./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d 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-const-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 860528881155a718438c0581485d42cc235131c30c9ba38f0a976304f206e75d --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:06:27,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:06:27,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:06:27,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:06:27,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:06:27,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:06:27,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:06:27,736 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:06:27,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:06:27,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:06:27,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:06:27,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:06:27,740 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:06:27,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:06:27,741 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:06:27,744 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:06:27,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:06:27,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:06:27,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:06:27,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:06:27,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:06:27,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:06:27,746 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:06:27,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:06:27,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:06:27,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:06:27,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:06:27,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:06:27,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:06:27,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:06:27,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:06:27,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:06:27,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:06:27,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:06:27,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:06:27,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:06:27,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:06:27,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:06:27,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:06:27,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:06:27,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:06:27,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860528881155a718438c0581485d42cc235131c30c9ba38f0a976304f206e75d [2024-11-09 07:06:28,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:06:28,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:06:28,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:06:28,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:06:28,080 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:06:28,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i [2024-11-09 07:06:29,550 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:06:29,812 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:06:29,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i [2024-11-09 07:06:29,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b67a06c/7243406ee6704330b44cb1a71889e00e/FLAG7e81becb5 [2024-11-09 07:06:29,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b67a06c/7243406ee6704330b44cb1a71889e00e [2024-11-09 07:06:29,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:06:29,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:06:29,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:29,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:06:29,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:06:29,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:29" (1/1) ... [2024-11-09 07:06:29,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515b075f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:29, skipping insertion in model container [2024-11-09 07:06:29,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:29" (1/1) ... [2024-11-09 07:06:29,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:06:30,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:30,297 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:06:30,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:30,401 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:06:30,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30 WrapperNode [2024-11-09 07:06:30,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:30,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:30,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:06:30,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:06:30,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,458 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-11-09 07:06:30,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:30,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:06:30,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:06:30,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:06:30,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:06:30,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:06:30,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:06:30,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:06:30,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (1/1) ... [2024-11-09 07:06:30,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:06:30,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:30,532 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) [2024-11-09 07:06:30,535 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 [2024-11-09 07:06:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:06:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:06:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 07:06:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:06:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:06:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:06:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:06:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-09 07:06:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-09 07:06:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 07:06:30,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:06:30,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:06:30,585 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:06:30,703 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:06:30,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:06:30,921 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:06:30,922 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:06:30,947 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:06:30,948 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:06:30,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:30 BoogieIcfgContainer [2024-11-09 07:06:30,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:06:30,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:06:30,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:06:30,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:06:30,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:06:29" (1/3) ... [2024-11-09 07:06:30,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c147fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:30, skipping insertion in model container [2024-11-09 07:06:30,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:30" (2/3) ... [2024-11-09 07:06:30,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c147fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:30, skipping insertion in model container [2024-11-09 07:06:30,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:30" (3/3) ... [2024-11-09 07:06:30,960 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race-2.i [2024-11-09 07:06:30,982 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:06:30,982 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 07:06:30,982 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:06:31,053 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 07:06:31,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2024-11-09 07:06:31,140 INFO L124 PetriNetUnfolderBase]: 5/112 cut-off events. [2024-11-09 07:06:31,140 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 07:06:31,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 5/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 216 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-09 07:06:31,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2024-11-09 07:06:31,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2024-11-09 07:06:31,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:31,164 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;@4f30373c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:31,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 07:06:31,173 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:31,174 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-09 07:06:31,174 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:31,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:31,175 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] [2024-11-09 07:06:31,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:06:31,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:31,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1063124316, now seen corresponding path program 1 times [2024-11-09 07:06:31,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:31,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063471970] [2024-11-09 07:06:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:31,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:31,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063471970] [2024-11-09 07:06:31,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063471970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:31,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:31,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:31,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153293430] [2024-11-09 07:06:31,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:31,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:31,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:31,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:31,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2024-11-09 07:06:31,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:31,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:31,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2024-11-09 07:06:31,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:31,709 INFO L124 PetriNetUnfolderBase]: 8/185 cut-off events. [2024-11-09 07:06:31,709 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 07:06:31,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 185 events. 8/185 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 577 event pairs, 0 based on Foata normal form. 5/170 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2024-11-09 07:06:31,712 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 10 selfloop transitions, 4 changer transitions 1/79 dead transitions. [2024-11-09 07:06:31,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 195 flow [2024-11-09 07:06:31,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-09 07:06:31,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2024-11-09 07:06:31,733 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 4 states and 275 transitions. [2024-11-09 07:06:31,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 195 flow [2024-11-09 07:06:31,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 195 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:31,743 INFO L231 Difference]: Finished difference. Result has 81 places, 75 transitions, 169 flow [2024-11-09 07:06:31,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2024-11-09 07:06:31,753 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2024-11-09 07:06:31,753 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 169 flow [2024-11-09 07:06:31,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:31,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:31,754 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] [2024-11-09 07:06:31,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:06:31,755 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:06:31,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:31,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1998489104, now seen corresponding path program 1 times [2024-11-09 07:06:31,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:31,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850731853] [2024-11-09 07:06:31,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:31,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:32,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:32,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850731853] [2024-11-09 07:06:32,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850731853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:32,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:32,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:32,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429938680] [2024-11-09 07:06:32,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:32,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:32,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:32,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:32,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:32,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 77 [2024-11-09 07:06:32,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 75 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:32,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:32,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 77 [2024-11-09 07:06:32,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:32,627 INFO L124 PetriNetUnfolderBase]: 30/233 cut-off events. [2024-11-09 07:06:32,630 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 07:06:32,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 233 events. 30/233 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 945 event pairs, 4 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 273. Up to 62 conditions per place. [2024-11-09 07:06:32,633 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 25 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2024-11-09 07:06:32,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 243 flow [2024-11-09 07:06:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 343 transitions. [2024-11-09 07:06:32,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2024-11-09 07:06:32,642 INFO L175 Difference]: Start difference. First operand has 81 places, 75 transitions, 169 flow. Second operand 6 states and 343 transitions. [2024-11-09 07:06:32,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 243 flow [2024-11-09 07:06:32,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 235 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 07:06:32,645 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 169 flow [2024-11-09 07:06:32,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2024-11-09 07:06:32,646 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2024-11-09 07:06:32,646 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 169 flow [2024-11-09 07:06:32,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:32,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:32,648 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] [2024-11-09 07:06:32,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:06:32,648 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:06:32,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:32,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1957567684, now seen corresponding path program 1 times [2024-11-09 07:06:32,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:32,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330001914] [2024-11-09 07:06:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:32,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:32,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:32,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:32,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330001914] [2024-11-09 07:06:32,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330001914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:32,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:32,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867805664] [2024-11-09 07:06:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:32,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:32,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:32,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:32,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:32,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 77 [2024-11-09 07:06:32,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:32,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:32,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 77 [2024-11-09 07:06:32,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:32,764 INFO L124 PetriNetUnfolderBase]: 6/141 cut-off events. [2024-11-09 07:06:32,765 INFO L125 PetriNetUnfolderBase]: For 4/10 co-relation queries the response was YES. [2024-11-09 07:06:32,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 141 events. 6/141 cut-off events. For 4/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 379 event pairs, 4 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 134. Up to 21 conditions per place. [2024-11-09 07:06:32,767 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 9 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-09 07:06:32,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 77 transitions, 201 flow [2024-11-09 07:06:32,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:32,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-09 07:06:32,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-09 07:06:32,770 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 169 flow. Second operand 3 states and 209 transitions. [2024-11-09 07:06:32,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 77 transitions, 201 flow [2024-11-09 07:06:32,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 191 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:32,773 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 189 flow [2024-11-09 07:06:32,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2024-11-09 07:06:32,775 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2024-11-09 07:06:32,775 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 189 flow [2024-11-09 07:06:32,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:32,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:32,776 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] [2024-11-09 07:06:32,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:06:32,776 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:06:32,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1947567396, now seen corresponding path program 1 times [2024-11-09 07:06:32,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:32,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211251521] [2024-11-09 07:06:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:32,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:32,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:32,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:32,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211251521] [2024-11-09 07:06:32,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211251521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:32,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:32,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:32,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185723101] [2024-11-09 07:06:32,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:32,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:32,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:32,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:32,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2024-11-09 07:06:32,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:32,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:32,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2024-11-09 07:06:32,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:33,011 INFO L124 PetriNetUnfolderBase]: 2/106 cut-off events. [2024-11-09 07:06:33,012 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 07:06:33,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 106 events. 2/106 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 82. Up to 7 conditions per place. [2024-11-09 07:06:33,013 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 9 selfloop transitions, 3 changer transitions 7/75 dead transitions. [2024-11-09 07:06:33,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 75 transitions, 199 flow [2024-11-09 07:06:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-11-09 07:06:33,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766233766233766 [2024-11-09 07:06:33,015 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 189 flow. Second operand 4 states and 270 transitions. [2024-11-09 07:06:33,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 75 transitions, 199 flow [2024-11-09 07:06:33,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 187 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-09 07:06:33,019 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 153 flow [2024-11-09 07:06:33,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2024-11-09 07:06:33,020 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2024-11-09 07:06:33,020 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 153 flow [2024-11-09 07:06:33,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:33,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:33,021 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:33,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:06:33,021 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:06:33,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:33,022 INFO L85 PathProgramCache]: Analyzing trace with hash -226547286, now seen corresponding path program 1 times [2024-11-09 07:06:33,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:33,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076834935] [2024-11-09 07:06:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:33,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:33,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:33,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:33,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076834935] [2024-11-09 07:06:33,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076834935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:33,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46577709] [2024-11-09 07:06:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:33,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:33,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:33,144 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) [2024-11-09 07:06:33,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:06:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:33,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:06:33,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:33,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:33,417 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:33,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46577709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:33,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:33,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 07:06:33,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966328590] [2024-11-09 07:06:33,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:33,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:06:33,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:33,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:06:33,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:06:33,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2024-11-09 07:06:33,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 153 flow. Second operand has 13 states, 13 states have (on average 62.92307692307692) internal successors, (818), 13 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:33,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:33,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2024-11-09 07:06:33,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:33,717 INFO L124 PetriNetUnfolderBase]: 8/97 cut-off events. [2024-11-09 07:06:33,718 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 07:06:33,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 97 events. 8/97 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 166 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2024-11-09 07:06:33,719 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 12 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-11-09 07:06:33,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 152 flow [2024-11-09 07:06:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:06:33,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 07:06:33,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 445 transitions. [2024-11-09 07:06:33,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8256029684601113 [2024-11-09 07:06:33,721 INFO L175 Difference]: Start difference. First operand has 80 places, 66 transitions, 153 flow. Second operand 7 states and 445 transitions. [2024-11-09 07:06:33,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 152 flow [2024-11-09 07:06:33,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 149 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:33,723 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 111 flow [2024-11-09 07:06:33,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-09 07:06:33,726 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -18 predicate places. [2024-11-09 07:06:33,728 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 111 flow [2024-11-09 07:06:33,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.92307692307692) internal successors, (818), 13 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:33,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:33,729 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:33,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:06:33,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:33,930 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:06:33,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:33,931 INFO L85 PathProgramCache]: Analyzing trace with hash 414146859, now seen corresponding path program 1 times [2024-11-09 07:06:33,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:33,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744930169] [2024-11-09 07:06:33,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:33,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:33,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:06:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:33,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:06:33,992 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:06:33,993 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-09 07:06:33,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-09 07:06:33,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-09 07:06:33,996 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-09 07:06:33,996 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-09 07:06:33,996 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-09 07:06:33,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:06:33,997 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-09 07:06:34,000 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:06:34,002 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 07:06:34,024 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 07:06:34,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 95 transitions, 206 flow [2024-11-09 07:06:34,050 INFO L124 PetriNetUnfolderBase]: 10/197 cut-off events. [2024-11-09 07:06:34,050 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 07:06:34,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 197 events. 10/197 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 453 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 114. Up to 8 conditions per place. [2024-11-09 07:06:34,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 95 transitions, 206 flow [2024-11-09 07:06:34,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 95 transitions, 206 flow [2024-11-09 07:06:34,054 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:34,056 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;@4f30373c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:34,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 07:06:34,062 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:34,063 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-09 07:06:34,063 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:34,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:34,063 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] [2024-11-09 07:06:34,063 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 07:06:34,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:34,064 INFO L85 PathProgramCache]: Analyzing trace with hash -2132165308, now seen corresponding path program 1 times [2024-11-09 07:06:34,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:34,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785439188] [2024-11-09 07:06:34,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:34,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:34,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:34,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785439188] [2024-11-09 07:06:34,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785439188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818224792] [2024-11-09 07:06:34,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:34,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:34,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:34,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-09 07:06:34,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 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) [2024-11-09 07:06:34,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:34,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-09 07:06:34,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:34,241 INFO L124 PetriNetUnfolderBase]: 72/571 cut-off events. [2024-11-09 07:06:34,242 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-09 07:06:34,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 571 events. 72/571 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3318 event pairs, 35 based on Foata normal form. 16/538 useless extension candidates. Maximal degree in co-relation 336. Up to 106 conditions per place. [2024-11-09 07:06:34,250 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 18 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-11-09 07:06:34,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 260 flow [2024-11-09 07:06:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:34,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-09 07:06:34,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8894736842105263 [2024-11-09 07:06:34,252 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 206 flow. Second operand 4 states and 338 transitions. [2024-11-09 07:06:34,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 260 flow [2024-11-09 07:06:34,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 100 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:34,255 INFO L231 Difference]: Finished difference. Result has 100 places, 94 transitions, 218 flow [2024-11-09 07:06:34,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2024-11-09 07:06:34,256 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 4 predicate places. [2024-11-09 07:06:34,257 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 218 flow [2024-11-09 07:06:34,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 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) [2024-11-09 07:06:34,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:34,257 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] [2024-11-09 07:06:34,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:06:34,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 07:06:34,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1678879695, now seen corresponding path program 1 times [2024-11-09 07:06:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:34,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926516901] [2024-11-09 07:06:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:34,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:34,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:34,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926516901] [2024-11-09 07:06:34,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926516901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:34,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:34,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:34,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084341882] [2024-11-09 07:06:34,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:34,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:34,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:34,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:34,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:34,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 95 [2024-11-09 07:06:34,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 218 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) [2024-11-09 07:06:34,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:34,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 95 [2024-11-09 07:06:34,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:34,704 INFO L124 PetriNetUnfolderBase]: 236/941 cut-off events. [2024-11-09 07:06:34,704 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-09 07:06:34,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 941 events. 236/941 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6505 event pairs, 91 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 443. Up to 313 conditions per place. [2024-11-09 07:06:34,712 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 38 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2024-11-09 07:06:34,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 109 transitions, 334 flow [2024-11-09 07:06:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:34,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:34,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-09 07:06:34,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7701754385964912 [2024-11-09 07:06:34,715 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 218 flow. Second operand 6 states and 439 transitions. [2024-11-09 07:06:34,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 109 transitions, 334 flow [2024-11-09 07:06:34,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 328 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:34,718 INFO L231 Difference]: Finished difference. Result has 102 places, 93 transitions, 220 flow [2024-11-09 07:06:34,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2024-11-09 07:06:34,719 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 6 predicate places. [2024-11-09 07:06:34,719 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 220 flow [2024-11-09 07:06:34,720 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) [2024-11-09 07:06:34,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:34,720 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] [2024-11-09 07:06:34,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:06:34,721 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 07:06:34,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:34,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1410162995, now seen corresponding path program 1 times [2024-11-09 07:06:34,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:34,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800450229] [2024-11-09 07:06:34,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:34,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:34,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:34,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800450229] [2024-11-09 07:06:34,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800450229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:34,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:34,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:34,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357816422] [2024-11-09 07:06:34,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:34,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:34,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:34,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:34,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:34,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-09 07:06:34,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 220 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) [2024-11-09 07:06:34,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:34,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-09 07:06:34,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:34,863 INFO L124 PetriNetUnfolderBase]: 116/707 cut-off events. [2024-11-09 07:06:34,864 INFO L125 PetriNetUnfolderBase]: For 100/145 co-relation queries the response was YES. [2024-11-09 07:06:34,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 707 events. 116/707 cut-off events. For 100/145 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4566 event pairs, 58 based on Foata normal form. 4/621 useless extension candidates. Maximal degree in co-relation 463. Up to 185 conditions per place. [2024-11-09 07:06:34,870 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 18 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2024-11-09 07:06:34,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 290 flow [2024-11-09 07:06:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:34,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:34,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-11-09 07:06:34,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9052631578947369 [2024-11-09 07:06:34,872 INFO L175 Difference]: Start difference. First operand has 102 places, 93 transitions, 220 flow. Second operand 3 states and 258 transitions. [2024-11-09 07:06:34,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 290 flow [2024-11-09 07:06:34,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 101 transitions, 280 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:34,887 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 248 flow [2024-11-09 07:06:34,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-11-09 07:06:34,888 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2024-11-09 07:06:34,888 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 248 flow [2024-11-09 07:06:34,888 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) [2024-11-09 07:06:34,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:34,889 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] [2024-11-09 07:06:34,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:06:34,889 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 07:06:34,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:34,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1750110091, now seen corresponding path program 1 times [2024-11-09 07:06:34,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:34,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918987581] [2024-11-09 07:06:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:34,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:34,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:34,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918987581] [2024-11-09 07:06:34,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918987581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:34,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:34,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:34,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474481025] [2024-11-09 07:06:34,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:34,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:34,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-09 07:06:34,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 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) [2024-11-09 07:06:34,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:34,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-09 07:06:34,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:35,066 INFO L124 PetriNetUnfolderBase]: 63/580 cut-off events. [2024-11-09 07:06:35,066 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-09 07:06:35,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 580 events. 63/580 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3221 event pairs, 24 based on Foata normal form. 15/544 useless extension candidates. Maximal degree in co-relation 632. Up to 72 conditions per place. [2024-11-09 07:06:35,070 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 19 selfloop transitions, 4 changer transitions 3/108 dead transitions. [2024-11-09 07:06:35,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 108 transitions, 328 flow [2024-11-09 07:06:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2024-11-09 07:06:35,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8921052631578947 [2024-11-09 07:06:35,071 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 248 flow. Second operand 4 states and 339 transitions. [2024-11-09 07:06:35,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 108 transitions, 328 flow [2024-11-09 07:06:35,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 108 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:35,074 INFO L231 Difference]: Finished difference. Result has 103 places, 98 transitions, 254 flow [2024-11-09 07:06:35,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=103, PETRI_TRANSITIONS=98} [2024-11-09 07:06:35,075 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2024-11-09 07:06:35,075 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 98 transitions, 254 flow [2024-11-09 07:06:35,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 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) [2024-11-09 07:06:35,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:35,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:35,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:06:35,076 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 07:06:35,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:35,077 INFO L85 PathProgramCache]: Analyzing trace with hash -37645542, now seen corresponding path program 1 times [2024-11-09 07:06:35,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:35,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054180714] [2024-11-09 07:06:35,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:35,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:35,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:35,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054180714] [2024-11-09 07:06:35,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054180714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:35,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832401780] [2024-11-09 07:06:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:35,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:35,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:35,164 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) [2024-11-09 07:06:35,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:06:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:35,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:06:35,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:35,346 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:35,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:35,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832401780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:35,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:35,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 07:06:35,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087802451] [2024-11-09 07:06:35,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:35,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:06:35,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:35,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:06:35,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:06:35,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 95 [2024-11-09 07:06:35,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 254 flow. Second operand has 13 states, 13 states have (on average 76.92307692307692) internal successors, (1000), 13 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:35,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:35,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 95 [2024-11-09 07:06:35,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:35,732 INFO L124 PetriNetUnfolderBase]: 81/421 cut-off events. [2024-11-09 07:06:35,733 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-09 07:06:35,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 421 events. 81/421 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2118 event pairs, 1 based on Foata normal form. 15/414 useless extension candidates. Maximal degree in co-relation 620. Up to 56 conditions per place. [2024-11-09 07:06:35,736 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 28 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-09 07:06:35,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 92 transitions, 290 flow [2024-11-09 07:06:35,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:06:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 07:06:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 788 transitions. [2024-11-09 07:06:35,739 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294736842105264 [2024-11-09 07:06:35,739 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 254 flow. Second operand 10 states and 788 transitions. [2024-11-09 07:06:35,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 92 transitions, 290 flow [2024-11-09 07:06:35,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 92 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:06:35,743 INFO L231 Difference]: Finished difference. Result has 86 places, 72 transitions, 193 flow [2024-11-09 07:06:35,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=193, PETRI_PLACES=86, PETRI_TRANSITIONS=72} [2024-11-09 07:06:35,744 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, -10 predicate places. [2024-11-09 07:06:35,744 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 72 transitions, 193 flow [2024-11-09 07:06:35,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 76.92307692307692) internal successors, (1000), 13 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:35,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:35,745 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:35,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:06:35,946 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,SelfDestructingSolverStorable10 [2024-11-09 07:06:35,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 07:06:35,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:35,947 INFO L85 PathProgramCache]: Analyzing trace with hash -678681733, now seen corresponding path program 1 times [2024-11-09 07:06:35,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:35,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392440588] [2024-11-09 07:06:35,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:35,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:35,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:06:35,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:35,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392440588] [2024-11-09 07:06:35,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392440588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:35,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:35,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:35,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294146350] [2024-11-09 07:06:35,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:35,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:35,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:35,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:36,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:36,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-09 07:06:36,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 72 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:36,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:36,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-09 07:06:36,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:36,059 INFO L124 PetriNetUnfolderBase]: 27/229 cut-off events. [2024-11-09 07:06:36,060 INFO L125 PetriNetUnfolderBase]: For 27/31 co-relation queries the response was YES. [2024-11-09 07:06:36,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 229 events. 27/229 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 824 event pairs, 16 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 360. Up to 55 conditions per place. [2024-11-09 07:06:36,061 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 13 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-11-09 07:06:36,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 241 flow [2024-11-09 07:06:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:36,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:36,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-11-09 07:06:36,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8842105263157894 [2024-11-09 07:06:36,063 INFO L175 Difference]: Start difference. First operand has 86 places, 72 transitions, 193 flow. Second operand 3 states and 252 transitions. [2024-11-09 07:06:36,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 241 flow [2024-11-09 07:06:36,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 224 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-09 07:06:36,065 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 212 flow [2024-11-09 07:06:36,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-11-09 07:06:36,066 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, -12 predicate places. [2024-11-09 07:06:36,067 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 212 flow [2024-11-09 07:06:36,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:36,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:36,067 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:36,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:06:36,068 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 07:06:36,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:36,068 INFO L85 PathProgramCache]: Analyzing trace with hash 282277986, now seen corresponding path program 1 times [2024-11-09 07:06:36,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:36,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690177256] [2024-11-09 07:06:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:36,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:36,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:06:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:36,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:06:36,117 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:06:36,118 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-09 07:06:36,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-09 07:06:36,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-09 07:06:36,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-09 07:06:36,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-09 07:06:36,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-09 07:06:36,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-09 07:06:36,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 07:06:36,119 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:36,120 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:06:36,120 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 07:06:36,140 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 07:06:36,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 113 transitions, 253 flow [2024-11-09 07:06:36,172 INFO L124 PetriNetUnfolderBase]: 20/331 cut-off events. [2024-11-09 07:06:36,172 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 07:06:36,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 331 events. 20/331 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 928 event pairs, 1 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 205. Up to 16 conditions per place. [2024-11-09 07:06:36,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 113 transitions, 253 flow [2024-11-09 07:06:36,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 113 transitions, 253 flow [2024-11-09 07:06:36,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:36,176 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;@4f30373c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:36,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 07:06:36,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:36,179 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-09 07:06:36,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:36,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:36,179 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] [2024-11-09 07:06:36,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:36,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1840619684, now seen corresponding path program 1 times [2024-11-09 07:06:36,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:36,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218940224] [2024-11-09 07:06:36,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:36,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:36,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218940224] [2024-11-09 07:06:36,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218940224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:36,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:36,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181980046] [2024-11-09 07:06:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:36,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:36,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:36,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:36,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2024-11-09 07:06:36,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:36,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:36,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2024-11-09 07:06:36,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:36,572 INFO L124 PetriNetUnfolderBase]: 413/2179 cut-off events. [2024-11-09 07:06:36,572 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-09 07:06:36,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2953 conditions, 2179 events. 413/2179 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17472 event pairs, 232 based on Foata normal form. 70/2062 useless extension candidates. Maximal degree in co-relation 1327. Up to 496 conditions per place. [2024-11-09 07:06:36,587 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 24 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-09 07:06:36,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 323 flow [2024-11-09 07:06:36,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2024-11-09 07:06:36,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8849557522123894 [2024-11-09 07:06:36,590 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 253 flow. Second operand 4 states and 400 transitions. [2024-11-09 07:06:36,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 120 transitions, 323 flow [2024-11-09 07:06:36,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 120 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:36,594 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 265 flow [2024-11-09 07:06:36,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2024-11-09 07:06:36,596 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 4 predicate places. [2024-11-09 07:06:36,596 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 265 flow [2024-11-09 07:06:36,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:36,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:36,597 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] [2024-11-09 07:06:36,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:06:36,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:36,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:36,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1497087296, now seen corresponding path program 1 times [2024-11-09 07:06:36,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:36,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510508152] [2024-11-09 07:06:36,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:36,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:36,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:36,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:36,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510508152] [2024-11-09 07:06:36,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510508152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:36,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:36,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:36,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530142218] [2024-11-09 07:06:36,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:36,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:36,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:36,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:36,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 113 [2024-11-09 07:06:36,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 265 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) [2024-11-09 07:06:36,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:36,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 113 [2024-11-09 07:06:36,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:37,479 INFO L124 PetriNetUnfolderBase]: 1292/3917 cut-off events. [2024-11-09 07:06:37,480 INFO L125 PetriNetUnfolderBase]: For 314/314 co-relation queries the response was YES. [2024-11-09 07:06:37,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6266 conditions, 3917 events. 1292/3917 cut-off events. For 314/314 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 34357 event pairs, 412 based on Foata normal form. 0/3662 useless extension candidates. Maximal degree in co-relation 2056. Up to 1483 conditions per place. [2024-11-09 07:06:37,515 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 50 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2024-11-09 07:06:37,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 135 transitions, 421 flow [2024-11-09 07:06:37,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:37,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:37,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2024-11-09 07:06:37,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7890855457227138 [2024-11-09 07:06:37,517 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 265 flow. Second operand 6 states and 535 transitions. [2024-11-09 07:06:37,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 135 transitions, 421 flow [2024-11-09 07:06:37,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 135 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:37,520 INFO L231 Difference]: Finished difference. Result has 121 places, 111 transitions, 267 flow [2024-11-09 07:06:37,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2024-11-09 07:06:37,521 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 6 predicate places. [2024-11-09 07:06:37,521 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 267 flow [2024-11-09 07:06:37,522 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) [2024-11-09 07:06:37,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:37,522 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] [2024-11-09 07:06:37,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:06:37,522 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:37,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1823324052, now seen corresponding path program 1 times [2024-11-09 07:06:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:37,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519245756] [2024-11-09 07:06:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:37,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:37,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:37,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519245756] [2024-11-09 07:06:37,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519245756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:37,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:37,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:37,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097336166] [2024-11-09 07:06:37,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:37,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:37,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:37,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:37,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:37,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-09 07:06:37,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 267 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) [2024-11-09 07:06:37,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:37,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-09 07:06:37,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:38,037 INFO L124 PetriNetUnfolderBase]: 1023/4159 cut-off events. [2024-11-09 07:06:38,038 INFO L125 PetriNetUnfolderBase]: For 676/938 co-relation queries the response was YES. [2024-11-09 07:06:38,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 4159 events. 1023/4159 cut-off events. For 676/938 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 39795 event pairs, 581 based on Foata normal form. 7/3617 useless extension candidates. Maximal degree in co-relation 2112. Up to 1329 conditions per place. [2024-11-09 07:06:38,077 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 27 selfloop transitions, 6 changer transitions 0/124 dead transitions. [2024-11-09 07:06:38,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 124 transitions, 377 flow [2024-11-09 07:06:38,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:38,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:38,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2024-11-09 07:06:38,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9056047197640118 [2024-11-09 07:06:38,079 INFO L175 Difference]: Start difference. First operand has 121 places, 111 transitions, 267 flow. Second operand 3 states and 307 transitions. [2024-11-09 07:06:38,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 124 transitions, 377 flow [2024-11-09 07:06:38,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 124 transitions, 367 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:38,082 INFO L231 Difference]: Finished difference. Result has 120 places, 116 transitions, 303 flow [2024-11-09 07:06:38,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=120, PETRI_TRANSITIONS=116} [2024-11-09 07:06:38,083 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 5 predicate places. [2024-11-09 07:06:38,083 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 116 transitions, 303 flow [2024-11-09 07:06:38,084 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) [2024-11-09 07:06:38,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:38,084 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] [2024-11-09 07:06:38,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 07:06:38,084 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:38,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1406205556, now seen corresponding path program 1 times [2024-11-09 07:06:38,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:38,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468658697] [2024-11-09 07:06:38,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:38,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:38,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:38,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:38,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468658697] [2024-11-09 07:06:38,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468658697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:38,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:38,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:38,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938328112] [2024-11-09 07:06:38,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:38,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:38,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:38,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:38,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:38,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2024-11-09 07:06:38,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 116 transitions, 303 flow. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:38,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:38,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2024-11-09 07:06:38,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:38,561 INFO L124 PetriNetUnfolderBase]: 662/3141 cut-off events. [2024-11-09 07:06:38,561 INFO L125 PetriNetUnfolderBase]: For 430/450 co-relation queries the response was YES. [2024-11-09 07:06:38,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4682 conditions, 3141 events. 662/3141 cut-off events. For 430/450 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 28237 event pairs, 320 based on Foata normal form. 63/2852 useless extension candidates. Maximal degree in co-relation 3788. Up to 540 conditions per place. [2024-11-09 07:06:38,592 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 31 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2024-11-09 07:06:38,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 132 transitions, 414 flow [2024-11-09 07:06:38,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2024-11-09 07:06:38,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8938053097345132 [2024-11-09 07:06:38,594 INFO L175 Difference]: Start difference. First operand has 120 places, 116 transitions, 303 flow. Second operand 4 states and 404 transitions. [2024-11-09 07:06:38,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 132 transitions, 414 flow [2024-11-09 07:06:38,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 132 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:38,598 INFO L231 Difference]: Finished difference. Result has 122 places, 117 transitions, 307 flow [2024-11-09 07:06:38,598 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=122, PETRI_TRANSITIONS=117} [2024-11-09 07:06:38,598 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 7 predicate places. [2024-11-09 07:06:38,598 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 117 transitions, 307 flow [2024-11-09 07:06:38,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:38,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:38,599 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:38,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:06:38,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:38,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:38,599 INFO L85 PathProgramCache]: Analyzing trace with hash -117961782, now seen corresponding path program 1 times [2024-11-09 07:06:38,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:38,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911053390] [2024-11-09 07:06:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:38,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:38,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911053390] [2024-11-09 07:06:38,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911053390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:38,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397891561] [2024-11-09 07:06:38,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:38,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:38,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:38,694 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) [2024-11-09 07:06:38,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:06:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:38,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:06:38,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:38,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:38,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397891561] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:38,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:38,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 07:06:38,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35295756] [2024-11-09 07:06:38,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:38,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:06:38,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:38,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:06:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:06:39,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2024-11-09 07:06:39,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 117 transitions, 307 flow. Second operand has 13 states, 13 states have (on average 90.92307692307692) internal successors, (1182), 13 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:39,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:39,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2024-11-09 07:06:39,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:39,696 INFO L124 PetriNetUnfolderBase]: 1016/4568 cut-off events. [2024-11-09 07:06:39,697 INFO L125 PetriNetUnfolderBase]: For 586/586 co-relation queries the response was YES. [2024-11-09 07:06:39,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6839 conditions, 4568 events. 1016/4568 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 43742 event pairs, 156 based on Foata normal form. 15/4027 useless extension candidates. Maximal degree in co-relation 3793. Up to 749 conditions per place. [2024-11-09 07:06:39,737 INFO L140 encePairwiseOnDemand]: 105/113 looper letters, 50 selfloop transitions, 11 changer transitions 0/155 dead transitions. [2024-11-09 07:06:39,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 155 transitions, 507 flow [2024-11-09 07:06:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:06:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 07:06:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 953 transitions. [2024-11-09 07:06:39,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8433628318584071 [2024-11-09 07:06:39,741 INFO L175 Difference]: Start difference. First operand has 122 places, 117 transitions, 307 flow. Second operand 10 states and 953 transitions. [2024-11-09 07:06:39,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 155 transitions, 507 flow [2024-11-09 07:06:39,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 155 transitions, 501 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:39,747 INFO L231 Difference]: Finished difference. Result has 132 places, 123 transitions, 357 flow [2024-11-09 07:06:39,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=357, PETRI_PLACES=132, PETRI_TRANSITIONS=123} [2024-11-09 07:06:39,748 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 17 predicate places. [2024-11-09 07:06:39,748 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 123 transitions, 357 flow [2024-11-09 07:06:39,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 90.92307692307692) internal successors, (1182), 13 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:39,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:39,749 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:39,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:06:39,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 07:06:39,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:39,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:39,954 INFO L85 PathProgramCache]: Analyzing trace with hash -557545285, now seen corresponding path program 1 times [2024-11-09 07:06:39,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:39,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72079751] [2024-11-09 07:06:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:06:40,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:40,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72079751] [2024-11-09 07:06:40,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72079751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:40,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:40,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:40,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135787477] [2024-11-09 07:06:40,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:40,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:40,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:40,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:40,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:40,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-09 07:06:40,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 123 transitions, 357 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) [2024-11-09 07:06:40,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:40,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-09 07:06:40,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:40,570 INFO L124 PetriNetUnfolderBase]: 916/3884 cut-off events. [2024-11-09 07:06:40,570 INFO L125 PetriNetUnfolderBase]: For 1212/1375 co-relation queries the response was YES. [2024-11-09 07:06:40,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6672 conditions, 3884 events. 916/3884 cut-off events. For 1212/1375 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 36926 event pairs, 539 based on Foata normal form. 4/3502 useless extension candidates. Maximal degree in co-relation 6001. Up to 1192 conditions per place. [2024-11-09 07:06:40,609 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 28 selfloop transitions, 9 changer transitions 0/137 dead transitions. [2024-11-09 07:06:40,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 137 transitions, 482 flow [2024-11-09 07:06:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:40,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-11-09 07:06:40,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9026548672566371 [2024-11-09 07:06:40,611 INFO L175 Difference]: Start difference. First operand has 132 places, 123 transitions, 357 flow. Second operand 3 states and 306 transitions. [2024-11-09 07:06:40,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 137 transitions, 482 flow [2024-11-09 07:06:40,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 137 transitions, 474 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:40,618 INFO L231 Difference]: Finished difference. Result has 134 places, 130 transitions, 425 flow [2024-11-09 07:06:40,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=425, PETRI_PLACES=134, PETRI_TRANSITIONS=130} [2024-11-09 07:06:40,619 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 19 predicate places. [2024-11-09 07:06:40,619 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 130 transitions, 425 flow [2024-11-09 07:06:40,619 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) [2024-11-09 07:06:40,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:40,619 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:40,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:06:40,620 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:40,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1054548099, now seen corresponding path program 1 times [2024-11-09 07:06:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:40,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140411622] [2024-11-09 07:06:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:40,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:06:40,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:40,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140411622] [2024-11-09 07:06:40,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140411622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:40,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:40,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:40,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139472446] [2024-11-09 07:06:40,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:40,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:40,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:40,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:40,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2024-11-09 07:06:40,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 130 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:40,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:40,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2024-11-09 07:06:40,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:40,892 INFO L124 PetriNetUnfolderBase]: 98/1329 cut-off events. [2024-11-09 07:06:40,892 INFO L125 PetriNetUnfolderBase]: For 334/378 co-relation queries the response was YES. [2024-11-09 07:06:40,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1999 conditions, 1329 events. 98/1329 cut-off events. For 334/378 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9813 event pairs, 26 based on Foata normal form. 20/1238 useless extension candidates. Maximal degree in co-relation 896. Up to 101 conditions per place. [2024-11-09 07:06:40,899 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 12 selfloop transitions, 6 changer transitions 0/129 dead transitions. [2024-11-09 07:06:40,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 129 transitions, 446 flow [2024-11-09 07:06:40,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2024-11-09 07:06:40,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9292035398230089 [2024-11-09 07:06:40,901 INFO L175 Difference]: Start difference. First operand has 134 places, 130 transitions, 425 flow. Second operand 3 states and 315 transitions. [2024-11-09 07:06:40,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 129 transitions, 446 flow [2024-11-09 07:06:40,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 129 transitions, 434 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:40,905 INFO L231 Difference]: Finished difference. Result has 134 places, 124 transitions, 379 flow [2024-11-09 07:06:40,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=134, PETRI_TRANSITIONS=124} [2024-11-09 07:06:40,906 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 19 predicate places. [2024-11-09 07:06:40,907 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 124 transitions, 379 flow [2024-11-09 07:06:40,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:40,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:40,907 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:40,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 07:06:40,908 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:40,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:40,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2110657165, now seen corresponding path program 1 times [2024-11-09 07:06:40,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:40,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208729447] [2024-11-09 07:06:40,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:40,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 07:06:40,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:40,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208729447] [2024-11-09 07:06:40,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208729447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:40,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:40,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:40,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648354309] [2024-11-09 07:06:40,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:40,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:40,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:40,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:40,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:40,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-09 07:06:40,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 124 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:40,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:40,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-09 07:06:40,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:41,148 INFO L124 PetriNetUnfolderBase]: 177/1401 cut-off events. [2024-11-09 07:06:41,148 INFO L125 PetriNetUnfolderBase]: For 698/746 co-relation queries the response was YES. [2024-11-09 07:06:41,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2462 conditions, 1401 events. 177/1401 cut-off events. For 698/746 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10818 event pairs, 135 based on Foata normal form. 3/1290 useless extension candidates. Maximal degree in co-relation 2143. Up to 336 conditions per place. [2024-11-09 07:06:41,157 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 23 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2024-11-09 07:06:41,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 129 transitions, 453 flow [2024-11-09 07:06:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2024-11-09 07:06:41,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820058997050148 [2024-11-09 07:06:41,159 INFO L175 Difference]: Start difference. First operand has 134 places, 124 transitions, 379 flow. Second operand 3 states and 299 transitions. [2024-11-09 07:06:41,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 129 transitions, 453 flow [2024-11-09 07:06:41,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 129 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:06:41,163 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 407 flow [2024-11-09 07:06:41,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-09 07:06:41,165 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 22 predicate places. [2024-11-09 07:06:41,165 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 407 flow [2024-11-09 07:06:41,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:41,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:41,165 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 07:06:41,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 07:06:41,166 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:41,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1663829781, now seen corresponding path program 1 times [2024-11-09 07:06:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:41,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869414960] [2024-11-09 07:06:41,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:41,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869414960] [2024-11-09 07:06:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869414960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534784010] [2024-11-09 07:06:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:41,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:41,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:41,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:41,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:06:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:41,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:06:41,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:41,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:41,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534784010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:41,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:41,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-09 07:06:41,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840065881] [2024-11-09 07:06:41,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:41,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:06:41,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:41,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:06:41,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-09 07:06:42,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2024-11-09 07:06:42,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 407 flow. Second operand has 19 states, 19 states have (on average 91.21052631578948) internal successors, (1733), 19 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:42,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:42,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2024-11-09 07:06:42,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:42,359 INFO L124 PetriNetUnfolderBase]: 151/828 cut-off events. [2024-11-09 07:06:42,359 INFO L125 PetriNetUnfolderBase]: For 338/338 co-relation queries the response was YES. [2024-11-09 07:06:42,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 828 events. 151/828 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4892 event pairs, 6 based on Foata normal form. 20/829 useless extension candidates. Maximal degree in co-relation 1505. Up to 88 conditions per place. [2024-11-09 07:06:42,364 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 50 selfloop transitions, 11 changer transitions 0/125 dead transitions. [2024-11-09 07:06:42,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 125 transitions, 502 flow [2024-11-09 07:06:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 07:06:42,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 07:06:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1219 transitions. [2024-11-09 07:06:42,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8298162014976175 [2024-11-09 07:06:42,367 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 407 flow. Second operand 13 states and 1219 transitions. [2024-11-09 07:06:42,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 125 transitions, 502 flow [2024-11-09 07:06:42,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 125 transitions, 463 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-09 07:06:42,371 INFO L231 Difference]: Finished difference. Result has 110 places, 87 transitions, 247 flow [2024-11-09 07:06:42,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=247, PETRI_PLACES=110, PETRI_TRANSITIONS=87} [2024-11-09 07:06:42,371 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2024-11-09 07:06:42,372 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 87 transitions, 247 flow [2024-11-09 07:06:42,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 91.21052631578948) internal successors, (1733), 19 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:42,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:42,374 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:42,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:06:42,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:42,575 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-09 07:06:42,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:42,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1191937286, now seen corresponding path program 1 times [2024-11-09 07:06:42,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:42,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897438834] [2024-11-09 07:06:42,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:42,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:42,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:06:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:42,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:06:42,638 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:06:42,639 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-09 07:06:42,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-09 07:06:42,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-09 07:06:42,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-09 07:06:42,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-09 07:06:42,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-09 07:06:42,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-09 07:06:42,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-09 07:06:42,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 07:06:42,640 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:42,641 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:06:42,641 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 07:06:42,665 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 07:06:42,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 131 transitions, 302 flow [2024-11-09 07:06:42,717 INFO L124 PetriNetUnfolderBase]: 42/565 cut-off events. [2024-11-09 07:06:42,718 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-09 07:06:42,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 565 events. 42/565 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2066 event pairs, 6 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 351. Up to 32 conditions per place. [2024-11-09 07:06:42,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 131 transitions, 302 flow [2024-11-09 07:06:42,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 131 transitions, 302 flow [2024-11-09 07:06:42,725 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:42,726 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;@4f30373c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:42,726 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-09 07:06:42,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:42,729 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-09 07:06:42,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:42,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:42,729 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] [2024-11-09 07:06:42,729 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:42,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:42,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2029671228, now seen corresponding path program 1 times [2024-11-09 07:06:42,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:42,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569806923] [2024-11-09 07:06:42,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:42,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:42,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:42,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:42,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569806923] [2024-11-09 07:06:42,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569806923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:42,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:42,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:42,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142407068] [2024-11-09 07:06:42,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:42,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:42,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:42,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:42,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:42,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-09 07:06:42,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:42,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:42,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-09 07:06:42,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:43,773 INFO L124 PetriNetUnfolderBase]: 2017/8193 cut-off events. [2024-11-09 07:06:43,774 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-09 07:06:43,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11594 conditions, 8193 events. 2017/8193 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 83706 event pairs, 1191 based on Foata normal form. 286/7767 useless extension candidates. Maximal degree in co-relation 5267. Up to 2119 conditions per place. [2024-11-09 07:06:43,846 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2024-11-09 07:06:43,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 140 transitions, 388 flow [2024-11-09 07:06:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:43,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2024-11-09 07:06:43,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8816793893129771 [2024-11-09 07:06:43,849 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 302 flow. Second operand 4 states and 462 transitions. [2024-11-09 07:06:43,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 140 transitions, 388 flow [2024-11-09 07:06:43,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 140 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:43,854 INFO L231 Difference]: Finished difference. Result has 138 places, 130 transitions, 314 flow [2024-11-09 07:06:43,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=138, PETRI_TRANSITIONS=130} [2024-11-09 07:06:43,855 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 4 predicate places. [2024-11-09 07:06:43,855 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 130 transitions, 314 flow [2024-11-09 07:06:43,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:43,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:43,856 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] [2024-11-09 07:06:43,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 07:06:43,856 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:43,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1358511811, now seen corresponding path program 1 times [2024-11-09 07:06:43,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:43,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811565647] [2024-11-09 07:06:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:43,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:44,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:44,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811565647] [2024-11-09 07:06:44,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811565647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:44,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:44,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076229062] [2024-11-09 07:06:44,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:44,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:44,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:44,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:44,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:44,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2024-11-09 07:06:44,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 130 transitions, 314 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) [2024-11-09 07:06:44,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:44,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2024-11-09 07:06:44,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:46,098 INFO L124 PetriNetUnfolderBase]: 6248/15570 cut-off events. [2024-11-09 07:06:46,098 INFO L125 PetriNetUnfolderBase]: For 1593/1593 co-relation queries the response was YES. [2024-11-09 07:06:46,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25646 conditions, 15570 events. 6248/15570 cut-off events. For 1593/1593 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 158157 event pairs, 808 based on Foata normal form. 0/14524 useless extension candidates. Maximal degree in co-relation 23371. Up to 6781 conditions per place. [2024-11-09 07:06:46,331 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 62 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2024-11-09 07:06:46,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 161 transitions, 510 flow [2024-11-09 07:06:46,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:46,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:46,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2024-11-09 07:06:46,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027989821882952 [2024-11-09 07:06:46,334 INFO L175 Difference]: Start difference. First operand has 138 places, 130 transitions, 314 flow. Second operand 6 states and 631 transitions. [2024-11-09 07:06:46,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 161 transitions, 510 flow [2024-11-09 07:06:46,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 161 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:46,361 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 316 flow [2024-11-09 07:06:46,361 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2024-11-09 07:06:46,362 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 6 predicate places. [2024-11-09 07:06:46,362 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 316 flow [2024-11-09 07:06:46,362 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) [2024-11-09 07:06:46,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:46,363 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] [2024-11-09 07:06:46,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 07:06:46,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:46,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash -573880425, now seen corresponding path program 1 times [2024-11-09 07:06:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:46,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965167868] [2024-11-09 07:06:46,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:46,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:46,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:46,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965167868] [2024-11-09 07:06:46,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965167868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:46,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:46,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:46,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729935504] [2024-11-09 07:06:46,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:46,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:46,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:46,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:46,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:46,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-09 07:06:46,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 316 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) [2024-11-09 07:06:46,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:46,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-09 07:06:46,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:49,101 INFO L124 PetriNetUnfolderBase]: 7160/22223 cut-off events. [2024-11-09 07:06:49,101 INFO L125 PetriNetUnfolderBase]: For 4858/5372 co-relation queries the response was YES. [2024-11-09 07:06:49,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34212 conditions, 22223 events. 7160/22223 cut-off events. For 4858/5372 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 266140 event pairs, 5035 based on Foata normal form. 10/19775 useless extension candidates. Maximal degree in co-relation 27383. Up to 8447 conditions per place. [2024-11-09 07:06:49,296 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 36 selfloop transitions, 7 changer transitions 0/147 dead transitions. [2024-11-09 07:06:49,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 147 transitions, 468 flow [2024-11-09 07:06:49,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:49,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-09 07:06:49,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905852417302799 [2024-11-09 07:06:49,299 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 316 flow. Second operand 3 states and 356 transitions. [2024-11-09 07:06:49,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 147 transitions, 468 flow [2024-11-09 07:06:49,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 458 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:49,309 INFO L231 Difference]: Finished difference. Result has 139 places, 135 transitions, 360 flow [2024-11-09 07:06:49,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=139, PETRI_TRANSITIONS=135} [2024-11-09 07:06:49,310 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2024-11-09 07:06:49,311 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 135 transitions, 360 flow [2024-11-09 07:06:49,311 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) [2024-11-09 07:06:49,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:49,311 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] [2024-11-09 07:06:49,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 07:06:49,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:49,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:49,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1468387551, now seen corresponding path program 1 times [2024-11-09 07:06:49,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:49,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478177077] [2024-11-09 07:06:49,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:49,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:49,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:49,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478177077] [2024-11-09 07:06:49,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478177077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:49,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:49,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:06:49,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905777651] [2024-11-09 07:06:49,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:49,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:06:49,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:06:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:06:49,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-09 07:06:49,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:49,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:49,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-09 07:06:49,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:51,465 INFO L124 PetriNetUnfolderBase]: 4968/18140 cut-off events. [2024-11-09 07:06:51,465 INFO L125 PetriNetUnfolderBase]: For 2733/2797 co-relation queries the response was YES. [2024-11-09 07:06:51,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28074 conditions, 18140 events. 4968/18140 cut-off events. For 2733/2797 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 220363 event pairs, 2078 based on Foata normal form. 259/16274 useless extension candidates. Maximal degree in co-relation 22754. Up to 3640 conditions per place. [2024-11-09 07:06:51,636 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 40 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2024-11-09 07:06:51,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 156 transitions, 502 flow [2024-11-09 07:06:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:06:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:06:51,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2024-11-09 07:06:51,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8950381679389313 [2024-11-09 07:06:51,639 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 360 flow. Second operand 4 states and 469 transitions. [2024-11-09 07:06:51,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 156 transitions, 502 flow [2024-11-09 07:06:51,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:51,669 INFO L231 Difference]: Finished difference. Result has 141 places, 136 transitions, 362 flow [2024-11-09 07:06:51,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=141, PETRI_TRANSITIONS=136} [2024-11-09 07:06:51,673 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 7 predicate places. [2024-11-09 07:06:51,674 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 136 transitions, 362 flow [2024-11-09 07:06:51,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:51,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:51,674 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:51,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 07:06:51,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:51,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash -467496006, now seen corresponding path program 1 times [2024-11-09 07:06:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:51,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750004334] [2024-11-09 07:06:51,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:51,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:51,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750004334] [2024-11-09 07:06:51,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750004334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142607597] [2024-11-09 07:06:51,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:51,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:51,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:51,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:51,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:06:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:51,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:06:51,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:52,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:52,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:52,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142607597] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:52,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:52,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 07:06:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51667921] [2024-11-09 07:06:52,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:52,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:06:52,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:06:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:06:52,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2024-11-09 07:06:52,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 136 transitions, 362 flow. Second operand has 13 states, 13 states have (on average 104.92307692307692) internal successors, (1364), 13 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:52,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:52,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2024-11-09 07:06:52,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:55,075 INFO L124 PetriNetUnfolderBase]: 6978/24686 cut-off events. [2024-11-09 07:06:55,076 INFO L125 PetriNetUnfolderBase]: For 3252/3252 co-relation queries the response was YES. [2024-11-09 07:06:55,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38232 conditions, 24686 events. 6978/24686 cut-off events. For 3252/3252 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 308206 event pairs, 1505 based on Foata normal form. 15/21224 useless extension candidates. Maximal degree in co-relation 18423. Up to 4886 conditions per place. [2024-11-09 07:06:55,327 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 58 selfloop transitions, 11 changer transitions 0/178 dead transitions. [2024-11-09 07:06:55,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 178 transitions, 586 flow [2024-11-09 07:06:55,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:06:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 07:06:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1101 transitions. [2024-11-09 07:06:55,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404580152671756 [2024-11-09 07:06:55,331 INFO L175 Difference]: Start difference. First operand has 141 places, 136 transitions, 362 flow. Second operand 10 states and 1101 transitions. [2024-11-09 07:06:55,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 178 transitions, 586 flow [2024-11-09 07:06:55,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 178 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:55,370 INFO L231 Difference]: Finished difference. Result has 151 places, 142 transitions, 412 flow [2024-11-09 07:06:55,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=412, PETRI_PLACES=151, PETRI_TRANSITIONS=142} [2024-11-09 07:06:55,371 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 17 predicate places. [2024-11-09 07:06:55,371 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 142 transitions, 412 flow [2024-11-09 07:06:55,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 104.92307692307692) internal successors, (1364), 13 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:55,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:55,372 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:55,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 07:06:55,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 07:06:55,573 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:55,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:55,574 INFO L85 PathProgramCache]: Analyzing trace with hash 21450891, now seen corresponding path program 1 times [2024-11-09 07:06:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:55,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062743619] [2024-11-09 07:06:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:55,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:06:55,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:55,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062743619] [2024-11-09 07:06:55,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062743619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:55,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:55,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:55,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246897671] [2024-11-09 07:06:55,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:55,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:55,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:55,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:55,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:55,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-09 07:06:55,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 142 transitions, 412 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) [2024-11-09 07:06:55,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:55,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-09 07:06:55,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:59,303 INFO L124 PetriNetUnfolderBase]: 8594/30099 cut-off events. [2024-11-09 07:06:59,304 INFO L125 PetriNetUnfolderBase]: For 11365/13354 co-relation queries the response was YES. [2024-11-09 07:06:59,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51770 conditions, 30099 events. 8594/30099 cut-off events. For 11365/13354 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 393624 event pairs, 4943 based on Foata normal form. 35/26769 useless extension candidates. Maximal degree in co-relation 16490. Up to 9810 conditions per place. [2024-11-09 07:06:59,568 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 38 selfloop transitions, 11 changer transitions 0/162 dead transitions. [2024-11-09 07:06:59,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 162 transitions, 589 flow [2024-11-09 07:06:59,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:59,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2024-11-09 07:06:59,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9033078880407125 [2024-11-09 07:06:59,570 INFO L175 Difference]: Start difference. First operand has 151 places, 142 transitions, 412 flow. Second operand 3 states and 355 transitions. [2024-11-09 07:06:59,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 162 transitions, 589 flow [2024-11-09 07:06:59,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 162 transitions, 581 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:59,588 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 500 flow [2024-11-09 07:06:59,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2024-11-09 07:06:59,589 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 19 predicate places. [2024-11-09 07:06:59,589 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 500 flow [2024-11-09 07:06:59,589 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) [2024-11-09 07:06:59,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:59,590 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:06:59,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 07:06:59,590 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:59,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:59,591 INFO L85 PathProgramCache]: Analyzing trace with hash 856418559, now seen corresponding path program 1 times [2024-11-09 07:06:59,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:59,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488456282] [2024-11-09 07:06:59,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:59,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:06:59,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:59,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488456282] [2024-11-09 07:06:59,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488456282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:59,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:59,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:59,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049806442] [2024-11-09 07:06:59,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:59,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:59,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:59,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:59,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:59,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2024-11-09 07:06:59,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:59,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:59,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2024-11-09 07:06:59,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:00,521 INFO L124 PetriNetUnfolderBase]: 530/4989 cut-off events. [2024-11-09 07:07:00,521 INFO L125 PetriNetUnfolderBase]: For 1505/1679 co-relation queries the response was YES. [2024-11-09 07:07:00,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7637 conditions, 4989 events. 530/4989 cut-off events. For 1505/1679 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 54175 event pairs, 194 based on Foata normal form. 140/4670 useless extension candidates. Maximal degree in co-relation 2862. Up to 422 conditions per place. [2024-11-09 07:07:00,559 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 16 selfloop transitions, 8 changer transitions 0/149 dead transitions. [2024-11-09 07:07:00,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 149 transitions, 527 flow [2024-11-09 07:07:00,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:07:00,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2024-11-09 07:07:00,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.926208651399491 [2024-11-09 07:07:00,561 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 500 flow. Second operand 3 states and 364 transitions. [2024-11-09 07:07:00,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 149 transitions, 527 flow [2024-11-09 07:07:00,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 149 transitions, 515 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 07:07:00,570 INFO L231 Difference]: Finished difference. Result has 153 places, 142 transitions, 436 flow [2024-11-09 07:07:00,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=153, PETRI_TRANSITIONS=142} [2024-11-09 07:07:00,571 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 19 predicate places. [2024-11-09 07:07:00,571 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 142 transitions, 436 flow [2024-11-09 07:07:00,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:00,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:00,571 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:07:00,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 07:07:00,571 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:00,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1238358746, now seen corresponding path program 1 times [2024-11-09 07:07:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:00,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342047975] [2024-11-09 07:07:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 07:07:00,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342047975] [2024-11-09 07:07:00,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342047975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:00,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:00,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:07:00,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950397616] [2024-11-09 07:07:00,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:00,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:00,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-09 07:07:00,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 436 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) [2024-11-09 07:07:00,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:00,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-09 07:07:00,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:01,329 INFO L124 PetriNetUnfolderBase]: 934/5912 cut-off events. [2024-11-09 07:07:01,329 INFO L125 PetriNetUnfolderBase]: For 3634/3736 co-relation queries the response was YES. [2024-11-09 07:07:01,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10624 conditions, 5912 events. 934/5912 cut-off events. For 3634/3736 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 66553 event pairs, 666 based on Foata normal form. 4/5388 useless extension candidates. Maximal degree in co-relation 3847. Up to 1548 conditions per place. [2024-11-09 07:07:01,351 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2024-11-09 07:07:01,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 149 transitions, 540 flow [2024-11-09 07:07:01,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:07:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2024-11-09 07:07:01,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8778625954198473 [2024-11-09 07:07:01,352 INFO L175 Difference]: Start difference. First operand has 153 places, 142 transitions, 436 flow. Second operand 3 states and 345 transitions. [2024-11-09 07:07:01,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 149 transitions, 540 flow [2024-11-09 07:07:01,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 149 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:07:01,358 INFO L231 Difference]: Finished difference. Result has 156 places, 145 transitions, 462 flow [2024-11-09 07:07:01,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=156, PETRI_TRANSITIONS=145} [2024-11-09 07:07:01,358 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 22 predicate places. [2024-11-09 07:07:01,358 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 145 transitions, 462 flow [2024-11-09 07:07:01,359 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) [2024-11-09 07:07:01,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:01,359 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 07:07:01,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 07:07:01,359 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:01,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1963262661, now seen corresponding path program 1 times [2024-11-09 07:07:01,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:01,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767018001] [2024-11-09 07:07:01,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:01,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:01,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767018001] [2024-11-09 07:07:01,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767018001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:01,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096912295] [2024-11-09 07:07:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:01,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:07:01,528 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:07:01,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:07:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:01,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:07:01,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:01,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:07:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:01,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096912295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:07:01,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:07:01,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-09 07:07:01,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607603869] [2024-11-09 07:07:01,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:07:01,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:07:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:07:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-09 07:07:02,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2024-11-09 07:07:02,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 145 transitions, 462 flow. Second operand has 19 states, 19 states have (on average 105.21052631578948) internal successors, (1999), 19 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:02,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:02,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2024-11-09 07:07:02,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:03,257 INFO L124 PetriNetUnfolderBase]: 1216/8145 cut-off events. [2024-11-09 07:07:03,257 INFO L125 PetriNetUnfolderBase]: For 3428/3694 co-relation queries the response was YES. [2024-11-09 07:07:03,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13774 conditions, 8145 events. 1216/8145 cut-off events. For 3428/3694 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 88349 event pairs, 191 based on Foata normal form. 20/7428 useless extension candidates. Maximal degree in co-relation 5543. Up to 893 conditions per place. [2024-11-09 07:07:03,307 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 84 selfloop transitions, 14 changer transitions 1/211 dead transitions. [2024-11-09 07:07:03,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 211 transitions, 868 flow [2024-11-09 07:07:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:07:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 07:07:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1542 transitions. [2024-11-09 07:07:03,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8407851690294439 [2024-11-09 07:07:03,309 INFO L175 Difference]: Start difference. First operand has 156 places, 145 transitions, 462 flow. Second operand 14 states and 1542 transitions. [2024-11-09 07:07:03,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 211 transitions, 868 flow [2024-11-09 07:07:03,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 211 transitions, 856 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 07:07:03,320 INFO L231 Difference]: Finished difference. Result has 171 places, 149 transitions, 517 flow [2024-11-09 07:07:03,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=517, PETRI_PLACES=171, PETRI_TRANSITIONS=149} [2024-11-09 07:07:03,321 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 37 predicate places. [2024-11-09 07:07:03,322 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 149 transitions, 517 flow [2024-11-09 07:07:03,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.21052631578948) internal successors, (1999), 19 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:03,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:03,323 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 07:07:03,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:03,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:03,524 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:03,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:03,525 INFO L85 PathProgramCache]: Analyzing trace with hash -466262246, now seen corresponding path program 1 times [2024-11-09 07:07:03,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:03,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346181776] [2024-11-09 07:07:03,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:03,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 07:07:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:03,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346181776] [2024-11-09 07:07:03,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346181776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:03,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:03,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:07:03,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323541607] [2024-11-09 07:07:03,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:03,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:03,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:03,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:03,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:03,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-09 07:07:03,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 149 transitions, 517 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) [2024-11-09 07:07:03,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:03,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-09 07:07:03,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:04,300 INFO L124 PetriNetUnfolderBase]: 883/5630 cut-off events. [2024-11-09 07:07:04,301 INFO L125 PetriNetUnfolderBase]: For 4270/4366 co-relation queries the response was YES. [2024-11-09 07:07:04,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10695 conditions, 5630 events. 883/5630 cut-off events. For 4270/4366 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 61385 event pairs, 677 based on Foata normal form. 4/5132 useless extension candidates. Maximal degree in co-relation 9881. Up to 1476 conditions per place. [2024-11-09 07:07:04,355 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2024-11-09 07:07:04,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 155 transitions, 612 flow [2024-11-09 07:07:04,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:07:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-09 07:07:04,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8753180661577609 [2024-11-09 07:07:04,357 INFO L175 Difference]: Start difference. First operand has 171 places, 149 transitions, 517 flow. Second operand 3 states and 344 transitions. [2024-11-09 07:07:04,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 155 transitions, 612 flow [2024-11-09 07:07:04,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 155 transitions, 594 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-09 07:07:04,389 INFO L231 Difference]: Finished difference. Result has 168 places, 152 transitions, 535 flow [2024-11-09 07:07:04,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=168, PETRI_TRANSITIONS=152} [2024-11-09 07:07:04,390 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 34 predicate places. [2024-11-09 07:07:04,390 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 152 transitions, 535 flow [2024-11-09 07:07:04,391 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) [2024-11-09 07:07:04,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:04,391 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:04,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 07:07:04,391 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:04,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:04,392 INFO L85 PathProgramCache]: Analyzing trace with hash 78765815, now seen corresponding path program 1 times [2024-11-09 07:07:04,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:04,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323467440] [2024-11-09 07:07:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:04,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 07:07:04,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:04,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323467440] [2024-11-09 07:07:04,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323467440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:04,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:04,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:07:04,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864113167] [2024-11-09 07:07:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:04,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:07:04,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:07:04,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:07:04,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2024-11-09 07:07:04,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 152 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:04,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:04,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2024-11-09 07:07:04,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:06,370 INFO L124 PetriNetUnfolderBase]: 2726/11128 cut-off events. [2024-11-09 07:07:06,370 INFO L125 PetriNetUnfolderBase]: For 5193/5497 co-relation queries the response was YES. [2024-11-09 07:07:06,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21760 conditions, 11128 events. 2726/11128 cut-off events. For 5193/5497 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 122011 event pairs, 1342 based on Foata normal form. 0/10424 useless extension candidates. Maximal degree in co-relation 19469. Up to 2509 conditions per place. [2024-11-09 07:07:06,453 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 59 selfloop transitions, 6 changer transitions 0/183 dead transitions. [2024-11-09 07:07:06,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 183 transitions, 759 flow [2024-11-09 07:07:06,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:07:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:07:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 641 transitions. [2024-11-09 07:07:06,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8155216284987278 [2024-11-09 07:07:06,455 INFO L175 Difference]: Start difference. First operand has 168 places, 152 transitions, 535 flow. Second operand 6 states and 641 transitions. [2024-11-09 07:07:06,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 183 transitions, 759 flow [2024-11-09 07:07:06,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 183 transitions, 745 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-09 07:07:06,535 INFO L231 Difference]: Finished difference. Result has 170 places, 151 transitions, 531 flow [2024-11-09 07:07:06,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=531, PETRI_PLACES=170, PETRI_TRANSITIONS=151} [2024-11-09 07:07:06,536 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 36 predicate places. [2024-11-09 07:07:06,536 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 151 transitions, 531 flow [2024-11-09 07:07:06,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:06,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:06,537 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:06,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 07:07:06,537 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:06,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:06,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1288918785, now seen corresponding path program 1 times [2024-11-09 07:07:06,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:06,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444284339] [2024-11-09 07:07:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:06,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 97 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:06,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:06,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444284339] [2024-11-09 07:07:06,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444284339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948865208] [2024-11-09 07:07:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:06,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:06,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:07:06,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:07:06,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:07:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:06,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:07:06,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:07,314 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:07:07,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948865208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:07,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:07:07,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 21 [2024-11-09 07:07:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891910844] [2024-11-09 07:07:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:07,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:07:07,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:07,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:07:07,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-09 07:07:07,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-09 07:07:07,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 151 transitions, 531 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:07,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:07,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-09 07:07:07,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:08,494 INFO L124 PetriNetUnfolderBase]: 1126/7473 cut-off events. [2024-11-09 07:07:08,494 INFO L125 PetriNetUnfolderBase]: For 4630/4866 co-relation queries the response was YES. [2024-11-09 07:07:08,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14417 conditions, 7473 events. 1126/7473 cut-off events. For 4630/4866 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 80455 event pairs, 159 based on Foata normal form. 48/6973 useless extension candidates. Maximal degree in co-relation 4931. Up to 557 conditions per place. [2024-11-09 07:07:08,547 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 89 selfloop transitions, 16 changer transitions 8/227 dead transitions. [2024-11-09 07:07:08,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 227 transitions, 978 flow [2024-11-09 07:07:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:07:08,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 07:07:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1778 transitions. [2024-11-09 07:07:08,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8482824427480916 [2024-11-09 07:07:08,550 INFO L175 Difference]: Start difference. First operand has 170 places, 151 transitions, 531 flow. Second operand 16 states and 1778 transitions. [2024-11-09 07:07:08,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 227 transitions, 978 flow [2024-11-09 07:07:08,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 227 transitions, 958 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-09 07:07:08,571 INFO L231 Difference]: Finished difference. Result has 175 places, 149 transitions, 528 flow [2024-11-09 07:07:08,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=528, PETRI_PLACES=175, PETRI_TRANSITIONS=149} [2024-11-09 07:07:08,572 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 41 predicate places. [2024-11-09 07:07:08,572 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 149 transitions, 528 flow [2024-11-09 07:07:08,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:08,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:08,573 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:08,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:07:08,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:08,774 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:08,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:08,775 INFO L85 PathProgramCache]: Analyzing trace with hash 66093328, now seen corresponding path program 1 times [2024-11-09 07:07:08,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:08,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079807996] [2024-11-09 07:07:08,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:08,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 07:07:08,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079807996] [2024-11-09 07:07:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079807996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:08,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:08,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:07:08,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275372897] [2024-11-09 07:07:08,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:08,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:08,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-09 07:07:08,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 149 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:08,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:08,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-09 07:07:08,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:09,920 INFO L124 PetriNetUnfolderBase]: 1353/8854 cut-off events. [2024-11-09 07:07:09,920 INFO L125 PetriNetUnfolderBase]: For 5628/5712 co-relation queries the response was YES. [2024-11-09 07:07:09,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17164 conditions, 8854 events. 1353/8854 cut-off events. For 5628/5712 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 105730 event pairs, 605 based on Foata normal form. 0/8294 useless extension candidates. Maximal degree in co-relation 16379. Up to 1591 conditions per place. [2024-11-09 07:07:09,973 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 30 selfloop transitions, 9 changer transitions 1/162 dead transitions. [2024-11-09 07:07:09,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 162 transitions, 662 flow [2024-11-09 07:07:09,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:09,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:07:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2024-11-09 07:07:09,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9033078880407125 [2024-11-09 07:07:09,975 INFO L175 Difference]: Start difference. First operand has 175 places, 149 transitions, 528 flow. Second operand 3 states and 355 transitions. [2024-11-09 07:07:09,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 162 transitions, 662 flow [2024-11-09 07:07:10,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 162 transitions, 608 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-09 07:07:10,059 INFO L231 Difference]: Finished difference. Result has 162 places, 153 transitions, 550 flow [2024-11-09 07:07:10,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=162, PETRI_TRANSITIONS=153} [2024-11-09 07:07:10,060 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 28 predicate places. [2024-11-09 07:07:10,060 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 153 transitions, 550 flow [2024-11-09 07:07:10,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:10,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:10,060 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:10,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 07:07:10,061 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:10,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1305300435, now seen corresponding path program 1 times [2024-11-09 07:07:10,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12269097] [2024-11-09 07:07:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:10,190 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 07:07:10,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:10,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12269097] [2024-11-09 07:07:10,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12269097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:10,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949726143] [2024-11-09 07:07:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:10,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:10,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:07:10,193 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:07:10,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:07:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:10,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:07:10,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 07:07:10,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:07:10,651 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 07:07:10,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949726143] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:07:10,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:07:10,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 07:07:10,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791990104] [2024-11-09 07:07:10,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:07:10,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:07:10,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:10,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:07:10,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:07:10,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 131 [2024-11-09 07:07:10,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 153 transitions, 550 flow. Second operand has 10 states, 10 states have (on average 108.4) internal successors, (1084), 10 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:10,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:10,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 131 [2024-11-09 07:07:10,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:11,478 INFO L124 PetriNetUnfolderBase]: 1022/5505 cut-off events. [2024-11-09 07:07:11,478 INFO L125 PetriNetUnfolderBase]: For 3594/3790 co-relation queries the response was YES. [2024-11-09 07:07:11,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10593 conditions, 5505 events. 1022/5505 cut-off events. For 3594/3790 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 55239 event pairs, 238 based on Foata normal form. 80/5465 useless extension candidates. Maximal degree in co-relation 9919. Up to 562 conditions per place. [2024-11-09 07:07:11,510 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 53 selfloop transitions, 7 changer transitions 8/196 dead transitions. [2024-11-09 07:07:11,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 196 transitions, 826 flow [2024-11-09 07:07:11,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:07:11,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:07:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 699 transitions. [2024-11-09 07:07:11,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8893129770992366 [2024-11-09 07:07:11,512 INFO L175 Difference]: Start difference. First operand has 162 places, 153 transitions, 550 flow. Second operand 6 states and 699 transitions. [2024-11-09 07:07:11,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 196 transitions, 826 flow [2024-11-09 07:07:11,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 196 transitions, 808 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:07:11,534 INFO L231 Difference]: Finished difference. Result has 167 places, 155 transitions, 564 flow [2024-11-09 07:07:11,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=564, PETRI_PLACES=167, PETRI_TRANSITIONS=155} [2024-11-09 07:07:11,536 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 33 predicate places. [2024-11-09 07:07:11,536 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 155 transitions, 564 flow [2024-11-09 07:07:11,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.4) internal successors, (1084), 10 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:11,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:11,537 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:11,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:11,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 07:07:11,738 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:11,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1814708090, now seen corresponding path program 1 times [2024-11-09 07:07:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:11,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291941861] [2024-11-09 07:07:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:11,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:13,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:13,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291941861] [2024-11-09 07:07:13,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291941861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:13,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444969388] [2024-11-09 07:07:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:13,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:13,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:07:13,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:07:13,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:07:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:13,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 07:07:13,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:13,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 07:07:13,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:07:13,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 07:07:14,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 07:07:14,262 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:14,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:07:14,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-11-09 07:07:14,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 94 [2024-11-09 07:07:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:15,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444969388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:07:15,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:07:15,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19, 18] total 54 [2024-11-09 07:07:15,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939568167] [2024-11-09 07:07:15,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:07:15,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-09 07:07:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:15,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-09 07:07:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2610, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 07:07:17,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:19,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:21,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:24,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:26,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:28,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:31,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:31,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 131 [2024-11-09 07:07:31,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 155 transitions, 564 flow. Second operand has 54 states, 54 states have (on average 90.44444444444444) internal successors, (4884), 54 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:31,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:07:31,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 131 [2024-11-09 07:07:31,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:07:33,855 INFO L124 PetriNetUnfolderBase]: 1946/7335 cut-off events. [2024-11-09 07:07:33,855 INFO L125 PetriNetUnfolderBase]: For 4585/4781 co-relation queries the response was YES. [2024-11-09 07:07:33,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16051 conditions, 7335 events. 1946/7335 cut-off events. For 4585/4781 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 71104 event pairs, 134 based on Foata normal form. 24/7118 useless extension candidates. Maximal degree in co-relation 6680. Up to 1000 conditions per place. [2024-11-09 07:07:33,907 INFO L140 encePairwiseOnDemand]: 113/131 looper letters, 149 selfloop transitions, 28 changer transitions 8/289 dead transitions. [2024-11-09 07:07:33,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 289 transitions, 1321 flow [2024-11-09 07:07:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 07:07:33,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-09 07:07:33,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2360 transitions. [2024-11-09 07:07:33,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7206106870229008 [2024-11-09 07:07:33,912 INFO L175 Difference]: Start difference. First operand has 167 places, 155 transitions, 564 flow. Second operand 25 states and 2360 transitions. [2024-11-09 07:07:33,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 289 transitions, 1321 flow [2024-11-09 07:07:33,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 289 transitions, 1313 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 07:07:33,930 INFO L231 Difference]: Finished difference. Result has 197 places, 163 transitions, 664 flow [2024-11-09 07:07:33,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=664, PETRI_PLACES=197, PETRI_TRANSITIONS=163} [2024-11-09 07:07:33,931 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 63 predicate places. [2024-11-09 07:07:33,931 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 163 transitions, 664 flow [2024-11-09 07:07:33,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 90.44444444444444) internal successors, (4884), 54 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:07:33,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:07:33,934 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:33,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:34,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 07:07:34,139 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:07:34,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:34,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1007818022, now seen corresponding path program 2 times [2024-11-09 07:07:34,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:07:34,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402177073] [2024-11-09 07:07:34,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:34,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:35,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:07:35,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402177073] [2024-11-09 07:07:35,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402177073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:35,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082301380] [2024-11-09 07:07:35,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:07:35,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:35,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:07:35,519 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:07:35,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:07:35,712 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:07:35,712 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:07:35,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 07:07:35,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:36,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 07:07:36,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:07:36,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 07:07:36,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 07:07:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:36,919 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:07:37,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-11-09 07:07:37,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 94 [2024-11-09 07:07:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:07:37,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082301380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:07:37,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:07:37,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 19] total 58 [2024-11-09 07:07:37,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594805246] [2024-11-09 07:07:37,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:07:37,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-09 07:07:37,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:07:37,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-09 07:07:37,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 07:07:40,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:07:41,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]