./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:20:40,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:20:40,827 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:20:40,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:20:40,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:20:40,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:20:40,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:20:40,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:20:40,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:20:40,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:20:40,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:20:40,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:20:40,856 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:20:40,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:20:40,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:20:40,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:20:40,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:20:40,858 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2025-02-06 09:20:41,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:20:41,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:20:41,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:20:41,123 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:20:41,123 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:20:41,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2025-02-06 09:20:42,217 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/17ed4967a/d33403e1d4d141ea8b75fb1fe4fee4b2/FLAG4ef7f035f [2025-02-06 09:20:42,469 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:20:42,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2025-02-06 09:20:42,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/17ed4967a/d33403e1d4d141ea8b75fb1fe4fee4b2/FLAG4ef7f035f [2025-02-06 09:20:42,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/17ed4967a/d33403e1d4d141ea8b75fb1fe4fee4b2 [2025-02-06 09:20:42,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:20:42,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:20:42,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:20:42,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:20:42,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:20:42,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:20:42" (1/1) ... [2025-02-06 09:20:42,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6b090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:42, skipping insertion in model container [2025-02-06 09:20:42,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:20:42" (1/1) ... [2025-02-06 09:20:42,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:20:43,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:20:43,064 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:20:43,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:20:43,135 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:20:43,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43 WrapperNode [2025-02-06 09:20:43,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:20:43,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:20:43,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:20:43,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:20:43,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,172 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 147 [2025-02-06 09:20:43,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:20:43,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:20:43,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:20:43,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:20:43,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,188 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:20:43,199 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:20:43,199 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:20:43,199 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:20:43,200 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (1/1) ... [2025-02-06 09:20:43,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:20:43,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:43,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:20:43,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:20:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:20:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:20:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:20:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:20:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:20:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:20:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:20:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:20:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:20:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:20:43,248 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:20:43,331 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:20:43,333 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:20:43,598 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:20:43,598 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:20:43,630 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:20:43,631 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:20:43,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:20:43 BoogieIcfgContainer [2025-02-06 09:20:43,631 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:20:43,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:20:43,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:20:43,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:20:43,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:20:42" (1/3) ... [2025-02-06 09:20:43,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fa2b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:20:43, skipping insertion in model container [2025-02-06 09:20:43,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:43" (2/3) ... [2025-02-06 09:20:43,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fa2b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:20:43, skipping insertion in model container [2025-02-06 09:20:43,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:20:43" (3/3) ... [2025-02-06 09:20:43,641 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2025-02-06 09:20:43,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:20:43,657 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_02-funloop_norace.i that has 2 procedures, 157 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-02-06 09:20:43,658 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:20:43,733 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:20:43,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 159 transitions, 322 flow [2025-02-06 09:20:43,849 INFO L124 PetriNetUnfolderBase]: 3/158 cut-off events. [2025-02-06 09:20:43,852 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:20:43,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 3/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 129 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2025-02-06 09:20:43,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 159 transitions, 322 flow [2025-02-06 09:20:43,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 158 transitions, 319 flow [2025-02-06 09:20:43,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:20:43,880 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;@7103fdfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:20:43,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 09:20:43,912 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:20:43,913 INFO L124 PetriNetUnfolderBase]: 1/117 cut-off events. [2025-02-06 09:20:43,913 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:20:43,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:43,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:43,914 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:43,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:43,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1988920771, now seen corresponding path program 1 times [2025-02-06 09:20:43,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:43,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773066208] [2025-02-06 09:20:43,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:44,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-06 09:20:44,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-06 09:20:44,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:44,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:44,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:44,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773066208] [2025-02-06 09:20:44,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773066208] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:44,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:44,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:20:44,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749650331] [2025-02-06 09:20:44,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:44,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:20:44,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:44,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:20:44,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:20:44,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 159 [2025-02-06 09:20:44,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 158 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:44,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:44,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 159 [2025-02-06 09:20:44,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:44,355 INFO L124 PetriNetUnfolderBase]: 11/244 cut-off events. [2025-02-06 09:20:44,355 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:20:44,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 244 events. 11/244 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 411 event pairs, 6 based on Foata normal form. 1/230 useless extension candidates. Maximal degree in co-relation 179. Up to 26 conditions per place. [2025-02-06 09:20:44,357 INFO L140 encePairwiseOnDemand]: 156/159 looper letters, 10 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2025-02-06 09:20:44,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 345 flow [2025-02-06 09:20:44,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:20:44,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:20:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2025-02-06 09:20:44,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9580712788259959 [2025-02-06 09:20:44,371 INFO L175 Difference]: Start difference. First operand has 159 places, 158 transitions, 319 flow. Second operand 3 states and 457 transitions. [2025-02-06 09:20:44,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 345 flow [2025-02-06 09:20:44,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 159 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:20:44,379 INFO L231 Difference]: Finished difference. Result has 161 places, 159 transitions, 330 flow [2025-02-06 09:20:44,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=161, PETRI_TRANSITIONS=159} [2025-02-06 09:20:44,385 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 2 predicate places. [2025-02-06 09:20:44,385 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 159 transitions, 330 flow [2025-02-06 09:20:44,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:44,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:44,386 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:44,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:20:44,387 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:44,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash 433133351, now seen corresponding path program 1 times [2025-02-06 09:20:44,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:44,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293827742] [2025-02-06 09:20:44,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:44,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-06 09:20:44,433 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-06 09:20:44,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:44,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:44,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:44,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293827742] [2025-02-06 09:20:44,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293827742] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:44,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225458080] [2025-02-06 09:20:44,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:44,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:44,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:44,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:44,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:20:44,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-06 09:20:44,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-06 09:20:44,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:44,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:44,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:20:44,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:44,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:20:44,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:44,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225458080] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:20:44,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:20:44,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:20:44,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100058376] [2025-02-06 09:20:44,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:20:44,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:20:44,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:44,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:20:44,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:20:44,862 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 159 [2025-02-06 09:20:44,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 159 transitions, 330 flow. Second operand has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:44,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:44,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 159 [2025-02-06 09:20:44,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:44,979 INFO L124 PetriNetUnfolderBase]: 11/251 cut-off events. [2025-02-06 09:20:44,979 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:20:44,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 251 events. 11/251 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 400 event pairs, 6 based on Foata normal form. 2/238 useless extension candidates. Maximal degree in co-relation 217. Up to 26 conditions per place. [2025-02-06 09:20:44,983 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 14 selfloop transitions, 9 changer transitions 0/167 dead transitions. [2025-02-06 09:20:44,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 167 transitions, 394 flow [2025-02-06 09:20:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:20:44,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:20:44,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1330 transitions. [2025-02-06 09:20:44,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9294199860237596 [2025-02-06 09:20:44,991 INFO L175 Difference]: Start difference. First operand has 161 places, 159 transitions, 330 flow. Second operand 9 states and 1330 transitions. [2025-02-06 09:20:44,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 167 transitions, 394 flow [2025-02-06 09:20:44,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 167 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:20:44,994 INFO L231 Difference]: Finished difference. Result has 171 places, 165 transitions, 378 flow [2025-02-06 09:20:44,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=171, PETRI_TRANSITIONS=165} [2025-02-06 09:20:44,998 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 12 predicate places. [2025-02-06 09:20:44,998 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 165 transitions, 378 flow [2025-02-06 09:20:44,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:45,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:45,000 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:45,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:20:45,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:45,205 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:45,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash 188541095, now seen corresponding path program 2 times [2025-02-06 09:20:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:45,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773638722] [2025-02-06 09:20:45,206 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:20:45,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:45,225 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-02-06 09:20:45,237 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-02-06 09:20:45,237 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:20:45,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 09:20:45,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:45,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773638722] [2025-02-06 09:20:45,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773638722] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:45,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:45,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:20:45,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908192526] [2025-02-06 09:20:45,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:45,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:20:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:45,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:20:45,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:20:45,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 159 [2025-02-06 09:20:45,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 165 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:45,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:45,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 159 [2025-02-06 09:20:45,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:46,065 INFO L124 PetriNetUnfolderBase]: 150/828 cut-off events. [2025-02-06 09:20:46,066 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-06 09:20:46,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 828 events. 150/828 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4582 event pairs, 62 based on Foata normal form. 0/769 useless extension candidates. Maximal degree in co-relation 1045. Up to 240 conditions per place. [2025-02-06 09:20:46,073 INFO L140 encePairwiseOnDemand]: 148/159 looper letters, 30 selfloop transitions, 22 changer transitions 0/194 dead transitions. [2025-02-06 09:20:46,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 194 transitions, 540 flow [2025-02-06 09:20:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:20:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:20:46,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2025-02-06 09:20:46,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.910901467505241 [2025-02-06 09:20:46,077 INFO L175 Difference]: Start difference. First operand has 171 places, 165 transitions, 378 flow. Second operand 6 states and 869 transitions. [2025-02-06 09:20:46,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 194 transitions, 540 flow [2025-02-06 09:20:46,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 534 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 09:20:46,083 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 522 flow [2025-02-06 09:20:46,085 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2025-02-06 09:20:46,086 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 21 predicate places. [2025-02-06 09:20:46,086 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 522 flow [2025-02-06 09:20:46,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:46,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:46,087 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:46,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:20:46,088 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:46,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:46,091 INFO L85 PathProgramCache]: Analyzing trace with hash 525716816, now seen corresponding path program 1 times [2025-02-06 09:20:46,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:46,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810082563] [2025-02-06 09:20:46,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:46,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:46,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 09:20:46,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 09:20:46,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:46,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:46,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:46,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810082563] [2025-02-06 09:20:46,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810082563] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:46,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724233937] [2025-02-06 09:20:46,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:46,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:46,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:46,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:46,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:20:46,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 09:20:46,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 09:20:46,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:46,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:46,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:20:46,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:46,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:20:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:46,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724233937] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:20:46,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:20:46,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-06 09:20:46,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400729666] [2025-02-06 09:20:46,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:20:46,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 09:20:46,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:46,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 09:20:46,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:20:46,574 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 159 [2025-02-06 09:20:46,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 522 flow. Second operand has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:46,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:46,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 159 [2025-02-06 09:20:46,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:46,801 INFO L124 PetriNetUnfolderBase]: 58/571 cut-off events. [2025-02-06 09:20:46,801 INFO L125 PetriNetUnfolderBase]: For 50/53 co-relation queries the response was YES. [2025-02-06 09:20:46,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 571 events. 58/571 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2200 event pairs, 11 based on Foata normal form. 4/540 useless extension candidates. Maximal degree in co-relation 669. Up to 63 conditions per place. [2025-02-06 09:20:46,806 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 18 selfloop transitions, 21 changer transitions 0/204 dead transitions. [2025-02-06 09:20:46,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 204 transitions, 688 flow [2025-02-06 09:20:46,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 09:20:46,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 09:20:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3088 transitions. [2025-02-06 09:20:46,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9248277927523211 [2025-02-06 09:20:46,812 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 522 flow. Second operand 21 states and 3088 transitions. [2025-02-06 09:20:46,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 204 transitions, 688 flow [2025-02-06 09:20:46,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 204 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:20:46,816 INFO L231 Difference]: Finished difference. Result has 205 places, 199 transitions, 652 flow [2025-02-06 09:20:46,817 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=652, PETRI_PLACES=205, PETRI_TRANSITIONS=199} [2025-02-06 09:20:46,817 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2025-02-06 09:20:46,817 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 199 transitions, 652 flow [2025-02-06 09:20:46,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:46,819 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:46,819 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:46,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 09:20:47,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:47,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:47,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:47,021 INFO L85 PathProgramCache]: Analyzing trace with hash -367144880, now seen corresponding path program 2 times [2025-02-06 09:20:47,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:47,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018450529] [2025-02-06 09:20:47,022 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:20:47,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:47,033 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-02-06 09:20:47,040 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-02-06 09:20:47,041 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:20:47,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 09:20:47,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:47,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018450529] [2025-02-06 09:20:47,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018450529] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:47,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:47,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:20:47,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473030083] [2025-02-06 09:20:47,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:47,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:20:47,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:47,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:20:47,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:20:47,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 159 [2025-02-06 09:20:47,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 199 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:47,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:47,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 159 [2025-02-06 09:20:47,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:47,595 INFO L124 PetriNetUnfolderBase]: 206/1098 cut-off events. [2025-02-06 09:20:47,596 INFO L125 PetriNetUnfolderBase]: For 224/244 co-relation queries the response was YES. [2025-02-06 09:20:47,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1886 conditions, 1098 events. 206/1098 cut-off events. For 224/244 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6584 event pairs, 62 based on Foata normal form. 5/1041 useless extension candidates. Maximal degree in co-relation 1691. Up to 330 conditions per place. [2025-02-06 09:20:47,604 INFO L140 encePairwiseOnDemand]: 148/159 looper letters, 47 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2025-02-06 09:20:47,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 236 transitions, 922 flow [2025-02-06 09:20:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:20:47,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:20:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2025-02-06 09:20:47,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.910901467505241 [2025-02-06 09:20:47,607 INFO L175 Difference]: Start difference. First operand has 205 places, 199 transitions, 652 flow. Second operand 6 states and 869 transitions. [2025-02-06 09:20:47,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 236 transitions, 922 flow [2025-02-06 09:20:47,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 236 transitions, 898 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-06 09:20:47,615 INFO L231 Difference]: Finished difference. Result has 209 places, 228 transitions, 878 flow [2025-02-06 09:20:47,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=209, PETRI_TRANSITIONS=228} [2025-02-06 09:20:47,617 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 50 predicate places. [2025-02-06 09:20:47,617 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 228 transitions, 878 flow [2025-02-06 09:20:47,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:47,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:47,617 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:47,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:20:47,617 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:47,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash -129760487, now seen corresponding path program 1 times [2025-02-06 09:20:47,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:47,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864364258] [2025-02-06 09:20:47,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:47,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-06 09:20:47,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-06 09:20:47,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:47,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:47,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:47,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864364258] [2025-02-06 09:20:47,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864364258] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:47,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693802409] [2025-02-06 09:20:47,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:47,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:47,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:47,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:47,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:20:47,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-06 09:20:47,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-06 09:20:47,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:47,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:48,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 09:20:48,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:48,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:20:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:48,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693802409] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:20:48,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:20:48,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-06 09:20:48,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826737835] [2025-02-06 09:20:48,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:20:48,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 09:20:48,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:48,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 09:20:48,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:20:48,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 159 [2025-02-06 09:20:48,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 228 transitions, 878 flow. Second operand has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:48,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:48,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 159 [2025-02-06 09:20:48,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:48,667 INFO L124 PetriNetUnfolderBase]: 114/841 cut-off events. [2025-02-06 09:20:48,667 INFO L125 PetriNetUnfolderBase]: For 345/358 co-relation queries the response was YES. [2025-02-06 09:20:48,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 841 events. 114/841 cut-off events. For 345/358 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4317 event pairs, 14 based on Foata normal form. 8/811 useless extension candidates. Maximal degree in co-relation 1300. Up to 84 conditions per place. [2025-02-06 09:20:48,671 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 21 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2025-02-06 09:20:48,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 245 transitions, 1102 flow [2025-02-06 09:20:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:20:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-06 09:20:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4404 transitions. [2025-02-06 09:20:48,678 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9232704402515723 [2025-02-06 09:20:48,678 INFO L175 Difference]: Start difference. First operand has 209 places, 228 transitions, 878 flow. Second operand 30 states and 4404 transitions. [2025-02-06 09:20:48,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 245 transitions, 1102 flow [2025-02-06 09:20:48,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 245 transitions, 1102 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:20:48,686 INFO L231 Difference]: Finished difference. Result has 242 places, 238 transitions, 1030 flow [2025-02-06 09:20:48,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1030, PETRI_PLACES=242, PETRI_TRANSITIONS=238} [2025-02-06 09:20:48,687 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 83 predicate places. [2025-02-06 09:20:48,688 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 238 transitions, 1030 flow [2025-02-06 09:20:48,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:48,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:48,690 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:48,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:20:48,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:48,891 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:48,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1886927285, now seen corresponding path program 2 times [2025-02-06 09:20:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:48,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377396038] [2025-02-06 09:20:48,892 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:20:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:48,903 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-02-06 09:20:48,907 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-02-06 09:20:48,908 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:20:48,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:49,136 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:20:49,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:49,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377396038] [2025-02-06 09:20:49,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377396038] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:49,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:49,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:20:49,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787615822] [2025-02-06 09:20:49,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:49,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:20:49,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:49,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:20:49,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:20:49,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 159 [2025-02-06 09:20:49,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 238 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:49,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:49,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 159 [2025-02-06 09:20:49,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:49,481 INFO L124 PetriNetUnfolderBase]: 422/1653 cut-off events. [2025-02-06 09:20:49,481 INFO L125 PetriNetUnfolderBase]: For 1006/1048 co-relation queries the response was YES. [2025-02-06 09:20:49,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3663 conditions, 1653 events. 422/1653 cut-off events. For 1006/1048 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10549 event pairs, 107 based on Foata normal form. 12/1574 useless extension candidates. Maximal degree in co-relation 3386. Up to 718 conditions per place. [2025-02-06 09:20:49,492 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 76 selfloop transitions, 57 changer transitions 0/293 dead transitions. [2025-02-06 09:20:49,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 293 transitions, 1540 flow [2025-02-06 09:20:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:20:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:20:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2025-02-06 09:20:49,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8962264150943396 [2025-02-06 09:20:49,494 INFO L175 Difference]: Start difference. First operand has 242 places, 238 transitions, 1030 flow. Second operand 6 states and 855 transitions. [2025-02-06 09:20:49,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 293 transitions, 1540 flow [2025-02-06 09:20:49,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 293 transitions, 1494 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-02-06 09:20:49,507 INFO L231 Difference]: Finished difference. Result has 234 places, 285 transitions, 1482 flow [2025-02-06 09:20:49,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=234, PETRI_TRANSITIONS=285} [2025-02-06 09:20:49,509 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 75 predicate places. [2025-02-06 09:20:49,510 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 285 transitions, 1482 flow [2025-02-06 09:20:49,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:49,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:49,511 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:49,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:20:49,511 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:49,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2013589520, now seen corresponding path program 1 times [2025-02-06 09:20:49,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:49,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944505370] [2025-02-06 09:20:49,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:49,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:49,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 09:20:49,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 09:20:49,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:49,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:20:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944505370] [2025-02-06 09:20:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944505370] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:49,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:49,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:20:49,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454801135] [2025-02-06 09:20:49,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:49,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:20:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:49,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:20:49,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:20:49,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 159 [2025-02-06 09:20:49,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 285 transitions, 1482 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:49,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:49,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 159 [2025-02-06 09:20:49,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:50,246 INFO L124 PetriNetUnfolderBase]: 542/2093 cut-off events. [2025-02-06 09:20:50,246 INFO L125 PetriNetUnfolderBase]: For 2297/2353 co-relation queries the response was YES. [2025-02-06 09:20:50,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5260 conditions, 2093 events. 542/2093 cut-off events. For 2297/2353 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14590 event pairs, 113 based on Foata normal form. 13/2020 useless extension candidates. Maximal degree in co-relation 5000. Up to 894 conditions per place. [2025-02-06 09:20:50,260 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 113 selfloop transitions, 71 changer transitions 0/346 dead transitions. [2025-02-06 09:20:50,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 346 transitions, 2204 flow [2025-02-06 09:20:50,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:20:50,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:20:50,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2025-02-06 09:20:50,262 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8962264150943396 [2025-02-06 09:20:50,262 INFO L175 Difference]: Start difference. First operand has 234 places, 285 transitions, 1482 flow. Second operand 6 states and 855 transitions. [2025-02-06 09:20:50,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 346 transitions, 2204 flow [2025-02-06 09:20:50,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 346 transitions, 2140 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-02-06 09:20:50,276 INFO L231 Difference]: Finished difference. Result has 244 places, 338 transitions, 2094 flow [2025-02-06 09:20:50,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=1424, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2094, PETRI_PLACES=244, PETRI_TRANSITIONS=338} [2025-02-06 09:20:50,277 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 85 predicate places. [2025-02-06 09:20:50,278 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 338 transitions, 2094 flow [2025-02-06 09:20:50,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:50,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:50,278 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:50,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:20:50,278 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:50,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:50,279 INFO L85 PathProgramCache]: Analyzing trace with hash 476073459, now seen corresponding path program 1 times [2025-02-06 09:20:50,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:50,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424666475] [2025-02-06 09:20:50,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:50,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 09:20:50,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:20:50,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:50,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:20:50,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:50,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424666475] [2025-02-06 09:20:50,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424666475] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:50,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:50,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:20:50,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441298122] [2025-02-06 09:20:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:50,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:20:50,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:50,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:20:50,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:20:51,603 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:20:51,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 338 transitions, 2094 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:51,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:51,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:20:51,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:52,299 INFO L124 PetriNetUnfolderBase]: 1064/4158 cut-off events. [2025-02-06 09:20:52,300 INFO L125 PetriNetUnfolderBase]: For 5423/5551 co-relation queries the response was YES. [2025-02-06 09:20:52,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11502 conditions, 4158 events. 1064/4158 cut-off events. For 5423/5551 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 33116 event pairs, 151 based on Foata normal form. 45/4180 useless extension candidates. Maximal degree in co-relation 11225. Up to 580 conditions per place. [2025-02-06 09:20:52,331 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 68 selfloop transitions, 15 changer transitions 3/397 dead transitions. [2025-02-06 09:20:52,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 397 transitions, 2384 flow [2025-02-06 09:20:52,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:20:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:20:52,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2025-02-06 09:20:52,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923829489867225 [2025-02-06 09:20:52,334 INFO L175 Difference]: Start difference. First operand has 244 places, 338 transitions, 2094 flow. Second operand 9 states and 1277 transitions. [2025-02-06 09:20:52,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 397 transitions, 2384 flow [2025-02-06 09:20:52,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 397 transitions, 2302 flow, removed 41 selfloop flow, removed 0 redundant places. [2025-02-06 09:20:52,368 INFO L231 Difference]: Finished difference. Result has 259 places, 353 transitions, 2130 flow [2025-02-06 09:20:52,369 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=2012, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2130, PETRI_PLACES=259, PETRI_TRANSITIONS=353} [2025-02-06 09:20:52,369 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 100 predicate places. [2025-02-06 09:20:52,370 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 353 transitions, 2130 flow [2025-02-06 09:20:52,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:52,370 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:52,370 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:52,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 09:20:52,371 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:52,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1884975981, now seen corresponding path program 2 times [2025-02-06 09:20:52,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:52,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963583329] [2025-02-06 09:20:52,372 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:20:52,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:52,384 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-02-06 09:20:52,396 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-02-06 09:20:52,397 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:20:52,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:20:52,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:52,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963583329] [2025-02-06 09:20:52,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963583329] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:52,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:52,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:20:52,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080809293] [2025-02-06 09:20:52,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:52,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:20:52,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:52,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:20:52,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:20:53,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:20:53,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 353 transitions, 2130 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:53,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:53,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:20:53,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:54,654 INFO L124 PetriNetUnfolderBase]: 2043/7618 cut-off events. [2025-02-06 09:20:54,654 INFO L125 PetriNetUnfolderBase]: For 10660/10922 co-relation queries the response was YES. [2025-02-06 09:20:54,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22390 conditions, 7618 events. 2043/7618 cut-off events. For 10660/10922 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 68419 event pairs, 280 based on Foata normal form. 85/7653 useless extension candidates. Maximal degree in co-relation 22105. Up to 1204 conditions per place. [2025-02-06 09:20:54,773 INFO L140 encePairwiseOnDemand]: 145/159 looper letters, 107 selfloop transitions, 20 changer transitions 6/444 dead transitions. [2025-02-06 09:20:54,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 444 transitions, 2796 flow [2025-02-06 09:20:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:20:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:20:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1276 transitions. [2025-02-06 09:20:54,776 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8916841369671559 [2025-02-06 09:20:54,776 INFO L175 Difference]: Start difference. First operand has 259 places, 353 transitions, 2130 flow. Second operand 9 states and 1276 transitions. [2025-02-06 09:20:54,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 444 transitions, 2796 flow [2025-02-06 09:20:54,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 444 transitions, 2796 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:20:54,829 INFO L231 Difference]: Finished difference. Result has 274 places, 370 transitions, 2310 flow [2025-02-06 09:20:54,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2310, PETRI_PLACES=274, PETRI_TRANSITIONS=370} [2025-02-06 09:20:54,830 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 115 predicate places. [2025-02-06 09:20:54,831 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 370 transitions, 2310 flow [2025-02-06 09:20:54,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:54,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:54,832 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:54,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 09:20:54,832 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:54,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1125012511, now seen corresponding path program 3 times [2025-02-06 09:20:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:54,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899807130] [2025-02-06 09:20:54,833 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:20:54,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:54,848 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:20:54,861 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-02-06 09:20:54,862 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:20:54,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:20:55,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:55,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899807130] [2025-02-06 09:20:55,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899807130] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:55,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:55,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:20:55,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208823448] [2025-02-06 09:20:55,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:55,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:20:55,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:55,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:20:55,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:20:56,264 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:20:56,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 370 transitions, 2310 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:56,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:56,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:20:56,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:57,456 INFO L124 PetriNetUnfolderBase]: 2340/8659 cut-off events. [2025-02-06 09:20:57,456 INFO L125 PetriNetUnfolderBase]: For 14349/14746 co-relation queries the response was YES. [2025-02-06 09:20:57,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26794 conditions, 8659 events. 2340/8659 cut-off events. For 14349/14746 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 79094 event pairs, 290 based on Foata normal form. 94/8697 useless extension candidates. Maximal degree in co-relation 26501. Up to 1318 conditions per place. [2025-02-06 09:20:57,524 INFO L140 encePairwiseOnDemand]: 145/159 looper letters, 119 selfloop transitions, 22 changer transitions 2/454 dead transitions. [2025-02-06 09:20:57,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 454 transitions, 3094 flow [2025-02-06 09:20:57,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:20:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:20:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1281 transitions. [2025-02-06 09:20:57,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8951781970649895 [2025-02-06 09:20:57,526 INFO L175 Difference]: Start difference. First operand has 274 places, 370 transitions, 2310 flow. Second operand 9 states and 1281 transitions. [2025-02-06 09:20:57,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 454 transitions, 3094 flow [2025-02-06 09:20:57,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 454 transitions, 3056 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-02-06 09:20:57,592 INFO L231 Difference]: Finished difference. Result has 287 places, 382 transitions, 2479 flow [2025-02-06 09:20:57,593 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=2296, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2479, PETRI_PLACES=287, PETRI_TRANSITIONS=382} [2025-02-06 09:20:57,593 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 128 predicate places. [2025-02-06 09:20:57,593 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 382 transitions, 2479 flow [2025-02-06 09:20:57,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:57,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:57,594 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:57,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 09:20:57,594 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:57,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1620779797, now seen corresponding path program 4 times [2025-02-06 09:20:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:57,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745315895] [2025-02-06 09:20:57,595 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:20:57,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:57,606 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-02-06 09:20:57,715 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:20:57,718 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:20:57,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:20:58,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:58,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745315895] [2025-02-06 09:20:58,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745315895] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:58,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:58,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 09:20:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258676716] [2025-02-06 09:20:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:58,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 09:20:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:58,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 09:20:58,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:21:00,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 159 [2025-02-06 09:21:00,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 382 transitions, 2479 flow. Second operand has 15 states, 15 states have (on average 117.53333333333333) internal successors, (1763), 15 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:00,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:00,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 159 [2025-02-06 09:21:00,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:02,726 INFO L124 PetriNetUnfolderBase]: 4335/12704 cut-off events. [2025-02-06 09:21:02,726 INFO L125 PetriNetUnfolderBase]: For 34829/35231 co-relation queries the response was YES. [2025-02-06 09:21:02,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46187 conditions, 12704 events. 4335/12704 cut-off events. For 34829/35231 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 113798 event pairs, 834 based on Foata normal form. 151/12748 useless extension candidates. Maximal degree in co-relation 45888. Up to 3023 conditions per place. [2025-02-06 09:21:02,824 INFO L140 encePairwiseOnDemand]: 132/159 looper letters, 612 selfloop transitions, 143 changer transitions 6/931 dead transitions. [2025-02-06 09:21:02,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 931 transitions, 8571 flow [2025-02-06 09:21:02,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 09:21:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 09:21:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2255 transitions. [2025-02-06 09:21:02,832 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8342582315945246 [2025-02-06 09:21:02,832 INFO L175 Difference]: Start difference. First operand has 287 places, 382 transitions, 2479 flow. Second operand 17 states and 2255 transitions. [2025-02-06 09:21:02,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 931 transitions, 8571 flow [2025-02-06 09:21:02,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 931 transitions, 8426 flow, removed 8 selfloop flow, removed 3 redundant places. [2025-02-06 09:21:02,946 INFO L231 Difference]: Finished difference. Result has 313 places, 511 transitions, 4454 flow [2025-02-06 09:21:02,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4454, PETRI_PLACES=313, PETRI_TRANSITIONS=511} [2025-02-06 09:21:02,948 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 154 predicate places. [2025-02-06 09:21:02,949 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 511 transitions, 4454 flow [2025-02-06 09:21:02,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 117.53333333333333) internal successors, (1763), 15 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:02,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:02,949 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:02,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 09:21:02,950 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:02,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:02,951 INFO L85 PathProgramCache]: Analyzing trace with hash -579763471, now seen corresponding path program 1 times [2025-02-06 09:21:02,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:02,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154710058] [2025-02-06 09:21:02,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:02,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:02,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 09:21:02,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:02,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:02,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:03,215 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:03,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:03,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154710058] [2025-02-06 09:21:03,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154710058] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:03,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:03,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:03,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592551043] [2025-02-06 09:21:03,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:03,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:03,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:03,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:03,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:04,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:04,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 511 transitions, 4454 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:04,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:04,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:04,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:05,843 INFO L124 PetriNetUnfolderBase]: 3085/11186 cut-off events. [2025-02-06 09:21:05,843 INFO L125 PetriNetUnfolderBase]: For 34656/35415 co-relation queries the response was YES. [2025-02-06 09:21:05,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38952 conditions, 11186 events. 3085/11186 cut-off events. For 34656/35415 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 107972 event pairs, 310 based on Foata normal form. 143/11237 useless extension candidates. Maximal degree in co-relation 38641. Up to 1753 conditions per place. [2025-02-06 09:21:05,940 INFO L140 encePairwiseOnDemand]: 145/159 looper letters, 142 selfloop transitions, 42 changer transitions 1/594 dead transitions. [2025-02-06 09:21:05,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 594 transitions, 5518 flow [2025-02-06 09:21:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:21:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:21:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2025-02-06 09:21:05,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8972746331236897 [2025-02-06 09:21:05,941 INFO L175 Difference]: Start difference. First operand has 313 places, 511 transitions, 4454 flow. Second operand 9 states and 1284 transitions. [2025-02-06 09:21:05,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 594 transitions, 5518 flow [2025-02-06 09:21:06,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 594 transitions, 5414 flow, removed 23 selfloop flow, removed 2 redundant places. [2025-02-06 09:21:06,097 INFO L231 Difference]: Finished difference. Result has 325 places, 527 transitions, 4729 flow [2025-02-06 09:21:06,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=4393, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4729, PETRI_PLACES=325, PETRI_TRANSITIONS=527} [2025-02-06 09:21:06,098 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 166 predicate places. [2025-02-06 09:21:06,098 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 527 transitions, 4729 flow [2025-02-06 09:21:06,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:06,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:06,098 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:06,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 09:21:06,099 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:06,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:06,100 INFO L85 PathProgramCache]: Analyzing trace with hash -215192421, now seen corresponding path program 5 times [2025-02-06 09:21:06,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:06,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944646522] [2025-02-06 09:21:06,100 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:06,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:06,109 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:21:06,124 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:06,124 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 09:21:06,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:06,764 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-02-06 09:21:06,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:06,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944646522] [2025-02-06 09:21:06,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944646522] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:21:06,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898551533] [2025-02-06 09:21:06,764 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:06,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:21:06,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:21:06,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:21:06,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:21:06,832 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:21:06,886 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:06,886 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 09:21:06,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:06,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 09:21:06,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:21:07,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-06 09:21:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:07,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:21:07,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898551533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:07,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 09:21:07,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-02-06 09:21:07,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353465767] [2025-02-06 09:21:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:07,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:21:07,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:07,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:21:07,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:21:08,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:08,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 527 transitions, 4729 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:08,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:08,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:08,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:10,349 INFO L124 PetriNetUnfolderBase]: 3411/12435 cut-off events. [2025-02-06 09:21:10,350 INFO L125 PetriNetUnfolderBase]: For 42620/43369 co-relation queries the response was YES. [2025-02-06 09:21:10,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44350 conditions, 12435 events. 3411/12435 cut-off events. For 42620/43369 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 123195 event pairs, 334 based on Foata normal form. 148/12490 useless extension candidates. Maximal degree in co-relation 44032. Up to 2022 conditions per place. [2025-02-06 09:21:10,469 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 159 selfloop transitions, 44 changer transitions 2/614 dead transitions. [2025-02-06 09:21:10,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 614 transitions, 5929 flow [2025-02-06 09:21:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:21:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 09:21:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1416 transitions. [2025-02-06 09:21:10,470 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8905660377358491 [2025-02-06 09:21:10,470 INFO L175 Difference]: Start difference. First operand has 325 places, 527 transitions, 4729 flow. Second operand 10 states and 1416 transitions. [2025-02-06 09:21:10,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 614 transitions, 5929 flow [2025-02-06 09:21:10,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 614 transitions, 5816 flow, removed 24 selfloop flow, removed 2 redundant places. [2025-02-06 09:21:10,644 INFO L231 Difference]: Finished difference. Result has 338 places, 545 transitions, 5017 flow [2025-02-06 09:21:10,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=4651, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5017, PETRI_PLACES=338, PETRI_TRANSITIONS=545} [2025-02-06 09:21:10,645 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 179 predicate places. [2025-02-06 09:21:10,645 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 545 transitions, 5017 flow [2025-02-06 09:21:10,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:10,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:10,646 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:10,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:21:10,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-06 09:21:10,847 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:10,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:10,847 INFO L85 PathProgramCache]: Analyzing trace with hash -522124029, now seen corresponding path program 6 times [2025-02-06 09:21:10,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:10,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000584477] [2025-02-06 09:21:10,848 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:21:10,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:10,857 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:21:10,861 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-02-06 09:21:10,862 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:21:10,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:11,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:11,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000584477] [2025-02-06 09:21:11,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000584477] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:11,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:11,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:11,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319897709] [2025-02-06 09:21:11,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:11,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:11,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:11,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:11,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:11,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 545 transitions, 5017 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:11,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:11,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:11,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:13,950 INFO L124 PetriNetUnfolderBase]: 3770/13637 cut-off events. [2025-02-06 09:21:13,950 INFO L125 PetriNetUnfolderBase]: For 51778/52691 co-relation queries the response was YES. [2025-02-06 09:21:14,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49697 conditions, 13637 events. 3770/13637 cut-off events. For 51778/52691 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 137997 event pairs, 416 based on Foata normal form. 153/13668 useless extension candidates. Maximal degree in co-relation 49372. Up to 2177 conditions per place. [2025-02-06 09:21:14,106 INFO L140 encePairwiseOnDemand]: 145/159 looper letters, 158 selfloop transitions, 53 changer transitions 0/620 dead transitions. [2025-02-06 09:21:14,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 620 transitions, 6229 flow [2025-02-06 09:21:14,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:21:14,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:21:14,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1286 transitions. [2025-02-06 09:21:14,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8986722571628232 [2025-02-06 09:21:14,108 INFO L175 Difference]: Start difference. First operand has 338 places, 545 transitions, 5017 flow. Second operand 9 states and 1286 transitions. [2025-02-06 09:21:14,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 620 transitions, 6229 flow [2025-02-06 09:21:14,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 620 transitions, 6141 flow, removed 19 selfloop flow, removed 3 redundant places. [2025-02-06 09:21:14,352 INFO L231 Difference]: Finished difference. Result has 350 places, 568 transitions, 5486 flow [2025-02-06 09:21:14,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=4951, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5486, PETRI_PLACES=350, PETRI_TRANSITIONS=568} [2025-02-06 09:21:14,353 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 191 predicate places. [2025-02-06 09:21:14,353 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 568 transitions, 5486 flow [2025-02-06 09:21:14,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:14,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:14,354 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:14,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 09:21:14,354 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:14,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:14,355 INFO L85 PathProgramCache]: Analyzing trace with hash -702967217, now seen corresponding path program 7 times [2025-02-06 09:21:14,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:14,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958129536] [2025-02-06 09:21:14,355 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:21:14,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:14,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 09:21:14,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:14,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:14,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:14,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:14,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958129536] [2025-02-06 09:21:14,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958129536] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:14,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:14,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:14,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979063597] [2025-02-06 09:21:14,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:14,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:14,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:14,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:14,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:15,039 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:15,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 568 transitions, 5486 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:15,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:15,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:15,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:17,725 INFO L124 PetriNetUnfolderBase]: 4376/15596 cut-off events. [2025-02-06 09:21:17,725 INFO L125 PetriNetUnfolderBase]: For 65697/66731 co-relation queries the response was YES. [2025-02-06 09:21:17,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58157 conditions, 15596 events. 4376/15596 cut-off events. For 65697/66731 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 163209 event pairs, 427 based on Foata normal form. 184/15644 useless extension candidates. Maximal degree in co-relation 57826. Up to 2559 conditions per place. [2025-02-06 09:21:17,916 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 185 selfloop transitions, 58 changer transitions 0/652 dead transitions. [2025-02-06 09:21:17,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 652 transitions, 6901 flow [2025-02-06 09:21:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:21:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:21:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2025-02-06 09:21:17,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9000698812019566 [2025-02-06 09:21:17,918 INFO L175 Difference]: Start difference. First operand has 350 places, 568 transitions, 5486 flow. Second operand 9 states and 1288 transitions. [2025-02-06 09:21:17,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 652 transitions, 6901 flow [2025-02-06 09:21:18,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 652 transitions, 6803 flow, removed 49 selfloop flow, removed 0 redundant places. [2025-02-06 09:21:18,242 INFO L231 Difference]: Finished difference. Result has 365 places, 586 transitions, 5906 flow [2025-02-06 09:21:18,244 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=5388, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5906, PETRI_PLACES=365, PETRI_TRANSITIONS=586} [2025-02-06 09:21:18,244 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 206 predicate places. [2025-02-06 09:21:18,244 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 586 transitions, 5906 flow [2025-02-06 09:21:18,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:18,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:18,245 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:18,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 09:21:18,245 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:18,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:18,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1403960185, now seen corresponding path program 8 times [2025-02-06 09:21:18,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:18,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967371522] [2025-02-06 09:21:18,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:18,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:18,257 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-02-06 09:21:18,263 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-02-06 09:21:18,263 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:18,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:18,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:18,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967371522] [2025-02-06 09:21:18,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967371522] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:18,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:18,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:18,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589720208] [2025-02-06 09:21:18,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:18,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:18,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:18,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:18,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:19,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:19,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 586 transitions, 5906 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:19,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:19,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:19,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:21,521 INFO L124 PetriNetUnfolderBase]: 4386/15633 cut-off events. [2025-02-06 09:21:21,521 INFO L125 PetriNetUnfolderBase]: For 72248/73424 co-relation queries the response was YES. [2025-02-06 09:21:21,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59365 conditions, 15633 events. 4386/15633 cut-off events. For 72248/73424 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 163949 event pairs, 378 based on Foata normal form. 281/15799 useless extension candidates. Maximal degree in co-relation 59026. Up to 2511 conditions per place. [2025-02-06 09:21:21,732 INFO L140 encePairwiseOnDemand]: 143/159 looper letters, 193 selfloop transitions, 75 changer transitions 2/679 dead transitions. [2025-02-06 09:21:21,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 679 transitions, 7320 flow [2025-02-06 09:21:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:21:21,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:21:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1279 transitions. [2025-02-06 09:21:21,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.893780573025856 [2025-02-06 09:21:21,733 INFO L175 Difference]: Start difference. First operand has 365 places, 586 transitions, 5906 flow. Second operand 9 states and 1279 transitions. [2025-02-06 09:21:21,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 679 transitions, 7320 flow [2025-02-06 09:21:22,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 679 transitions, 7230 flow, removed 45 selfloop flow, removed 0 redundant places. [2025-02-06 09:21:22,370 INFO L231 Difference]: Finished difference. Result has 377 places, 598 transitions, 6178 flow [2025-02-06 09:21:22,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=5818, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6178, PETRI_PLACES=377, PETRI_TRANSITIONS=598} [2025-02-06 09:21:22,370 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 218 predicate places. [2025-02-06 09:21:22,370 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 598 transitions, 6178 flow [2025-02-06 09:21:22,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:22,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:22,371 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:22,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 09:21:22,371 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:22,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:22,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1762530997, now seen corresponding path program 9 times [2025-02-06 09:21:22,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:22,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245371265] [2025-02-06 09:21:22,372 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:21:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:22,381 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:21:22,384 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-02-06 09:21:22,385 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:21:22,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:22,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:22,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245371265] [2025-02-06 09:21:22,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245371265] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:22,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:22,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:22,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150213566] [2025-02-06 09:21:22,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:22,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:22,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:22,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:22,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:23,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:23,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 598 transitions, 6178 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:23,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:23,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:23,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:25,897 INFO L124 PetriNetUnfolderBase]: 4105/14817 cut-off events. [2025-02-06 09:21:25,897 INFO L125 PetriNetUnfolderBase]: For 73672/74743 co-relation queries the response was YES. [2025-02-06 09:21:26,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57107 conditions, 14817 events. 4105/14817 cut-off events. For 73672/74743 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 153497 event pairs, 370 based on Foata normal form. 244/14955 useless extension candidates. Maximal degree in co-relation 56763. Up to 2341 conditions per place. [2025-02-06 09:21:26,051 INFO L140 encePairwiseOnDemand]: 145/159 looper letters, 194 selfloop transitions, 71 changer transitions 2/676 dead transitions. [2025-02-06 09:21:26,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 676 transitions, 7478 flow [2025-02-06 09:21:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:21:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:21:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2025-02-06 09:21:26,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923829489867225 [2025-02-06 09:21:26,054 INFO L175 Difference]: Start difference. First operand has 377 places, 598 transitions, 6178 flow. Second operand 9 states and 1277 transitions. [2025-02-06 09:21:26,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 676 transitions, 7478 flow [2025-02-06 09:21:26,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 676 transitions, 7262 flow, removed 52 selfloop flow, removed 4 redundant places. [2025-02-06 09:21:26,379 INFO L231 Difference]: Finished difference. Result has 384 places, 601 transitions, 6210 flow [2025-02-06 09:21:26,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=5974, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6210, PETRI_PLACES=384, PETRI_TRANSITIONS=601} [2025-02-06 09:21:26,380 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 225 predicate places. [2025-02-06 09:21:26,380 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 601 transitions, 6210 flow [2025-02-06 09:21:26,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:26,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:26,380 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:26,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 09:21:26,380 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:26,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:26,381 INFO L85 PathProgramCache]: Analyzing trace with hash -892664877, now seen corresponding path program 10 times [2025-02-06 09:21:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:26,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364324897] [2025-02-06 09:21:26,382 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:21:26,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:26,393 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-02-06 09:21:26,407 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:26,407 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:21:26,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:26,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:26,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364324897] [2025-02-06 09:21:26,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364324897] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:26,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:26,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 09:21:26,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837987320] [2025-02-06 09:21:26,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:26,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 09:21:26,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:26,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 09:21:26,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:21:27,782 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 159 [2025-02-06 09:21:27,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 601 transitions, 6210 flow. Second operand has 15 states, 15 states have (on average 118.46666666666667) internal successors, (1777), 15 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:27,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:27,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 159 [2025-02-06 09:21:27,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:32,629 INFO L124 PetriNetUnfolderBase]: 6452/19074 cut-off events. [2025-02-06 09:21:32,629 INFO L125 PetriNetUnfolderBase]: For 127202/128477 co-relation queries the response was YES. [2025-02-06 09:21:32,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85166 conditions, 19074 events. 6452/19074 cut-off events. For 127202/128477 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 188051 event pairs, 1066 based on Foata normal form. 453/19393 useless extension candidates. Maximal degree in co-relation 84819. Up to 5840 conditions per place. [2025-02-06 09:21:32,897 INFO L140 encePairwiseOnDemand]: 132/159 looper letters, 745 selfloop transitions, 315 changer transitions 3/1235 dead transitions. [2025-02-06 09:21:32,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 1235 transitions, 15081 flow [2025-02-06 09:21:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 09:21:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 09:21:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2615 transitions. [2025-02-06 09:21:32,900 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8223270440251572 [2025-02-06 09:21:32,900 INFO L175 Difference]: Start difference. First operand has 384 places, 601 transitions, 6210 flow. Second operand 20 states and 2615 transitions. [2025-02-06 09:21:32,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 1235 transitions, 15081 flow [2025-02-06 09:21:33,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1235 transitions, 14855 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-02-06 09:21:33,375 INFO L231 Difference]: Finished difference. Result has 413 places, 796 transitions, 9926 flow [2025-02-06 09:21:33,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=6078, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=9926, PETRI_PLACES=413, PETRI_TRANSITIONS=796} [2025-02-06 09:21:33,376 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 254 predicate places. [2025-02-06 09:21:33,376 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 796 transitions, 9926 flow [2025-02-06 09:21:33,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 118.46666666666667) internal successors, (1777), 15 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:33,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:33,377 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:33,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 09:21:33,377 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:33,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:33,378 INFO L85 PathProgramCache]: Analyzing trace with hash 663405053, now seen corresponding path program 11 times [2025-02-06 09:21:33,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:33,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760677330] [2025-02-06 09:21:33,382 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:33,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:33,394 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:21:33,404 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:33,404 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 09:21:33,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-02-06 09:21:33,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:33,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760677330] [2025-02-06 09:21:33,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760677330] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:21:33,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770031498] [2025-02-06 09:21:33,843 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:33,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:21:33,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:21:33,844 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:21:33,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:21:34,021 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:21:34,069 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:34,069 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-06 09:21:34,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:34,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 09:21:34,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:21:34,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-06 09:21:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:34,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:21:34,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770031498] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:34,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 09:21:34,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-02-06 09:21:34,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117452818] [2025-02-06 09:21:34,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:34,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:21:34,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:34,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:21:34,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:21:35,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:35,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 796 transitions, 9926 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:35,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:35,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:35,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:38,666 INFO L124 PetriNetUnfolderBase]: 4570/16424 cut-off events. [2025-02-06 09:21:38,666 INFO L125 PetriNetUnfolderBase]: For 104535/105928 co-relation queries the response was YES. [2025-02-06 09:21:38,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67594 conditions, 16424 events. 4570/16424 cut-off events. For 104535/105928 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 173808 event pairs, 403 based on Foata normal form. 222/16507 useless extension candidates. Maximal degree in co-relation 67232. Up to 2632 conditions per place. [2025-02-06 09:21:38,857 INFO L140 encePairwiseOnDemand]: 143/159 looper letters, 217 selfloop transitions, 91 changer transitions 1/874 dead transitions. [2025-02-06 09:21:38,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 874 transitions, 11471 flow [2025-02-06 09:21:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:21:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 09:21:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1420 transitions. [2025-02-06 09:21:38,858 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8930817610062893 [2025-02-06 09:21:38,858 INFO L175 Difference]: Start difference. First operand has 413 places, 796 transitions, 9926 flow. Second operand 10 states and 1420 transitions. [2025-02-06 09:21:38,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 874 transitions, 11471 flow [2025-02-06 09:21:39,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 874 transitions, 11166 flow, removed 122 selfloop flow, removed 1 redundant places. [2025-02-06 09:21:39,440 INFO L231 Difference]: Finished difference. Result has 425 places, 808 transitions, 10161 flow [2025-02-06 09:21:39,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=9727, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10161, PETRI_PLACES=425, PETRI_TRANSITIONS=808} [2025-02-06 09:21:39,441 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 266 predicate places. [2025-02-06 09:21:39,441 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 808 transitions, 10161 flow [2025-02-06 09:21:39,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:39,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:39,442 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:39,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 09:21:39,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:21:39,642 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:39,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:39,643 INFO L85 PathProgramCache]: Analyzing trace with hash 394643653, now seen corresponding path program 12 times [2025-02-06 09:21:39,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:39,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599626122] [2025-02-06 09:21:39,644 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:21:39,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:39,652 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-02-06 09:21:39,658 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-02-06 09:21:39,659 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:21:39,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:39,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:39,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599626122] [2025-02-06 09:21:39,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599626122] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:39,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:39,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:39,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370356657] [2025-02-06 09:21:39,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:39,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:39,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:39,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:40,257 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:40,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 808 transitions, 10161 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:40,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:40,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:40,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:44,046 INFO L124 PetriNetUnfolderBase]: 4450/16066 cut-off events. [2025-02-06 09:21:44,046 INFO L125 PetriNetUnfolderBase]: For 100929/102287 co-relation queries the response was YES. [2025-02-06 09:21:44,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65866 conditions, 16066 events. 4450/16066 cut-off events. For 100929/102287 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 169387 event pairs, 379 based on Foata normal form. 280/16215 useless extension candidates. Maximal degree in co-relation 65498. Up to 2545 conditions per place. [2025-02-06 09:21:44,223 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 197 selfloop transitions, 105 changer transitions 1/813 dead transitions. [2025-02-06 09:21:44,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 813 transitions, 10529 flow [2025-02-06 09:21:44,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:21:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:21:44,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1280 transitions. [2025-02-06 09:21:44,224 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8944793850454228 [2025-02-06 09:21:44,224 INFO L175 Difference]: Start difference. First operand has 425 places, 808 transitions, 10161 flow. Second operand 9 states and 1280 transitions. [2025-02-06 09:21:44,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 813 transitions, 10529 flow [2025-02-06 09:21:44,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 813 transitions, 10248 flow, removed 49 selfloop flow, removed 7 redundant places. [2025-02-06 09:21:44,769 INFO L231 Difference]: Finished difference. Result has 424 places, 745 transitions, 9178 flow [2025-02-06 09:21:44,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=8908, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9178, PETRI_PLACES=424, PETRI_TRANSITIONS=745} [2025-02-06 09:21:44,769 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 265 predicate places. [2025-02-06 09:21:44,769 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 745 transitions, 9178 flow [2025-02-06 09:21:44,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:44,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:44,770 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:44,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 09:21:44,770 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:44,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:44,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1505031011, now seen corresponding path program 13 times [2025-02-06 09:21:44,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:44,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898140203] [2025-02-06 09:21:44,771 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:21:44,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:44,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 09:21:44,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 09:21:44,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:44,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:44,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:44,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898140203] [2025-02-06 09:21:44,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898140203] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:44,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:44,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:44,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810478968] [2025-02-06 09:21:44,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:44,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:44,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:44,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:45,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:45,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 745 transitions, 9178 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:45,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:45,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:45,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:48,872 INFO L124 PetriNetUnfolderBase]: 4432/16061 cut-off events. [2025-02-06 09:21:48,872 INFO L125 PetriNetUnfolderBase]: For 95673/96738 co-relation queries the response was YES. [2025-02-06 09:21:48,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65285 conditions, 16061 events. 4432/16061 cut-off events. For 95673/96738 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 169490 event pairs, 398 based on Foata normal form. 189/16122 useless extension candidates. Maximal degree in co-relation 64918. Up to 2556 conditions per place. [2025-02-06 09:21:49,033 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 208 selfloop transitions, 94 changer transitions 1/813 dead transitions. [2025-02-06 09:21:49,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 813 transitions, 10489 flow [2025-02-06 09:21:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:21:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:21:49,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1283 transitions. [2025-02-06 09:21:49,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.896575821104123 [2025-02-06 09:21:49,034 INFO L175 Difference]: Start difference. First operand has 424 places, 745 transitions, 9178 flow. Second operand 9 states and 1283 transitions. [2025-02-06 09:21:49,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 813 transitions, 10489 flow [2025-02-06 09:21:49,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 813 transitions, 10269 flow, removed 6 selfloop flow, removed 8 redundant places. [2025-02-06 09:21:49,486 INFO L231 Difference]: Finished difference. Result has 428 places, 753 transitions, 9362 flow [2025-02-06 09:21:49,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=8977, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9362, PETRI_PLACES=428, PETRI_TRANSITIONS=753} [2025-02-06 09:21:49,487 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 269 predicate places. [2025-02-06 09:21:49,487 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 753 transitions, 9362 flow [2025-02-06 09:21:49,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:49,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:49,488 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:49,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 09:21:49,488 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:21:49,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:49,489 INFO L85 PathProgramCache]: Analyzing trace with hash 687431925, now seen corresponding path program 14 times [2025-02-06 09:21:49,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:49,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834074910] [2025-02-06 09:21:49,489 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:49,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:49,498 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-02-06 09:21:49,502 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-02-06 09:21:49,502 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:49,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-06 09:21:49,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:49,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834074910] [2025-02-06 09:21:49,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834074910] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:49,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:49,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 09:21:49,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828009183] [2025-02-06 09:21:49,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:49,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 09:21:49,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:49,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 09:21:49,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:21:50,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 159 [2025-02-06 09:21:50,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 753 transitions, 9362 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:21:50,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:50,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 159 [2025-02-06 09:21:50,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand