./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:48:15,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:48:15,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:48:15,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:48:15,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:48:15,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:48:15,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:48:15,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:48:15,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:48:15,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:48:15,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:48:15,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:48:15,121 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:48:15,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:48:15,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:48:15,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:48:15,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:48:15,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:48:15,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:48:15,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:48:15,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:48:15,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:48:15,124 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:48:15,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:48:15,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:48:15,125 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:48:15,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:48:15,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:48:15,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:48:15,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:48:15,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:48:15,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:15,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:48:15,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:48:15,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:48:15,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:48:15,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:48:15,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:48:15,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:48:15,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:48:15,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:48:15,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-11-22 17:48:15,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:48:15,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:48:15,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:48:15,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:48:15,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:48:15,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-22 17:48:16,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:48:16,774 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:48:16,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-22 17:48:16,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8c9ae108/2569172365ab4e9c9aba4e04e62e0ce6/FLAG4484647e9 [2024-11-22 17:48:16,800 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8c9ae108/2569172365ab4e9c9aba4e04e62e0ce6 [2024-11-22 17:48:16,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:48:16,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:48:16,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:16,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:48:16,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:48:16,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:16" (1/1) ... [2024-11-22 17:48:16,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3707c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:16, skipping insertion in model container [2024-11-22 17:48:16,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:16" (1/1) ... [2024-11-22 17:48:16,848 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:48:17,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:17,185 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:48:17,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:17,262 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:48:17,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17 WrapperNode [2024-11-22 17:48:17,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:17,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:17,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:48:17,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:48:17,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,314 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2024-11-22 17:48:17,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:17,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:48:17,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:48:17,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:48:17,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:48:17,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:48:17,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:48:17,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:48:17,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (1/1) ... [2024-11-22 17:48:17,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:17,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:17,386 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) [2024-11-22 17:48:17,389 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 [2024-11-22 17:48:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:48:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:48:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:48:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:48:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:48:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:48:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:48:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:48:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:48:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:48:17,429 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:48:17,523 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:48:17,524 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:48:17,705 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:48:17,705 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:48:17,730 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:48:17,731 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 17:48:17,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:17 BoogieIcfgContainer [2024-11-22 17:48:17,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:48:17,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:48:17,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:48:17,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:48:17,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:48:16" (1/3) ... [2024-11-22 17:48:17,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1ae1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:17, skipping insertion in model container [2024-11-22 17:48:17,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:17" (2/3) ... [2024-11-22 17:48:17,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1ae1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:17, skipping insertion in model container [2024-11-22 17:48:17,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:17" (3/3) ... [2024-11-22 17:48:17,740 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-11-22 17:48:17,752 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:48:17,752 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 17:48:17,753 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:48:17,805 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:48:17,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2024-11-22 17:48:17,863 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2024-11-22 17:48:17,863 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:17,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-22 17:48:17,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2024-11-22 17:48:17,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2024-11-22 17:48:17,879 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:48:17,884 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;@2267f34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:48:17,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 17:48:17,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:48:17,915 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-11-22 17:48:17,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:17,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:17,916 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] [2024-11-22 17:48:17,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:17,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:17,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1709663426, now seen corresponding path program 1 times [2024-11-22 17:48:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:17,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908930800] [2024-11-22 17:48:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:18,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:18,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908930800] [2024-11-22 17:48:18,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908930800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:18,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:18,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:18,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028387024] [2024-11-22 17:48:18,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:18,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:48:18,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:18,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:48:18,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:18,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-22 17:48:18,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 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) [2024-11-22 17:48:18,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:18,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-22 17:48:18,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:18,932 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2024-11-22 17:48:18,932 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:18,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2451 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2024-11-22 17:48:18,939 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2024-11-22 17:48:18,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2024-11-22 17:48:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:48:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:48:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-22 17:48:18,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-22 17:48:18,954 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2024-11-22 17:48:18,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2024-11-22 17:48:18,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:18,959 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2024-11-22 17:48:18,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2024-11-22 17:48:18,967 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-11-22 17:48:18,967 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2024-11-22 17:48:18,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 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) [2024-11-22 17:48:18,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:18,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:18,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:48:18,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:18,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:18,969 INFO L85 PathProgramCache]: Analyzing trace with hash 914001375, now seen corresponding path program 1 times [2024-11-22 17:48:18,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:18,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290800991] [2024-11-22 17:48:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:18,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:19,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:19,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290800991] [2024-11-22 17:48:19,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290800991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:19,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:19,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:19,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221806886] [2024-11-22 17:48:19,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:19,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:48:19,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:19,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:48:19,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:19,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-22 17:48:19,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 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) [2024-11-22 17:48:19,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:19,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-22 17:48:19,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:19,471 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2024-11-22 17:48:19,472 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2024-11-22 17:48:19,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 136/155 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3336 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2024-11-22 17:48:19,476 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2024-11-22 17:48:19,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2024-11-22 17:48:19,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:48:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:48:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-22 17:48:19,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-22 17:48:19,479 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2024-11-22 17:48:19,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2024-11-22 17:48:19,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:48:19,483 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2024-11-22 17:48:19,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2024-11-22 17:48:19,484 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2024-11-22 17:48:19,484 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2024-11-22 17:48:19,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 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) [2024-11-22 17:48:19,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:19,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:19,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:48:19,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:19,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1024991904, now seen corresponding path program 1 times [2024-11-22 17:48:19,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:19,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304475303] [2024-11-22 17:48:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:19,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:19,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304475303] [2024-11-22 17:48:19,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304475303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:19,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:19,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:19,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305177670] [2024-11-22 17:48:19,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:19,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:48:19,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:48:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:19,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-22 17:48:19,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:19,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:19,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-22 17:48:19,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:20,012 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2024-11-22 17:48:20,014 INFO L125 PetriNetUnfolderBase]: For 589/609 co-relation queries the response was YES. [2024-11-22 17:48:20,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 589/609 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5761 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2024-11-22 17:48:20,020 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2024-11-22 17:48:20,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2024-11-22 17:48:20,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:48:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:48:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-22 17:48:20,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-22 17:48:20,022 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2024-11-22 17:48:20,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2024-11-22 17:48:20,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:48:20,028 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2024-11-22 17:48:20,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2024-11-22 17:48:20,029 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2024-11-22 17:48:20,029 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2024-11-22 17:48:20,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:20,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:20,029 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:20,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:48:20,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:20,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1016274529, now seen corresponding path program 1 times [2024-11-22 17:48:20,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:20,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993465177] [2024-11-22 17:48:20,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:20,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:20,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:20,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993465177] [2024-11-22 17:48:20,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993465177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:20,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:20,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:20,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034062591] [2024-11-22 17:48:20,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:20,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:48:20,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:20,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:48:20,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:20,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-22 17:48:20,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:20,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:20,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-22 17:48:20,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:20,470 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2024-11-22 17:48:20,471 INFO L125 PetriNetUnfolderBase]: For 1618/1665 co-relation queries the response was YES. [2024-11-22 17:48:20,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1618/1665 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7721 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2024-11-22 17:48:20,477 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2024-11-22 17:48:20,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2024-11-22 17:48:20,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:48:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:48:20,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-22 17:48:20,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-22 17:48:20,479 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2024-11-22 17:48:20,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2024-11-22 17:48:20,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-22 17:48:20,488 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2024-11-22 17:48:20,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2024-11-22 17:48:20,489 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2024-11-22 17:48:20,489 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2024-11-22 17:48:20,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:20,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:20,490 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:20,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:48:20,490 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:20,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash -121785405, now seen corresponding path program 1 times [2024-11-22 17:48:20,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:20,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723178643] [2024-11-22 17:48:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:20,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:20,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:20,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723178643] [2024-11-22 17:48:20,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723178643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:20,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:20,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745727164] [2024-11-22 17:48:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:20,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:20,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:20,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:20,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:21,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:21,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:21,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:21,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:21,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:22,044 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2024-11-22 17:48:22,044 INFO L125 PetriNetUnfolderBase]: For 4918/5024 co-relation queries the response was YES. [2024-11-22 17:48:22,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 4918/5024 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16801 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2024-11-22 17:48:22,059 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2024-11-22 17:48:22,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2024-11-22 17:48:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:22,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2024-11-22 17:48:22,062 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2024-11-22 17:48:22,062 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2024-11-22 17:48:22,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2024-11-22 17:48:22,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2024-11-22 17:48:22,090 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2024-11-22 17:48:22,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2024-11-22 17:48:22,093 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2024-11-22 17:48:22,093 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2024-11-22 17:48:22,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:22,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:22,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:22,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:48:22,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:22,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:22,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1013121371, now seen corresponding path program 2 times [2024-11-22 17:48:22,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:22,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811669559] [2024-11-22 17:48:22,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:22,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:22,120 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:22,120 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811669559] [2024-11-22 17:48:22,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811669559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:22,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:22,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:22,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826527016] [2024-11-22 17:48:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:22,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:22,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:22,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:22,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:22,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:22,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:22,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:23,672 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2024-11-22 17:48:23,672 INFO L125 PetriNetUnfolderBase]: For 11776/12020 co-relation queries the response was YES. [2024-11-22 17:48:23,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11776/12020 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28071 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2024-11-22 17:48:23,696 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2024-11-22 17:48:23,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2024-11-22 17:48:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 17:48:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 17:48:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2024-11-22 17:48:23,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2024-11-22 17:48:23,699 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2024-11-22 17:48:23,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2024-11-22 17:48:23,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-22 17:48:23,749 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2024-11-22 17:48:23,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2024-11-22 17:48:23,750 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2024-11-22 17:48:23,750 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2024-11-22 17:48:23,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:23,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:23,751 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:23,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:48:23,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:23,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:23,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1422582121, now seen corresponding path program 3 times [2024-11-22 17:48:23,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:23,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504869667] [2024-11-22 17:48:23,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:48:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:23,764 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 17:48:23,764 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:24,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:24,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:24,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504869667] [2024-11-22 17:48:24,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504869667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:24,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:24,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:24,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54206475] [2024-11-22 17:48:24,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:24,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:24,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:24,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:24,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:24,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:24,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:24,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:24,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:24,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:25,212 INFO L124 PetriNetUnfolderBase]: 1248/3486 cut-off events. [2024-11-22 17:48:25,212 INFO L125 PetriNetUnfolderBase]: For 17161/17542 co-relation queries the response was YES. [2024-11-22 17:48:25,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 3486 events. 1248/3486 cut-off events. For 17161/17542 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28180 event pairs, 78 based on Foata normal form. 128/3582 useless extension candidates. Maximal degree in co-relation 14665. Up to 1525 conditions per place. [2024-11-22 17:48:25,235 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2024-11-22 17:48:25,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2024-11-22 17:48:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 17:48:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-22 17:48:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2024-11-22 17:48:25,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2024-11-22 17:48:25,238 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2024-11-22 17:48:25,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2024-11-22 17:48:25,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-22 17:48:25,298 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2024-11-22 17:48:25,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2024-11-22 17:48:25,299 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2024-11-22 17:48:25,299 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2024-11-22 17:48:25,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:25,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:25,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:25,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:48:25,301 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:25,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:25,301 INFO L85 PathProgramCache]: Analyzing trace with hash -746214381, now seen corresponding path program 4 times [2024-11-22 17:48:25,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:25,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517494445] [2024-11-22 17:48:25,301 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 17:48:25,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:25,314 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 17:48:25,315 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:25,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:25,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517494445] [2024-11-22 17:48:25,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517494445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:25,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:25,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650655284] [2024-11-22 17:48:25,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:25,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:25,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:25,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:26,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:26,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:26,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:26,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:26,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:26,970 INFO L124 PetriNetUnfolderBase]: 1570/4367 cut-off events. [2024-11-22 17:48:26,971 INFO L125 PetriNetUnfolderBase]: For 27039/27493 co-relation queries the response was YES. [2024-11-22 17:48:26,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 4367 events. 1570/4367 cut-off events. For 27039/27493 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 37130 event pairs, 137 based on Foata normal form. 155/4489 useless extension candidates. Maximal degree in co-relation 19425. Up to 812 conditions per place. [2024-11-22 17:48:26,997 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2024-11-22 17:48:26,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2024-11-22 17:48:26,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 17:48:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-22 17:48:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2024-11-22 17:48:27,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2024-11-22 17:48:27,000 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2024-11-22 17:48:27,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2024-11-22 17:48:27,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-22 17:48:27,082 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2024-11-22 17:48:27,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2024-11-22 17:48:27,084 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2024-11-22 17:48:27,084 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2024-11-22 17:48:27,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:27,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:27,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:27,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:48:27,085 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:27,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash -190314597, now seen corresponding path program 5 times [2024-11-22 17:48:27,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:27,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160232204] [2024-11-22 17:48:27,086 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 17:48:27,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:27,104 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:27,105 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:27,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:27,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160232204] [2024-11-22 17:48:27,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160232204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:27,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:27,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:27,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898766320] [2024-11-22 17:48:27,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:27,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:27,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:27,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:27,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:27,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:27,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:27,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:27,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:27,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:29,156 INFO L124 PetriNetUnfolderBase]: 2099/5778 cut-off events. [2024-11-22 17:48:29,156 INFO L125 PetriNetUnfolderBase]: For 47578/48321 co-relation queries the response was YES. [2024-11-22 17:48:29,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 5778 events. 2099/5778 cut-off events. For 47578/48321 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52069 event pairs, 153 based on Foata normal form. 176/5910 useless extension candidates. Maximal degree in co-relation 27323. Up to 2201 conditions per place. [2024-11-22 17:48:29,190 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 426 selfloop transitions, 221 changer transitions 21/750 dead transitions. [2024-11-22 17:48:29,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 750 transitions, 11340 flow [2024-11-22 17:48:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 17:48:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 17:48:29,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2024-11-22 17:48:29,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2024-11-22 17:48:29,193 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 14 states and 1007 transitions. [2024-11-22 17:48:29,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 750 transitions, 11340 flow [2024-11-22 17:48:29,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 750 transitions, 10974 flow, removed 81 selfloop flow, removed 7 redundant places. [2024-11-22 17:48:29,347 INFO L231 Difference]: Finished difference. Result has 217 places, 543 transitions, 8635 flow [2024-11-22 17:48:29,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8635, PETRI_PLACES=217, PETRI_TRANSITIONS=543} [2024-11-22 17:48:29,349 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 125 predicate places. [2024-11-22 17:48:29,349 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 543 transitions, 8635 flow [2024-11-22 17:48:29,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:29,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:29,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:29,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:48:29,350 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:29,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:29,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1542519371, now seen corresponding path program 1 times [2024-11-22 17:48:29,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:29,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301610303] [2024-11-22 17:48:29,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:29,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:29,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:29,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301610303] [2024-11-22 17:48:29,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301610303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:29,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:29,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:29,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025528712] [2024-11-22 17:48:29,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:29,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:29,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:29,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:29,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:29,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:48:29,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 543 transitions, 8635 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:29,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:29,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:48:29,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:31,360 INFO L124 PetriNetUnfolderBase]: 2618/6770 cut-off events. [2024-11-22 17:48:31,360 INFO L125 PetriNetUnfolderBase]: For 62107/62540 co-relation queries the response was YES. [2024-11-22 17:48:31,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34060 conditions, 6770 events. 2618/6770 cut-off events. For 62107/62540 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 60046 event pairs, 434 based on Foata normal form. 71/6787 useless extension candidates. Maximal degree in co-relation 33961. Up to 2208 conditions per place. [2024-11-22 17:48:31,417 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 610 selfloop transitions, 150 changer transitions 68/901 dead transitions. [2024-11-22 17:48:31,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 901 transitions, 13782 flow [2024-11-22 17:48:31,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 17:48:31,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 17:48:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2024-11-22 17:48:31,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2024-11-22 17:48:31,421 INFO L175 Difference]: Start difference. First operand has 217 places, 543 transitions, 8635 flow. Second operand 14 states and 995 transitions. [2024-11-22 17:48:31,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 901 transitions, 13782 flow [2024-11-22 17:48:31,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 901 transitions, 13437 flow, removed 93 selfloop flow, removed 5 redundant places. [2024-11-22 17:48:31,720 INFO L231 Difference]: Finished difference. Result has 233 places, 614 transitions, 9881 flow [2024-11-22 17:48:31,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=8365, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9881, PETRI_PLACES=233, PETRI_TRANSITIONS=614} [2024-11-22 17:48:31,721 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 141 predicate places. [2024-11-22 17:48:31,721 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 614 transitions, 9881 flow [2024-11-22 17:48:31,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:31,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:31,722 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:31,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:48:31,722 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:31,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:31,722 INFO L85 PathProgramCache]: Analyzing trace with hash -339106291, now seen corresponding path program 6 times [2024-11-22 17:48:31,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:31,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71245094] [2024-11-22 17:48:31,723 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 17:48:31,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:31,733 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 17:48:31,734 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:32,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:32,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71245094] [2024-11-22 17:48:32,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71245094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:32,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:32,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:32,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031028444] [2024-11-22 17:48:32,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:32,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:32,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:32,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:32,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:32,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:32,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 614 transitions, 9881 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:32,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:32,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:32,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:33,704 INFO L124 PetriNetUnfolderBase]: 2379/6638 cut-off events. [2024-11-22 17:48:33,704 INFO L125 PetriNetUnfolderBase]: For 66231/67082 co-relation queries the response was YES. [2024-11-22 17:48:33,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34152 conditions, 6638 events. 2379/6638 cut-off events. For 66231/67082 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 62069 event pairs, 258 based on Foata normal form. 203/6801 useless extension candidates. Maximal degree in co-relation 34046. Up to 1769 conditions per place. [2024-11-22 17:48:33,754 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 579 selfloop transitions, 231 changer transitions 19/917 dead transitions. [2024-11-22 17:48:33,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 917 transitions, 14931 flow [2024-11-22 17:48:33,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:33,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2024-11-22 17:48:33,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7617021276595745 [2024-11-22 17:48:33,756 INFO L175 Difference]: Start difference. First operand has 233 places, 614 transitions, 9881 flow. Second operand 15 states and 1074 transitions. [2024-11-22 17:48:33,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 917 transitions, 14931 flow [2024-11-22 17:48:34,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 917 transitions, 14807 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-22 17:48:34,188 INFO L231 Difference]: Finished difference. Result has 254 places, 675 transitions, 11914 flow [2024-11-22 17:48:34,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=9783, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11914, PETRI_PLACES=254, PETRI_TRANSITIONS=675} [2024-11-22 17:48:34,189 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 162 predicate places. [2024-11-22 17:48:34,189 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 675 transitions, 11914 flow [2024-11-22 17:48:34,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:34,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:34,190 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:34,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:48:34,190 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:34,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:34,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1534148209, now seen corresponding path program 7 times [2024-11-22 17:48:34,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:34,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506437842] [2024-11-22 17:48:34,191 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 17:48:34,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:34,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:34,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:34,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506437842] [2024-11-22 17:48:34,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506437842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:34,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:34,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:34,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523504908] [2024-11-22 17:48:34,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:34,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:34,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:34,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:34,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:34,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:34,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 675 transitions, 11914 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:34,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:34,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:34,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:36,514 INFO L124 PetriNetUnfolderBase]: 2422/6709 cut-off events. [2024-11-22 17:48:36,514 INFO L125 PetriNetUnfolderBase]: For 84482/85591 co-relation queries the response was YES. [2024-11-22 17:48:36,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36397 conditions, 6709 events. 2422/6709 cut-off events. For 84482/85591 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 62627 event pairs, 263 based on Foata normal form. 239/6909 useless extension candidates. Maximal degree in co-relation 36280. Up to 2017 conditions per place. [2024-11-22 17:48:36,586 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 616 selfloop transitions, 225 changer transitions 18/947 dead transitions. [2024-11-22 17:48:36,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 947 transitions, 16614 flow [2024-11-22 17:48:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1078 transitions. [2024-11-22 17:48:36,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2024-11-22 17:48:36,589 INFO L175 Difference]: Start difference. First operand has 254 places, 675 transitions, 11914 flow. Second operand 15 states and 1078 transitions. [2024-11-22 17:48:36,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 947 transitions, 16614 flow [2024-11-22 17:48:37,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 947 transitions, 16252 flow, removed 133 selfloop flow, removed 5 redundant places. [2024-11-22 17:48:37,098 INFO L231 Difference]: Finished difference. Result has 271 places, 701 transitions, 12705 flow [2024-11-22 17:48:37,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11583, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12705, PETRI_PLACES=271, PETRI_TRANSITIONS=701} [2024-11-22 17:48:37,100 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 179 predicate places. [2024-11-22 17:48:37,100 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 701 transitions, 12705 flow [2024-11-22 17:48:37,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:37,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:37,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:37,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:48:37,101 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:37,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1310405227, now seen corresponding path program 2 times [2024-11-22 17:48:37,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:37,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468016586] [2024-11-22 17:48:37,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:37,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:37,112 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:37,112 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:37,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:37,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468016586] [2024-11-22 17:48:37,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468016586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:37,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:37,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:37,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987117223] [2024-11-22 17:48:37,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:37,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:37,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:37,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:37,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:48:37,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 701 transitions, 12705 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:37,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:37,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:48:37,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:39,671 INFO L124 PetriNetUnfolderBase]: 3090/8007 cut-off events. [2024-11-22 17:48:39,671 INFO L125 PetriNetUnfolderBase]: For 101097/101615 co-relation queries the response was YES. [2024-11-22 17:48:39,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44802 conditions, 8007 events. 3090/8007 cut-off events. For 101097/101615 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 73558 event pairs, 555 based on Foata normal form. 106/8050 useless extension candidates. Maximal degree in co-relation 44679. Up to 2897 conditions per place. [2024-11-22 17:48:39,748 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 687 selfloop transitions, 186 changer transitions 53/1003 dead transitions. [2024-11-22 17:48:39,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1003 transitions, 17473 flow [2024-11-22 17:48:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:39,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:39,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2024-11-22 17:48:39,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7460992907801418 [2024-11-22 17:48:39,749 INFO L175 Difference]: Start difference. First operand has 271 places, 701 transitions, 12705 flow. Second operand 15 states and 1052 transitions. [2024-11-22 17:48:39,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1003 transitions, 17473 flow [2024-11-22 17:48:40,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1003 transitions, 16859 flow, removed 97 selfloop flow, removed 11 redundant places. [2024-11-22 17:48:40,459 INFO L231 Difference]: Finished difference. Result has 280 places, 720 transitions, 13017 flow [2024-11-22 17:48:40,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12140, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=701, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13017, PETRI_PLACES=280, PETRI_TRANSITIONS=720} [2024-11-22 17:48:40,460 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 188 predicate places. [2024-11-22 17:48:40,460 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 720 transitions, 13017 flow [2024-11-22 17:48:40,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:40,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:40,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:40,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:48:40,461 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:40,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:40,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1108754079, now seen corresponding path program 3 times [2024-11-22 17:48:40,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:40,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229744479] [2024-11-22 17:48:40,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:48:40,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:40,471 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 17:48:40,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:40,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:40,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229744479] [2024-11-22 17:48:40,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229744479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:40,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:40,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:40,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951586453] [2024-11-22 17:48:40,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:40,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:40,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:40,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:40,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:40,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:48:40,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 720 transitions, 13017 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:40,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:40,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:48:40,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:42,825 INFO L124 PetriNetUnfolderBase]: 3148/8156 cut-off events. [2024-11-22 17:48:42,825 INFO L125 PetriNetUnfolderBase]: For 102377/102873 co-relation queries the response was YES. [2024-11-22 17:48:42,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46963 conditions, 8156 events. 3148/8156 cut-off events. For 102377/102873 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 75166 event pairs, 483 based on Foata normal form. 102/8200 useless extension candidates. Maximal degree in co-relation 46837. Up to 2896 conditions per place. [2024-11-22 17:48:42,879 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 928 selfloop transitions, 137 changer transitions 41/1183 dead transitions. [2024-11-22 17:48:42,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1183 transitions, 20257 flow [2024-11-22 17:48:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2024-11-22 17:48:42,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7510638297872341 [2024-11-22 17:48:42,881 INFO L175 Difference]: Start difference. First operand has 280 places, 720 transitions, 13017 flow. Second operand 15 states and 1059 transitions. [2024-11-22 17:48:42,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1183 transitions, 20257 flow [2024-11-22 17:48:43,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1183 transitions, 19979 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-22 17:48:43,509 INFO L231 Difference]: Finished difference. Result has 292 places, 779 transitions, 14269 flow [2024-11-22 17:48:43,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12803, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=720, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14269, PETRI_PLACES=292, PETRI_TRANSITIONS=779} [2024-11-22 17:48:43,510 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 200 predicate places. [2024-11-22 17:48:43,510 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 779 transitions, 14269 flow [2024-11-22 17:48:43,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:43,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:43,511 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:43,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:48:43,511 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:43,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1662952885, now seen corresponding path program 4 times [2024-11-22 17:48:43,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:43,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476525831] [2024-11-22 17:48:43,511 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 17:48:43,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:43,522 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 17:48:43,522 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:43,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:43,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476525831] [2024-11-22 17:48:43,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476525831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:43,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:43,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:43,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718006863] [2024-11-22 17:48:43,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:43,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:43,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:43,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:43,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:43,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:48:43,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 779 transitions, 14269 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:43,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:43,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:48:43,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:46,137 INFO L124 PetriNetUnfolderBase]: 3204/8341 cut-off events. [2024-11-22 17:48:46,137 INFO L125 PetriNetUnfolderBase]: For 112222/112720 co-relation queries the response was YES. [2024-11-22 17:48:46,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49536 conditions, 8341 events. 3204/8341 cut-off events. For 112222/112720 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 77396 event pairs, 552 based on Foata normal form. 111/8390 useless extension candidates. Maximal degree in co-relation 49403. Up to 2899 conditions per place. [2024-11-22 17:48:46,215 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 768 selfloop transitions, 230 changer transitions 38/1113 dead transitions. [2024-11-22 17:48:46,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1113 transitions, 20011 flow [2024-11-22 17:48:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:46,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:46,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-22 17:48:46,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-22 17:48:46,216 INFO L175 Difference]: Start difference. First operand has 292 places, 779 transitions, 14269 flow. Second operand 15 states and 1054 transitions. [2024-11-22 17:48:46,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1113 transitions, 20011 flow [2024-11-22 17:48:46,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1113 transitions, 19760 flow, removed 58 selfloop flow, removed 9 redundant places. [2024-11-22 17:48:46,993 INFO L231 Difference]: Finished difference. Result has 304 places, 818 transitions, 15598 flow [2024-11-22 17:48:46,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14079, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=779, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15598, PETRI_PLACES=304, PETRI_TRANSITIONS=818} [2024-11-22 17:48:46,994 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 212 predicate places. [2024-11-22 17:48:46,994 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 818 transitions, 15598 flow [2024-11-22 17:48:46,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:46,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:46,995 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:46,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 17:48:46,995 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:46,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash -295726675, now seen corresponding path program 1 times [2024-11-22 17:48:46,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:46,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802192551] [2024-11-22 17:48:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:47,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:47,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802192551] [2024-11-22 17:48:47,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802192551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:47,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:47,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141878813] [2024-11-22 17:48:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:47,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:47,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:47,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:47,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:47,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 818 transitions, 15598 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:47,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:47,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:47,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:49,824 INFO L124 PetriNetUnfolderBase]: 2720/7552 cut-off events. [2024-11-22 17:48:49,824 INFO L125 PetriNetUnfolderBase]: For 114613/115536 co-relation queries the response was YES. [2024-11-22 17:48:49,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44743 conditions, 7552 events. 2720/7552 cut-off events. For 114613/115536 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 71959 event pairs, 264 based on Foata normal form. 173/7677 useless extension candidates. Maximal degree in co-relation 44605. Up to 1988 conditions per place. [2024-11-22 17:48:49,909 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 669 selfloop transitions, 186 changer transitions 25/1161 dead transitions. [2024-11-22 17:48:49,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1161 transitions, 21156 flow [2024-11-22 17:48:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:49,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-22 17:48:49,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-22 17:48:49,911 INFO L175 Difference]: Start difference. First operand has 304 places, 818 transitions, 15598 flow. Second operand 15 states and 1099 transitions. [2024-11-22 17:48:49,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1161 transitions, 21156 flow [2024-11-22 17:48:50,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1161 transitions, 20800 flow, removed 60 selfloop flow, removed 10 redundant places. [2024-11-22 17:48:50,743 INFO L231 Difference]: Finished difference. Result has 317 places, 926 transitions, 17720 flow [2024-11-22 17:48:50,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15264, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17720, PETRI_PLACES=317, PETRI_TRANSITIONS=926} [2024-11-22 17:48:50,744 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 225 predicate places. [2024-11-22 17:48:50,744 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 926 transitions, 17720 flow [2024-11-22 17:48:50,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:50,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:50,745 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:50,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 17:48:50,745 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:50,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:50,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1742526705, now seen corresponding path program 5 times [2024-11-22 17:48:50,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:50,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204384598] [2024-11-22 17:48:50,746 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 17:48:50,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:50,756 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:50,756 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:51,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:51,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204384598] [2024-11-22 17:48:51,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204384598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:51,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:51,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:51,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775475276] [2024-11-22 17:48:51,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:51,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:51,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:51,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:51,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:51,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:48:51,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 926 transitions, 17720 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:51,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:51,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:48:51,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:54,146 INFO L124 PetriNetUnfolderBase]: 3347/8760 cut-off events. [2024-11-22 17:48:54,147 INFO L125 PetriNetUnfolderBase]: For 130105/130659 co-relation queries the response was YES. [2024-11-22 17:48:54,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53891 conditions, 8760 events. 3347/8760 cut-off events. For 130105/130659 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 82351 event pairs, 602 based on Foata normal form. 123/8815 useless extension candidates. Maximal degree in co-relation 53746. Up to 2904 conditions per place. [2024-11-22 17:48:54,233 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 868 selfloop transitions, 260 changer transitions 36/1241 dead transitions. [2024-11-22 17:48:54,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1241 transitions, 23783 flow [2024-11-22 17:48:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:54,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-22 17:48:54,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-22 17:48:54,234 INFO L175 Difference]: Start difference. First operand has 317 places, 926 transitions, 17720 flow. Second operand 15 states and 1054 transitions. [2024-11-22 17:48:54,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1241 transitions, 23783 flow [2024-11-22 17:48:55,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1241 transitions, 23680 flow, removed 45 selfloop flow, removed 3 redundant places. [2024-11-22 17:48:55,194 INFO L231 Difference]: Finished difference. Result has 335 places, 968 transitions, 19219 flow [2024-11-22 17:48:55,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=17619, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19219, PETRI_PLACES=335, PETRI_TRANSITIONS=968} [2024-11-22 17:48:55,195 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 243 predicate places. [2024-11-22 17:48:55,195 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 968 transitions, 19219 flow [2024-11-22 17:48:55,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:55,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:55,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:55,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 17:48:55,196 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:55,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:55,196 INFO L85 PathProgramCache]: Analyzing trace with hash 658878385, now seen corresponding path program 2 times [2024-11-22 17:48:55,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:55,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870115930] [2024-11-22 17:48:55,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:55,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:55,204 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:55,204 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:55,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:55,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870115930] [2024-11-22 17:48:55,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870115930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:55,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:55,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:55,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432506755] [2024-11-22 17:48:55,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:55,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:55,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:55,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:55,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:48:55,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 968 transitions, 19219 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:55,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:55,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:48:55,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:57,976 INFO L124 PetriNetUnfolderBase]: 2702/7568 cut-off events. [2024-11-22 17:48:57,976 INFO L125 PetriNetUnfolderBase]: For 133549/134506 co-relation queries the response was YES. [2024-11-22 17:48:58,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47486 conditions, 7568 events. 2702/7568 cut-off events. For 133549/134506 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 72501 event pairs, 246 based on Foata normal form. 180/7704 useless extension candidates. Maximal degree in co-relation 47334. Up to 1992 conditions per place. [2024-11-22 17:48:58,040 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 763 selfloop transitions, 185 changer transitions 24/1259 dead transitions. [2024-11-22 17:48:58,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1259 transitions, 24163 flow [2024-11-22 17:48:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:48:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:48:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-22 17:48:58,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-22 17:48:58,041 INFO L175 Difference]: Start difference. First operand has 335 places, 968 transitions, 19219 flow. Second operand 15 states and 1099 transitions. [2024-11-22 17:48:58,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1259 transitions, 24163 flow [2024-11-22 17:48:58,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1259 transitions, 23869 flow, removed 79 selfloop flow, removed 8 redundant places. [2024-11-22 17:48:58,928 INFO L231 Difference]: Finished difference. Result has 349 places, 1000 transitions, 19975 flow [2024-11-22 17:48:58,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=18934, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19975, PETRI_PLACES=349, PETRI_TRANSITIONS=1000} [2024-11-22 17:48:58,929 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 257 predicate places. [2024-11-22 17:48:58,929 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 1000 transitions, 19975 flow [2024-11-22 17:48:58,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:58,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:58,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:58,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 17:48:58,930 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:58,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:58,930 INFO L85 PathProgramCache]: Analyzing trace with hash 425477271, now seen corresponding path program 1 times [2024-11-22 17:48:58,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:58,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238393897] [2024-11-22 17:48:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:58,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:59,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:59,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238393897] [2024-11-22 17:48:59,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238393897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:59,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:59,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:48:59,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51512112] [2024-11-22 17:48:59,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:59,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:48:59,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:59,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:48:59,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:48:59,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:48:59,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1000 transitions, 19975 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:59,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:59,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:48:59,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:02,053 INFO L124 PetriNetUnfolderBase]: 3279/8595 cut-off events. [2024-11-22 17:49:02,054 INFO L125 PetriNetUnfolderBase]: For 151812/152426 co-relation queries the response was YES. [2024-11-22 17:49:02,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56210 conditions, 8595 events. 3279/8595 cut-off events. For 151812/152426 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 80524 event pairs, 575 based on Foata normal form. 93/8630 useless extension candidates. Maximal degree in co-relation 56051. Up to 2975 conditions per place. [2024-11-22 17:49:02,154 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1070 selfloop transitions, 162 changer transitions 69/1383 dead transitions. [2024-11-22 17:49:02,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1383 transitions, 27350 flow [2024-11-22 17:49:02,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 17:49:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-22 17:49:02,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1119 transitions. [2024-11-22 17:49:02,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7440159574468085 [2024-11-22 17:49:02,156 INFO L175 Difference]: Start difference. First operand has 349 places, 1000 transitions, 19975 flow. Second operand 16 states and 1119 transitions. [2024-11-22 17:49:02,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1383 transitions, 27350 flow [2024-11-22 17:49:03,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1383 transitions, 27013 flow, removed 65 selfloop flow, removed 8 redundant places. [2024-11-22 17:49:03,403 INFO L231 Difference]: Finished difference. Result has 364 places, 1054 transitions, 20880 flow [2024-11-22 17:49:03,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19707, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=20880, PETRI_PLACES=364, PETRI_TRANSITIONS=1054} [2024-11-22 17:49:03,404 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 272 predicate places. [2024-11-22 17:49:03,404 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 1054 transitions, 20880 flow [2024-11-22 17:49:03,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:03,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:03,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:03,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 17:49:03,405 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:03,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:03,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1656638187, now seen corresponding path program 3 times [2024-11-22 17:49:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:03,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767393777] [2024-11-22 17:49:03,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:49:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:03,412 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 17:49:03,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:03,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:03,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767393777] [2024-11-22 17:49:03,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767393777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:03,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:03,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175113221] [2024-11-22 17:49:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:03,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:03,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:03,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:49:03,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1054 transitions, 20880 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:03,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:03,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:49:03,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:06,114 INFO L124 PetriNetUnfolderBase]: 2637/7470 cut-off events. [2024-11-22 17:49:06,114 INFO L125 PetriNetUnfolderBase]: For 145674/146640 co-relation queries the response was YES. [2024-11-22 17:49:06,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49511 conditions, 7470 events. 2637/7470 cut-off events. For 145674/146640 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 71698 event pairs, 267 based on Foata normal form. 220/7654 useless extension candidates. Maximal degree in co-relation 49345. Up to 1984 conditions per place. [2024-11-22 17:49:06,205 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 720 selfloop transitions, 216 changer transitions 28/1262 dead transitions. [2024-11-22 17:49:06,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1262 transitions, 25568 flow [2024-11-22 17:49:06,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 17:49:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 17:49:06,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2024-11-22 17:49:06,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7803951367781155 [2024-11-22 17:49:06,207 INFO L175 Difference]: Start difference. First operand has 364 places, 1054 transitions, 20880 flow. Second operand 14 states and 1027 transitions. [2024-11-22 17:49:06,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1262 transitions, 25568 flow [2024-11-22 17:49:07,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1262 transitions, 25382 flow, removed 71 selfloop flow, removed 5 redundant places. [2024-11-22 17:49:07,365 INFO L231 Difference]: Finished difference. Result has 379 places, 1074 transitions, 22108 flow [2024-11-22 17:49:07,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20694, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22108, PETRI_PLACES=379, PETRI_TRANSITIONS=1074} [2024-11-22 17:49:07,366 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 287 predicate places. [2024-11-22 17:49:07,366 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 1074 transitions, 22108 flow [2024-11-22 17:49:07,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:07,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:07,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:07,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 17:49:07,367 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:07,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 264199829, now seen corresponding path program 4 times [2024-11-22 17:49:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:07,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385354295] [2024-11-22 17:49:07,367 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 17:49:07,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:07,376 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 17:49:07,377 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:07,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385354295] [2024-11-22 17:49:07,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385354295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:07,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:07,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:07,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803895379] [2024-11-22 17:49:07,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:07,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:07,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:07,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:07,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:49:07,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1074 transitions, 22108 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:07,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:07,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:49:07,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:10,064 INFO L124 PetriNetUnfolderBase]: 2673/7597 cut-off events. [2024-11-22 17:49:10,064 INFO L125 PetriNetUnfolderBase]: For 163783/164814 co-relation queries the response was YES. [2024-11-22 17:49:10,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51620 conditions, 7597 events. 2673/7597 cut-off events. For 163783/164814 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73350 event pairs, 266 based on Foata normal form. 226/7790 useless extension candidates. Maximal degree in co-relation 51449. Up to 1985 conditions per place. [2024-11-22 17:49:10,160 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 759 selfloop transitions, 243 changer transitions 21/1321 dead transitions. [2024-11-22 17:49:10,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1321 transitions, 27686 flow [2024-11-22 17:49:10,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1097 transitions. [2024-11-22 17:49:10,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7780141843971631 [2024-11-22 17:49:10,161 INFO L175 Difference]: Start difference. First operand has 379 places, 1074 transitions, 22108 flow. Second operand 15 states and 1097 transitions. [2024-11-22 17:49:10,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1321 transitions, 27686 flow [2024-11-22 17:49:11,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1321 transitions, 27508 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-22 17:49:11,339 INFO L231 Difference]: Finished difference. Result has 392 places, 1113 transitions, 23817 flow [2024-11-22 17:49:11,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21944, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23817, PETRI_PLACES=392, PETRI_TRANSITIONS=1113} [2024-11-22 17:49:11,340 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 300 predicate places. [2024-11-22 17:49:11,341 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1113 transitions, 23817 flow [2024-11-22 17:49:11,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:11,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:11,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:11,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 17:49:11,341 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:11,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:11,342 INFO L85 PathProgramCache]: Analyzing trace with hash 51531535, now seen corresponding path program 5 times [2024-11-22 17:49:11,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:11,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470141058] [2024-11-22 17:49:11,342 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 17:49:11,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:11,349 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:11,349 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:11,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:11,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470141058] [2024-11-22 17:49:11,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470141058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:11,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:11,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:11,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142722537] [2024-11-22 17:49:11,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:11,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:11,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:11,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:11,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:11,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:49:11,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1113 transitions, 23817 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:11,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:11,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:49:11,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:14,222 INFO L124 PetriNetUnfolderBase]: 2684/7643 cut-off events. [2024-11-22 17:49:14,222 INFO L125 PetriNetUnfolderBase]: For 181217/182367 co-relation queries the response was YES. [2024-11-22 17:49:14,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53144 conditions, 7643 events. 2684/7643 cut-off events. For 181217/182367 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 73981 event pairs, 263 based on Foata normal form. 295/7901 useless extension candidates. Maximal degree in co-relation 52968. Up to 1986 conditions per place. [2024-11-22 17:49:14,309 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 749 selfloop transitions, 257 changer transitions 26/1330 dead transitions. [2024-11-22 17:49:14,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1330 transitions, 28958 flow [2024-11-22 17:49:14,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:14,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1094 transitions. [2024-11-22 17:49:14,311 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.775886524822695 [2024-11-22 17:49:14,311 INFO L175 Difference]: Start difference. First operand has 392 places, 1113 transitions, 23817 flow. Second operand 15 states and 1094 transitions. [2024-11-22 17:49:14,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1330 transitions, 28958 flow [2024-11-22 17:49:15,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1330 transitions, 28661 flow, removed 36 selfloop flow, removed 9 redundant places. [2024-11-22 17:49:15,538 INFO L231 Difference]: Finished difference. Result has 402 places, 1140 transitions, 25236 flow [2024-11-22 17:49:15,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23533, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25236, PETRI_PLACES=402, PETRI_TRANSITIONS=1140} [2024-11-22 17:49:15,539 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 310 predicate places. [2024-11-22 17:49:15,539 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 1140 transitions, 25236 flow [2024-11-22 17:49:15,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:15,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:15,539 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:15,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 17:49:15,539 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:15,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:15,540 INFO L85 PathProgramCache]: Analyzing trace with hash -19214287, now seen corresponding path program 8 times [2024-11-22 17:49:15,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:15,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723528907] [2024-11-22 17:49:15,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:49:15,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:15,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:15,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:15,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:15,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723528907] [2024-11-22 17:49:15,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723528907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:15,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:15,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:15,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160110691] [2024-11-22 17:49:15,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:15,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:15,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:15,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:16,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:49:16,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1140 transitions, 25236 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:16,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:16,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:49:16,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:18,475 INFO L124 PetriNetUnfolderBase]: 2711/7696 cut-off events. [2024-11-22 17:49:18,475 INFO L125 PetriNetUnfolderBase]: For 197160/198572 co-relation queries the response was YES. [2024-11-22 17:49:18,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55252 conditions, 7696 events. 2711/7696 cut-off events. For 197160/198572 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 74777 event pairs, 279 based on Foata normal form. 318/7982 useless extension candidates. Maximal degree in co-relation 55072. Up to 2023 conditions per place. [2024-11-22 17:49:18,555 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 732 selfloop transitions, 392 changer transitions 22/1346 dead transitions. [2024-11-22 17:49:18,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1346 transitions, 31395 flow [2024-11-22 17:49:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2024-11-22 17:49:18,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2024-11-22 17:49:18,557 INFO L175 Difference]: Start difference. First operand has 402 places, 1140 transitions, 25236 flow. Second operand 15 states and 1075 transitions. [2024-11-22 17:49:18,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1346 transitions, 31395 flow [2024-11-22 17:49:19,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1346 transitions, 31102 flow, removed 29 selfloop flow, removed 9 redundant places. [2024-11-22 17:49:19,814 INFO L231 Difference]: Finished difference. Result has 414 places, 1189 transitions, 27758 flow [2024-11-22 17:49:19,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=24961, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27758, PETRI_PLACES=414, PETRI_TRANSITIONS=1189} [2024-11-22 17:49:19,815 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 322 predicate places. [2024-11-22 17:49:19,815 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 1189 transitions, 27758 flow [2024-11-22 17:49:19,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:19,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:19,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:19,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 17:49:19,816 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:19,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:19,816 INFO L85 PathProgramCache]: Analyzing trace with hash -412887781, now seen corresponding path program 6 times [2024-11-22 17:49:19,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:19,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153675363] [2024-11-22 17:49:19,816 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 17:49:19,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:19,824 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 17:49:19,824 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:19,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153675363] [2024-11-22 17:49:19,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153675363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:19,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:19,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:19,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310114087] [2024-11-22 17:49:19,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:19,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:19,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:19,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:19,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:20,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-22 17:49:20,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 1189 transitions, 27758 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:20,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:20,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-22 17:49:20,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:22,926 INFO L124 PetriNetUnfolderBase]: 2719/7779 cut-off events. [2024-11-22 17:49:22,926 INFO L125 PetriNetUnfolderBase]: For 204282/205495 co-relation queries the response was YES. [2024-11-22 17:49:22,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56099 conditions, 7779 events. 2719/7779 cut-off events. For 204282/205495 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 75781 event pairs, 256 based on Foata normal form. 279/8028 useless extension candidates. Maximal degree in co-relation 55913. Up to 1987 conditions per place. [2024-11-22 17:49:23,006 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 821 selfloop transitions, 253 changer transitions 32/1422 dead transitions. [2024-11-22 17:49:23,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1422 transitions, 32937 flow [2024-11-22 17:49:23,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:23,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2024-11-22 17:49:23,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2024-11-22 17:49:23,007 INFO L175 Difference]: Start difference. First operand has 414 places, 1189 transitions, 27758 flow. Second operand 15 states and 1076 transitions. [2024-11-22 17:49:23,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1422 transitions, 32937 flow [2024-11-22 17:49:24,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 1422 transitions, 32544 flow, removed 96 selfloop flow, removed 8 redundant places. [2024-11-22 17:49:24,305 INFO L231 Difference]: Finished difference. Result has 429 places, 1214 transitions, 28714 flow [2024-11-22 17:49:24,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=27390, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28714, PETRI_PLACES=429, PETRI_TRANSITIONS=1214} [2024-11-22 17:49:24,306 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 337 predicate places. [2024-11-22 17:49:24,306 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 1214 transitions, 28714 flow [2024-11-22 17:49:24,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:24,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:24,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:24,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 17:49:24,307 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:24,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:24,307 INFO L85 PathProgramCache]: Analyzing trace with hash 62623573, now seen corresponding path program 2 times [2024-11-22 17:49:24,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:24,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916093820] [2024-11-22 17:49:24,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:49:24,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:24,315 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:24,315 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:24,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916093820] [2024-11-22 17:49:24,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916093820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:24,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:24,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:24,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857913816] [2024-11-22 17:49:24,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:24,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:24,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:24,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:24,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:24,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:49:24,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1214 transitions, 28714 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:24,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:24,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:49:24,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:28,292 INFO L124 PetriNetUnfolderBase]: 3371/9041 cut-off events. [2024-11-22 17:49:28,293 INFO L125 PetriNetUnfolderBase]: For 241340/242024 co-relation queries the response was YES. [2024-11-22 17:49:28,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67286 conditions, 9041 events. 3371/9041 cut-off events. For 241340/242024 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 86752 event pairs, 680 based on Foata normal form. 89/9070 useless extension candidates. Maximal degree in co-relation 67093. Up to 2967 conditions per place. [2024-11-22 17:49:28,407 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 891 selfloop transitions, 363 changer transitions 51/1392 dead transitions. [2024-11-22 17:49:28,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1392 transitions, 33730 flow [2024-11-22 17:49:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 17:49:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 17:49:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 964 transitions. [2024-11-22 17:49:28,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7325227963525835 [2024-11-22 17:49:28,409 INFO L175 Difference]: Start difference. First operand has 429 places, 1214 transitions, 28714 flow. Second operand 14 states and 964 transitions. [2024-11-22 17:49:28,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1392 transitions, 33730 flow [2024-11-22 17:49:30,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1392 transitions, 33154 flow, removed 94 selfloop flow, removed 10 redundant places. [2024-11-22 17:49:30,205 INFO L231 Difference]: Finished difference. Result has 438 places, 1246 transitions, 29769 flow [2024-11-22 17:49:30,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=28177, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29769, PETRI_PLACES=438, PETRI_TRANSITIONS=1246} [2024-11-22 17:49:30,206 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 346 predicate places. [2024-11-22 17:49:30,206 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1246 transitions, 29769 flow [2024-11-22 17:49:30,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:30,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:30,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:30,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 17:49:30,207 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:30,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:30,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1605457173, now seen corresponding path program 3 times [2024-11-22 17:49:30,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:30,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239391490] [2024-11-22 17:49:30,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:49:30,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:30,215 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 17:49:30,215 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:30,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:30,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239391490] [2024-11-22 17:49:30,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239391490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:30,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:30,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:30,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045521793] [2024-11-22 17:49:30,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:30,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:30,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:30,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:49:30,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1246 transitions, 29769 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:30,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:30,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:49:30,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:34,259 INFO L124 PetriNetUnfolderBase]: 3428/9159 cut-off events. [2024-11-22 17:49:34,259 INFO L125 PetriNetUnfolderBase]: For 248624/249333 co-relation queries the response was YES. [2024-11-22 17:49:34,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69451 conditions, 9159 events. 3428/9159 cut-off events. For 248624/249333 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 87868 event pairs, 641 based on Foata normal form. 110/9213 useless extension candidates. Maximal degree in co-relation 69256. Up to 2967 conditions per place. [2024-11-22 17:49:34,363 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1202 selfloop transitions, 201 changer transitions 22/1512 dead transitions. [2024-11-22 17:49:34,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1512 transitions, 36653 flow [2024-11-22 17:49:34,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:34,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1035 transitions. [2024-11-22 17:49:34,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7340425531914894 [2024-11-22 17:49:34,365 INFO L175 Difference]: Start difference. First operand has 438 places, 1246 transitions, 29769 flow. Second operand 15 states and 1035 transitions. [2024-11-22 17:49:34,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1512 transitions, 36653 flow [2024-11-22 17:49:36,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1512 transitions, 36515 flow, removed 29 selfloop flow, removed 7 redundant places. [2024-11-22 17:49:36,204 INFO L231 Difference]: Finished difference. Result has 451 places, 1297 transitions, 31409 flow [2024-11-22 17:49:36,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29644, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31409, PETRI_PLACES=451, PETRI_TRANSITIONS=1297} [2024-11-22 17:49:36,205 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 359 predicate places. [2024-11-22 17:49:36,205 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 1297 transitions, 31409 flow [2024-11-22 17:49:36,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:36,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:36,206 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:36,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 17:49:36,206 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:36,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:36,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1779910327, now seen corresponding path program 4 times [2024-11-22 17:49:36,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:36,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482132794] [2024-11-22 17:49:36,207 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 17:49:36,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:36,214 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 17:49:36,216 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:36,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:36,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482132794] [2024-11-22 17:49:36,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482132794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:36,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:36,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:36,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020020442] [2024-11-22 17:49:36,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:36,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:36,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:36,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:36,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:36,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:49:36,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1297 transitions, 31409 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:36,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:36,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:49:36,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:40,272 INFO L124 PetriNetUnfolderBase]: 3475/9307 cut-off events. [2024-11-22 17:49:40,272 INFO L125 PetriNetUnfolderBase]: For 262589/263296 co-relation queries the response was YES. [2024-11-22 17:49:40,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72305 conditions, 9307 events. 3475/9307 cut-off events. For 262589/263296 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 89739 event pairs, 680 based on Foata normal form. 107/9354 useless extension candidates. Maximal degree in co-relation 72104. Up to 2967 conditions per place. [2024-11-22 17:49:40,384 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 946 selfloop transitions, 385 changer transitions 54/1472 dead transitions. [2024-11-22 17:49:40,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1472 transitions, 36754 flow [2024-11-22 17:49:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:40,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1027 transitions. [2024-11-22 17:49:40,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7283687943262411 [2024-11-22 17:49:40,385 INFO L175 Difference]: Start difference. First operand has 451 places, 1297 transitions, 31409 flow. Second operand 15 states and 1027 transitions. [2024-11-22 17:49:40,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1472 transitions, 36754 flow [2024-11-22 17:49:42,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 1472 transitions, 36505 flow, removed 68 selfloop flow, removed 8 redundant places. [2024-11-22 17:49:42,557 INFO L231 Difference]: Finished difference. Result has 463 places, 1305 transitions, 32535 flow [2024-11-22 17:49:42,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=31204, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=914, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=32535, PETRI_PLACES=463, PETRI_TRANSITIONS=1305} [2024-11-22 17:49:42,558 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 371 predicate places. [2024-11-22 17:49:42,558 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1305 transitions, 32535 flow [2024-11-22 17:49:42,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:42,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:42,559 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:42,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 17:49:42,559 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:42,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash 480252119, now seen corresponding path program 6 times [2024-11-22 17:49:42,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:42,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114583927] [2024-11-22 17:49:42,559 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 17:49:42,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:42,566 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 17:49:42,567 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:42,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:42,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114583927] [2024-11-22 17:49:42,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114583927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:42,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:42,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:42,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121390784] [2024-11-22 17:49:42,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:42,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:42,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:42,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:42,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:42,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-22 17:49:42,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1305 transitions, 32535 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:49:42,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:42,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-22 17:49:42,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:46,660 INFO L124 PetriNetUnfolderBase]: 3498/9353 cut-off events. [2024-11-22 17:49:46,660 INFO L125 PetriNetUnfolderBase]: For 272149/272794 co-relation queries the response was YES. [2024-11-22 17:49:46,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73653 conditions, 9353 events. 3498/9353 cut-off events. For 272149/272794 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 90113 event pairs, 667 based on Foata normal form. 130/9418 useless extension candidates. Maximal degree in co-relation 73447. Up to 2895 conditions per place. [2024-11-22 17:49:46,779 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 1215 selfloop transitions, 208 changer transitions 36/1554 dead transitions. [2024-11-22 17:49:46,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1554 transitions, 39169 flow [2024-11-22 17:49:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:46,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1030 transitions. [2024-11-22 17:49:46,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7304964539007093 [2024-11-22 17:49:46,780 INFO L175 Difference]: Start difference. First operand has 463 places, 1305 transitions, 32535 flow. Second operand 15 states and 1030 transitions. [2024-11-22 17:49:46,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1554 transitions, 39169 flow