10 14:44:18,667 INFO L175 Difference]: Start difference. First operand has 151 places, 146 transitions, 368 flow. Second operand 6 states and 714 transitions. [2024-11-10 14:44:18,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 177 transitions, 560 flow [2024-11-10 14:44:18,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 177 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:18,721 INFO L231 Difference]: Finished difference. Result has 153 places, 145 transitions, 364 flow [2024-11-10 14:44:18,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=153, PETRI_TRANSITIONS=145} [2024-11-10 14:44:18,722 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 6 predicate places. [2024-11-10 14:44:18,722 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 145 transitions, 364 flow [2024-11-10 14:44:18,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:18,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:18,722 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] [2024-11-10 14:44:18,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 14:44:18,723 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:18,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:18,723 INFO L85 PathProgramCache]: Analyzing trace with hash -184692940, now seen corresponding path program 1 times [2024-11-10 14:44:18,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:18,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246296451] [2024-11-10 14:44:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:18,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:18,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:18,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246296451] [2024-11-10 14:44:18,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246296451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:18,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:18,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:44:18,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994704498] [2024-11-10 14:44:18,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:18,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:44:18,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:18,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:44:18,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:44:18,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 145 [2024-11-10 14:44:18,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 145 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:18,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:18,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 145 [2024-11-10 14:44:18,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:22,397 INFO L124 PetriNetUnfolderBase]: 8788/32788 cut-off events. [2024-11-10 14:44:22,397 INFO L125 PetriNetUnfolderBase]: For 1398/1398 co-relation queries the response was YES. [2024-11-10 14:44:22,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47866 conditions, 32788 events. 8788/32788 cut-off events. For 1398/1398 co-relation queries the response was YES. Maximal size of possible extension queue 854. Compared 418334 event pairs, 5700 based on Foata normal form. 1/28288 useless extension candidates. Maximal degree in co-relation 47857. Up to 9905 conditions per place. [2024-11-10 14:44:22,654 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 28 selfloop transitions, 2 changer transitions 5/153 dead transitions. [2024-11-10 14:44:22,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 153 transitions, 450 flow [2024-11-10 14:44:22,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-11-10 14:44:22,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8344827586206897 [2024-11-10 14:44:22,656 INFO L175 Difference]: Start difference. First operand has 153 places, 145 transitions, 364 flow. Second operand 6 states and 726 transitions. [2024-11-10 14:44:22,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 153 transitions, 450 flow [2024-11-10 14:44:22,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 153 transitions, 440 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:44:22,661 INFO L231 Difference]: Finished difference. Result has 157 places, 146 transitions, 376 flow [2024-11-10 14:44:22,661 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=157, PETRI_TRANSITIONS=146} [2024-11-10 14:44:22,662 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2024-11-10 14:44:22,662 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 146 transitions, 376 flow [2024-11-10 14:44:22,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:22,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:22,663 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] [2024-11-10 14:44:22,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-10 14:44:22,663 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:22,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:22,665 INFO L85 PathProgramCache]: Analyzing trace with hash -978042983, now seen corresponding path program 1 times [2024-11-10 14:44:22,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:22,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597036461] [2024-11-10 14:44:22,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:22,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:22,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:22,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:22,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597036461] [2024-11-10 14:44:22,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597036461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:22,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:22,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:22,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288536873] [2024-11-10 14:44:22,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:22,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:22,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:22,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:22,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:22,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-10 14:44:22,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 146 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:22,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:22,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-10 14:44:22,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:28,021 INFO L124 PetriNetUnfolderBase]: 13764/42891 cut-off events. [2024-11-10 14:44:28,022 INFO L125 PetriNetUnfolderBase]: For 11160/16780 co-relation queries the response was YES. [2024-11-10 14:44:28,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73769 conditions, 42891 events. 13764/42891 cut-off events. For 11160/16780 co-relation queries the response was YES. Maximal size of possible extension queue 1517. Compared 557704 event pairs, 7220 based on Foata normal form. 42/37752 useless extension candidates. Maximal degree in co-relation 73756. Up to 15978 conditions per place. [2024-11-10 14:44:28,344 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 39 selfloop transitions, 11 changer transitions 0/167 dead transitions. [2024-11-10 14:44:28,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 167 transitions, 562 flow [2024-11-10 14:44:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:44:28,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:44:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-10 14:44:28,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2024-11-10 14:44:28,346 INFO L175 Difference]: Start difference. First operand has 157 places, 146 transitions, 376 flow. Second operand 3 states and 395 transitions. [2024-11-10 14:44:28,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 167 transitions, 562 flow [2024-11-10 14:44:28,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 167 transitions, 550 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 14:44:28,404 INFO L231 Difference]: Finished difference. Result has 154 places, 155 transitions, 460 flow [2024-11-10 14:44:28,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=154, PETRI_TRANSITIONS=155} [2024-11-10 14:44:28,405 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2024-11-10 14:44:28,405 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 155 transitions, 460 flow [2024-11-10 14:44:28,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:28,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:28,405 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:28,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-10 14:44:28,406 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:28,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:28,406 INFO L85 PathProgramCache]: Analyzing trace with hash 804119139, now seen corresponding path program 1 times [2024-11-10 14:44:28,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:28,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311233221] [2024-11-10 14:44:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:28,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:28,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:44:28,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:28,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311233221] [2024-11-10 14:44:28,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311233221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:28,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:28,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:44:28,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952276352] [2024-11-10 14:44:28,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:28,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:44:28,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:28,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:44:28,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:44:28,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 145 [2024-11-10 14:44:28,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 155 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:28,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:28,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 145 [2024-11-10 14:44:28,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:34,149 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([577] L1023-3-->L1023-2: Formula: (= |v_#race~data~0_6| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_6|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][153], [111#L1024-3true, 42#L1023-2true, 122#L1038-1true, Black: 165#(= |ULTIMATE.start_main_~i~0#1| 0), 174#true, 150#true, 146#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 147#true, 179#true, 96#L1022true, Black: 154#(= |#race~data~0| 0), 144#true, 142#true]) [2024-11-10 14:44:34,149 INFO L294 olderBase$Statistics]: this new event has 155 ancestors and is cut-off event [2024-11-10 14:44:34,150 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-10 14:44:34,150 INFO L297 olderBase$Statistics]: existing Event has 155 ancestors and is cut-off event [2024-11-10 14:44:34,150 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-10 14:44:34,264 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([625] L1023-3-->L1023-2: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][184], [42#L1023-2true, 14#L1023-1true, 122#L1038-1true, 148#true, Black: 165#(= |ULTIMATE.start_main_~i~0#1| 0), 174#true, 150#true, 146#true, 17#L1023-2true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 179#true, 143#true, Black: 154#(= |#race~data~0| 0), 142#true]) [2024-11-10 14:44:34,264 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is cut-off event [2024-11-10 14:44:34,265 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-10 14:44:34,265 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-10 14:44:34,265 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-10 14:44:34,322 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([577] L1023-3-->L1023-2: Formula: (= |v_#race~data~0_6| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_6|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][153], [42#L1023-2true, 122#L1038-1true, Black: 165#(= |ULTIMATE.start_main_~i~0#1| 0), 174#true, 150#true, 146#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 147#true, 179#true, 21#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 154#(= |#race~data~0| 0), 144#true, 92#L1023-2true, 142#true]) [2024-11-10 14:44:34,322 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is cut-off event [2024-11-10 14:44:34,322 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-10 14:44:34,322 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-10 14:44:34,322 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-10 14:44:35,005 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([625] L1023-3-->L1023-2: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][179], [111#L1024-3true, 42#L1023-2true, 122#L1038-1true, 148#true, Black: 165#(= |ULTIMATE.start_main_~i~0#1| 0), 174#true, 150#true, 146#true, 17#L1023-2true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 179#true, 143#true, Black: 154#(= |#race~data~0| 0), 142#true]) [2024-11-10 14:44:35,005 INFO L294 olderBase$Statistics]: this new event has 161 ancestors and is not cut-off event [2024-11-10 14:44:35,005 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-10 14:44:35,005 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-10 14:44:35,005 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-10 14:44:35,415 INFO L124 PetriNetUnfolderBase]: 19867/57631 cut-off events. [2024-11-10 14:44:35,415 INFO L125 PetriNetUnfolderBase]: For 9203/12725 co-relation queries the response was YES. [2024-11-10 14:44:35,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100421 conditions, 57631 events. 19867/57631 cut-off events. For 9203/12725 co-relation queries the response was YES. Maximal size of possible extension queue 1959. Compared 756111 event pairs, 9561 based on Foata normal form. 157/50585 useless extension candidates. Maximal degree in co-relation 100410. Up to 12590 conditions per place. [2024-11-10 14:44:35,947 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 58 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2024-11-10 14:44:35,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 186 transitions, 648 flow [2024-11-10 14:44:35,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:44:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:44:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 724 transitions. [2024-11-10 14:44:35,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.832183908045977 [2024-11-10 14:44:35,949 INFO L175 Difference]: Start difference. First operand has 154 places, 155 transitions, 460 flow. Second operand 6 states and 724 transitions. [2024-11-10 14:44:35,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 186 transitions, 648 flow [2024-11-10 14:44:36,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 186 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:44:36,245 INFO L231 Difference]: Finished difference. Result has 156 places, 154 transitions, 446 flow [2024-11-10 14:44:36,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=156, PETRI_TRANSITIONS=154} [2024-11-10 14:44:36,246 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 9 predicate places. [2024-11-10 14:44:36,246 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 154 transitions, 446 flow [2024-11-10 14:44:36,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:36,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:36,247 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:36,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-10 14:44:36,247 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:36,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:36,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1208355048, now seen corresponding path program 1 times [2024-11-10 14:44:36,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:36,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174148337] [2024-11-10 14:44:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:36,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:36,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:36,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:36,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174148337] [2024-11-10 14:44:36,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174148337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:44:36,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672800643] [2024-11-10 14:44:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:36,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:36,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:44:36,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:44:36,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:44:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:36,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:44:36,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:44:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:36,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:44:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:36,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672800643] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:44:36,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:44:36,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-10 14:44:36,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898067395] [2024-11-10 14:44:36,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:44:36,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:44:36,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:36,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:44:36,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:44:36,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 145 [2024-11-10 14:44:36,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 154 transitions, 446 flow. Second operand has 9 states, 9 states have (on average 115.22222222222223) internal successors, (1037), 9 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:36,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:36,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 145 [2024-11-10 14:44:36,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:44:39,835 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([625] L1023-3-->L1023-2: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][192], [42#L1023-2true, 189#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 122#L1038-1true, 14#L1023-1true, 148#true, Black: 165#(= |ULTIMATE.start_main_~i~0#1| 0), 150#true, 146#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 17#L1023-2true, 179#true, 143#true, Black: 154#(= |#race~data~0| 0), 142#true]) [2024-11-10 14:44:39,835 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is cut-off event [2024-11-10 14:44:39,835 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-10 14:44:39,835 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-10 14:44:39,835 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-10 14:44:40,586 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([625] L1023-3-->L1023-2: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][190], [111#L1024-3true, 42#L1023-2true, 189#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 122#L1038-1true, 148#true, Black: 165#(= |ULTIMATE.start_main_~i~0#1| 0), 150#true, 146#true, 17#L1023-2true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 179#true, 143#true, Black: 154#(= |#race~data~0| 0), 142#true]) [2024-11-10 14:44:40,586 INFO L294 olderBase$Statistics]: this new event has 161 ancestors and is not cut-off event [2024-11-10 14:44:40,586 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-10 14:44:40,587 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-10 14:44:40,587 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-10 14:44:40,988 INFO L124 PetriNetUnfolderBase]: 11506/38009 cut-off events. [2024-11-10 14:44:40,988 INFO L125 PetriNetUnfolderBase]: For 6259/8002 co-relation queries the response was YES. [2024-11-10 14:44:41,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65753 conditions, 38009 events. 11506/38009 cut-off events. For 6259/8002 co-relation queries the response was YES. Maximal size of possible extension queue 1127. Compared 487021 event pairs, 4939 based on Foata normal form. 15/33760 useless extension candidates. Maximal degree in co-relation 65742. Up to 6991 conditions per place. [2024-11-10 14:44:41,268 INFO L140 encePairwiseOnDemand]: 135/145 looper letters, 61 selfloop transitions, 10 changer transitions 0/195 dead transitions. [2024-11-10 14:44:41,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 195 transitions, 684 flow [2024-11-10 14:44:41,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:44:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:44:41,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 976 transitions. [2024-11-10 14:44:41,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8413793103448276 [2024-11-10 14:44:41,270 INFO L175 Difference]: Start difference. First operand has 156 places, 154 transitions, 446 flow. Second operand 8 states and 976 transitions. [2024-11-10 14:44:41,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 195 transitions, 684 flow [2024-11-10 14:44:41,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 195 transitions, 672 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:44:41,292 INFO L231 Difference]: Finished difference. Result has 161 places, 157 transitions, 480 flow [2024-11-10 14:44:41,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=480, PETRI_PLACES=161, PETRI_TRANSITIONS=157} [2024-11-10 14:44:41,293 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2024-11-10 14:44:41,293 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 157 transitions, 480 flow [2024-11-10 14:44:41,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.22222222222223) internal successors, (1037), 9 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:41,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:44:41,294 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:44:41,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 14:44:41,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:44:41,495 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:44:41,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:44:41,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1189263993, now seen corresponding path program 1 times [2024-11-10 14:44:41,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:44:41,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398061084] [2024-11-10 14:44:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:44:41,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:44:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:44:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:44:41,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:44:41,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398061084] [2024-11-10 14:44:41,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398061084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:44:41,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:44:41,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:44:41,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758790081] [2024-11-10 14:44:41,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:44:41,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:44:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:41,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:44:41,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:44:41,546 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-10 14:44:41,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 157 transitions, 480 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:44:41,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:44:41,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-10 14:44:41,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand