./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-lit/sssc12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-lit/sssc12.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94001a9ab0492f7774a7e81f183179cf0060947b701e48f51b2989eec22ae051 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:23:32,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:23:33,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:23:33,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:23:33,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:23:33,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:23:33,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:23:33,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:23:33,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:23:33,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:23:33,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:23:33,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:23:33,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:23:33,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:23:33,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:23:33,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:23:33,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:23:33,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:23:33,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:23:33,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:23:33,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:23:33,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:23:33,062 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:23:33,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:23:33,062 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:23:33,062 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:23:33,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:23:33,063 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:23:33,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:23:33,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:23:33,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:23:33,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:23:33,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:23:33,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:23:33,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:23:33,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:23:33,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:23:33,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:23:33,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:23:33,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:23:33,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:23:33,067 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94001a9ab0492f7774a7e81f183179cf0060947b701e48f51b2989eec22ae051 [2024-11-12 12:23:33,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:23:33,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:23:33,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:23:33,311 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:23:33,311 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:23:33,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/sssc12.i [2024-11-12 12:23:34,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:23:34,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:23:34,946 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/sssc12.i [2024-11-12 12:23:34,964 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a66651e1/65765145c908426fa92676e25b6c86a1/FLAG8c761ec3e [2024-11-12 12:23:34,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a66651e1/65765145c908426fa92676e25b6c86a1 [2024-11-12 12:23:34,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:23:34,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:23:34,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:23:34,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:23:34,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:23:34,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:23:34" (1/1) ... [2024-11-12 12:23:34,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363a2c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:34, skipping insertion in model container [2024-11-12 12:23:34,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:23:34" (1/1) ... [2024-11-12 12:23:35,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:23:35,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:23:35,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:23:35,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:23:35,565 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:23:35,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35 WrapperNode [2024-11-12 12:23:35,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:23:35,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:23:35,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:23:35,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:23:35,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,610 INFO L138 Inliner]: procedures = 272, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 124 [2024-11-12 12:23:35,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:23:35,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:23:35,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:23:35,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:23:35,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:23:35,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:23:35,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:23:35,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:23:35,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (1/1) ... [2024-11-12 12:23:35,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:23:35,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:23:35,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:23:35,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:23:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-11-12 12:23:35,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-11-12 12:23:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:23:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:23:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:23:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 12:23:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:23:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:23:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:23:35,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:23:35,716 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:23:35,840 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:23:35,842 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:23:36,030 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:23:36,031 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:23:36,056 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:23:36,056 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 12:23:36,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:23:36 BoogieIcfgContainer [2024-11-12 12:23:36,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:23:36,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:23:36,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:23:36,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:23:36,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:23:34" (1/3) ... [2024-11-12 12:23:36,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb962cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:23:36, skipping insertion in model container [2024-11-12 12:23:36,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:23:35" (2/3) ... [2024-11-12 12:23:36,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb962cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:23:36, skipping insertion in model container [2024-11-12 12:23:36,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:23:36" (3/3) ... [2024-11-12 12:23:36,063 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12.i [2024-11-12 12:23:36,076 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:23:36,076 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-12 12:23:36,077 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:23:36,137 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:23:36,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 300 flow [2024-11-12 12:23:36,216 INFO L124 PetriNetUnfolderBase]: 10/158 cut-off events. [2024-11-12 12:23:36,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:23:36,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 10/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 151 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2024-11-12 12:23:36,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 148 transitions, 300 flow [2024-11-12 12:23:36,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 148 transitions, 300 flow [2024-11-12 12:23:36,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:23:36,242 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;@4f11aad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:23:36,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-12 12:23:36,246 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:23:36,247 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-12 12:23:36,247 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:23:36,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:36,248 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] [2024-11-12 12:23:36,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:23:36,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:36,254 INFO L85 PathProgramCache]: Analyzing trace with hash -539149206, now seen corresponding path program 1 times [2024-11-12 12:23:36,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:36,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321141649] [2024-11-12 12:23:36,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:36,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:36,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:36,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321141649] [2024-11-12 12:23:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321141649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:36,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:36,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:36,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174447743] [2024-11-12 12:23:36,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:36,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:36,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:36,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:36,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:36,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 148 [2024-11-12 12:23:36,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 148 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:36,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:36,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 148 [2024-11-12 12:23:36,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:36,656 INFO L124 PetriNetUnfolderBase]: 4/139 cut-off events. [2024-11-12 12:23:36,656 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:23:36,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 139 events. 4/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 12/132 useless extension candidates. Maximal degree in co-relation 77. Up to 11 conditions per place. [2024-11-12 12:23:36,659 INFO L140 encePairwiseOnDemand]: 139/148 looper letters, 10 selfloop transitions, 2 changer transitions 1/135 dead transitions. [2024-11-12 12:23:36,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 135 transitions, 298 flow [2024-11-12 12:23:36,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2024-11-12 12:23:36,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9009009009009009 [2024-11-12 12:23:36,679 INFO L175 Difference]: Start difference. First operand has 142 places, 148 transitions, 300 flow. Second operand 3 states and 400 transitions. [2024-11-12 12:23:36,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 135 transitions, 298 flow [2024-11-12 12:23:36,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:23:36,687 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 276 flow [2024-11-12 12:23:36,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2024-11-12 12:23:36,693 INFO L279 CegarLoopForPetriNet]: 142 programPoint places, -6 predicate places. [2024-11-12 12:23:36,693 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 276 flow [2024-11-12 12:23:36,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:36,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:36,695 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] [2024-11-12 12:23:36,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:23:36,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:23:36,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:36,698 INFO L85 PathProgramCache]: Analyzing trace with hash 937370990, now seen corresponding path program 1 times [2024-11-12 12:23:36,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:36,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015239241] [2024-11-12 12:23:36,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:36,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:36,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:36,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015239241] [2024-11-12 12:23:36,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015239241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:36,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:36,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:36,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123274044] [2024-11-12 12:23:36,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:36,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:36,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:36,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 148 [2024-11-12 12:23:36,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:36,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:36,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 148 [2024-11-12 12:23:36,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:36,860 INFO L124 PetriNetUnfolderBase]: 4/137 cut-off events. [2024-11-12 12:23:36,860 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:23:36,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 137 events. 4/137 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 127. Up to 12 conditions per place. [2024-11-12 12:23:36,861 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 11 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2024-11-12 12:23:36,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 133 transitions, 300 flow [2024-11-12 12:23:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:36,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-12 12:23:36,867 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-11-12 12:23:36,867 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 276 flow. Second operand 3 states and 392 transitions. [2024-11-12 12:23:36,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 133 transitions, 300 flow [2024-11-12 12:23:36,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 133 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:36,870 INFO L231 Difference]: Finished difference. Result has 134 places, 133 transitions, 274 flow [2024-11-12 12:23:36,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2024-11-12 12:23:36,871 INFO L279 CegarLoopForPetriNet]: 142 programPoint places, -8 predicate places. [2024-11-12 12:23:36,871 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 274 flow [2024-11-12 12:23:36,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:36,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:36,872 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] [2024-11-12 12:23:36,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:23:36,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:23:36,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1079100034, now seen corresponding path program 1 times [2024-11-12 12:23:36,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:36,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201789612] [2024-11-12 12:23:36,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:36,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:36,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:36,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201789612] [2024-11-12 12:23:36,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201789612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:36,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:36,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:36,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307503166] [2024-11-12 12:23:36,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:36,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:36,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:36,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:36,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:36,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 148 [2024-11-12 12:23:36,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:36,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:36,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 148 [2024-11-12 12:23:36,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:36,992 INFO L124 PetriNetUnfolderBase]: 4/132 cut-off events. [2024-11-12 12:23:36,993 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 12:23:36,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 132 events. 4/132 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 115. Up to 13 conditions per place. [2024-11-12 12:23:36,994 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 13 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2024-11-12 12:23:36,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 128 transitions, 292 flow [2024-11-12 12:23:36,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:36,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2024-11-12 12:23:36,997 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8671171171171171 [2024-11-12 12:23:36,997 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 274 flow. Second operand 3 states and 385 transitions. [2024-11-12 12:23:36,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 128 transitions, 292 flow [2024-11-12 12:23:36,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 128 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:37,000 INFO L231 Difference]: Finished difference. Result has 129 places, 128 transitions, 262 flow [2024-11-12 12:23:37,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=129, PETRI_TRANSITIONS=128} [2024-11-12 12:23:37,001 INFO L279 CegarLoopForPetriNet]: 142 programPoint places, -13 predicate places. [2024-11-12 12:23:37,001 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 128 transitions, 262 flow [2024-11-12 12:23:37,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,002 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:37,002 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] [2024-11-12 12:23:37,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:23:37,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:23:37,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1376072315, now seen corresponding path program 1 times [2024-11-12 12:23:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:37,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286796450] [2024-11-12 12:23:37,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:37,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:37,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286796450] [2024-11-12 12:23:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286796450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:37,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:37,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:37,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644478252] [2024-11-12 12:23:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:37,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:37,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:37,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 148 [2024-11-12 12:23:37,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 128 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:37,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 148 [2024-11-12 12:23:37,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:37,118 INFO L124 PetriNetUnfolderBase]: 4/131 cut-off events. [2024-11-12 12:23:37,119 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:23:37,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 131 events. 4/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2024-11-12 12:23:37,120 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 7 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2024-11-12 12:23:37,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 278 flow [2024-11-12 12:23:37,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:37,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2024-11-12 12:23:37,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9009009009009009 [2024-11-12 12:23:37,122 INFO L175 Difference]: Start difference. First operand has 129 places, 128 transitions, 262 flow. Second operand 3 states and 400 transitions. [2024-11-12 12:23:37,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 278 flow [2024-11-12 12:23:37,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 127 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:23:37,127 INFO L231 Difference]: Finished difference. Result has 129 places, 127 transitions, 263 flow [2024-11-12 12:23:37,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=129, PETRI_TRANSITIONS=127} [2024-11-12 12:23:37,129 INFO L279 CegarLoopForPetriNet]: 142 programPoint places, -13 predicate places. [2024-11-12 12:23:37,129 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 127 transitions, 263 flow [2024-11-12 12:23:37,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:37,130 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:23:37,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:23:37,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:23:37,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:37,133 INFO L85 PathProgramCache]: Analyzing trace with hash 257726207, now seen corresponding path program 1 times [2024-11-12 12:23:37,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:37,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775014372] [2024-11-12 12:23:37,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:37,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:37,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:37,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775014372] [2024-11-12 12:23:37,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775014372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:37,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:37,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:23:37,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23079676] [2024-11-12 12:23:37,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:37,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:23:37,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:23:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:23:37,305 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 148 [2024-11-12 12:23:37,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 127 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:37,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 148 [2024-11-12 12:23:37,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:37,350 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2024-11-12 12:23:37,350 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:23:37,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 134 events. 3/134 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 122. Up to 15 conditions per place. [2024-11-12 12:23:37,351 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 14 selfloop transitions, 0 changer transitions 4/130 dead transitions. [2024-11-12 12:23:37,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 130 transitions, 305 flow [2024-11-12 12:23:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 12:23:37,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 12:23:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 639 transitions. [2024-11-12 12:23:37,353 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8635135135135135 [2024-11-12 12:23:37,353 INFO L175 Difference]: Start difference. First operand has 129 places, 127 transitions, 263 flow. Second operand 5 states and 639 transitions. [2024-11-12 12:23:37,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 130 transitions, 305 flow [2024-11-12 12:23:37,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 130 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:37,356 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 263 flow [2024-11-12 12:23:37,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=263, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-11-12 12:23:37,357 INFO L279 CegarLoopForPetriNet]: 142 programPoint places, -8 predicate places. [2024-11-12 12:23:37,357 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 263 flow [2024-11-12 12:23:37,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:37,358 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:23:37,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:23:37,359 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:23:37,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:37,359 INFO L85 PathProgramCache]: Analyzing trace with hash -101692708, now seen corresponding path program 1 times [2024-11-12 12:23:37,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:37,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708491360] [2024-11-12 12:23:37,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:37,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:23:37,389 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:23:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:23:37,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:23:37,455 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:23:37,457 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-12 12:23:37,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-12 12:23:37,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-12 12:23:37,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-12 12:23:37,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-12 12:23:37,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-12 12:23:37,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-12 12:23:37,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-12 12:23:37,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-12 12:23:37,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-12 12:23:37,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-12 12:23:37,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-12 12:23:37,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-12 12:23:37,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-12 12:23:37,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-12 12:23:37,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-12 12:23:37,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-12 12:23:37,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-12 12:23:37,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-12 12:23:37,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-12 12:23:37,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-12 12:23:37,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-12 12:23:37,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-12 12:23:37,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:23:37,463 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-12 12:23:37,466 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:23:37,466 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:23:37,512 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:23:37,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 219 transitions, 448 flow [2024-11-12 12:23:37,550 INFO L124 PetriNetUnfolderBase]: 17/241 cut-off events. [2024-11-12 12:23:37,551 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 12:23:37,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 241 events. 17/241 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 519 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 159. Up to 6 conditions per place. [2024-11-12 12:23:37,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 219 transitions, 448 flow [2024-11-12 12:23:37,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 219 transitions, 448 flow [2024-11-12 12:23:37,558 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:23:37,559 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;@4f11aad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:23:37,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-12 12:23:37,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:23:37,561 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-12 12:23:37,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:23:37,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:37,561 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] [2024-11-12 12:23:37,561 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:23:37,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:37,562 INFO L85 PathProgramCache]: Analyzing trace with hash -169305051, now seen corresponding path program 1 times [2024-11-12 12:23:37,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:37,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918539428] [2024-11-12 12:23:37,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:37,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:37,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:37,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918539428] [2024-11-12 12:23:37,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918539428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:37,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:37,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:37,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535789164] [2024-11-12 12:23:37,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:37,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:37,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:37,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:37,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:37,616 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 219 [2024-11-12 12:23:37,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 219 transitions, 448 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:37,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 219 [2024-11-12 12:23:37,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:37,701 INFO L124 PetriNetUnfolderBase]: 70/673 cut-off events. [2024-11-12 12:23:37,701 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-12 12:23:37,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 673 events. 70/673 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3835 event pairs, 42 based on Foata normal form. 99/657 useless extension candidates. Maximal degree in co-relation 616. Up to 102 conditions per place. [2024-11-12 12:23:37,708 INFO L140 encePairwiseOnDemand]: 207/219 looper letters, 17 selfloop transitions, 2 changer transitions 1/201 dead transitions. [2024-11-12 12:23:37,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 201 transitions, 450 flow [2024-11-12 12:23:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:37,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:37,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 590 transitions. [2024-11-12 12:23:37,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.898021308980213 [2024-11-12 12:23:37,711 INFO L175 Difference]: Start difference. First operand has 209 places, 219 transitions, 448 flow. Second operand 3 states and 590 transitions. [2024-11-12 12:23:37,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 201 transitions, 450 flow [2024-11-12 12:23:37,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 201 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:23:37,714 INFO L231 Difference]: Finished difference. Result has 201 places, 200 transitions, 414 flow [2024-11-12 12:23:37,715 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=201, PETRI_TRANSITIONS=200} [2024-11-12 12:23:37,715 INFO L279 CegarLoopForPetriNet]: 209 programPoint places, -8 predicate places. [2024-11-12 12:23:37,716 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 200 transitions, 414 flow [2024-11-12 12:23:37,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:37,717 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] [2024-11-12 12:23:37,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:23:37,717 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:23:37,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2085246962, now seen corresponding path program 1 times [2024-11-12 12:23:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:37,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980731689] [2024-11-12 12:23:37,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:37,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:37,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:37,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980731689] [2024-11-12 12:23:37,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980731689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:37,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:37,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:37,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312937157] [2024-11-12 12:23:37,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:37,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:37,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:37,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:37,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:37,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 219 [2024-11-12 12:23:37,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 200 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:37,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 219 [2024-11-12 12:23:37,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:37,857 INFO L124 PetriNetUnfolderBase]: 42/529 cut-off events. [2024-11-12 12:23:37,857 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-12 12:23:37,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 529 events. 42/529 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2585 event pairs, 20 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 579. Up to 57 conditions per place. [2024-11-12 12:23:37,862 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 16 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2024-11-12 12:23:37,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 199 transitions, 448 flow [2024-11-12 12:23:37,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:37,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:37,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2024-11-12 12:23:37,864 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8873668188736682 [2024-11-12 12:23:37,864 INFO L175 Difference]: Start difference. First operand has 201 places, 200 transitions, 414 flow. Second operand 3 states and 583 transitions. [2024-11-12 12:23:37,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 199 transitions, 448 flow [2024-11-12 12:23:37,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 199 transitions, 444 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:37,868 INFO L231 Difference]: Finished difference. Result has 199 places, 199 transitions, 412 flow [2024-11-12 12:23:37,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=199, PETRI_TRANSITIONS=199} [2024-11-12 12:23:37,872 INFO L279 CegarLoopForPetriNet]: 209 programPoint places, -10 predicate places. [2024-11-12 12:23:37,872 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 199 transitions, 412 flow [2024-11-12 12:23:37,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,873 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:37,873 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] [2024-11-12 12:23:37,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:23:37,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:23:37,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:37,875 INFO L85 PathProgramCache]: Analyzing trace with hash -498281502, now seen corresponding path program 1 times [2024-11-12 12:23:37,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:37,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089842558] [2024-11-12 12:23:37,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:37,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:37,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:37,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089842558] [2024-11-12 12:23:37,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089842558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:37,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:37,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:37,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674808345] [2024-11-12 12:23:37,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:37,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:37,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:37,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:37,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 219 [2024-11-12 12:23:37,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 199 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:37,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:37,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 219 [2024-11-12 12:23:37,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:38,051 INFO L124 PetriNetUnfolderBase]: 82/811 cut-off events. [2024-11-12 12:23:38,052 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-12 12:23:38,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 811 events. 82/811 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4772 event pairs, 42 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 911. Up to 109 conditions per place. [2024-11-12 12:23:38,060 INFO L140 encePairwiseOnDemand]: 211/219 looper letters, 20 selfloop transitions, 1 changer transitions 0/192 dead transitions. [2024-11-12 12:23:38,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 192 transitions, 440 flow [2024-11-12 12:23:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:38,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2024-11-12 12:23:38,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8645357686453576 [2024-11-12 12:23:38,062 INFO L175 Difference]: Start difference. First operand has 199 places, 199 transitions, 412 flow. Second operand 3 states and 568 transitions. [2024-11-12 12:23:38,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 192 transitions, 440 flow [2024-11-12 12:23:38,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 192 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:38,065 INFO L231 Difference]: Finished difference. Result has 192 places, 192 transitions, 396 flow [2024-11-12 12:23:38,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=192, PETRI_TRANSITIONS=192} [2024-11-12 12:23:38,067 INFO L279 CegarLoopForPetriNet]: 209 programPoint places, -17 predicate places. [2024-11-12 12:23:38,067 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 192 transitions, 396 flow [2024-11-12 12:23:38,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:38,068 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:38,068 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] [2024-11-12 12:23:38,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:23:38,069 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:23:38,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:38,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1518551333, now seen corresponding path program 1 times [2024-11-12 12:23:38,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:38,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761494126] [2024-11-12 12:23:38,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:38,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:38,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:38,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761494126] [2024-11-12 12:23:38,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761494126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:38,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:38,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:38,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437379372] [2024-11-12 12:23:38,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:38,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:38,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:38,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 219 [2024-11-12 12:23:38,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 192 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:38,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:38,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 219 [2024-11-12 12:23:38,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:38,180 INFO L124 PetriNetUnfolderBase]: 31/445 cut-off events. [2024-11-12 12:23:38,180 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-12 12:23:38,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 445 events. 31/445 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1864 event pairs, 12 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 462. Up to 36 conditions per place. [2024-11-12 12:23:38,184 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 11 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2024-11-12 12:23:38,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 191 transitions, 420 flow [2024-11-12 12:23:38,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:38,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:38,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2024-11-12 12:23:38,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9025875190258752 [2024-11-12 12:23:38,186 INFO L175 Difference]: Start difference. First operand has 192 places, 192 transitions, 396 flow. Second operand 3 states and 593 transitions. [2024-11-12 12:23:38,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 191 transitions, 420 flow [2024-11-12 12:23:38,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 191 transitions, 419 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:23:38,190 INFO L231 Difference]: Finished difference. Result has 192 places, 191 transitions, 397 flow [2024-11-12 12:23:38,190 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=192, PETRI_TRANSITIONS=191} [2024-11-12 12:23:38,191 INFO L279 CegarLoopForPetriNet]: 209 programPoint places, -17 predicate places. [2024-11-12 12:23:38,191 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 191 transitions, 397 flow [2024-11-12 12:23:38,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:38,192 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:38,193 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] [2024-11-12 12:23:38,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:23:38,193 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:23:38,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:38,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1948651562, now seen corresponding path program 1 times [2024-11-12 12:23:38,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:38,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928640142] [2024-11-12 12:23:38,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:38,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:38,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:38,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928640142] [2024-11-12 12:23:38,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928640142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:38,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:38,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:38,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722893478] [2024-11-12 12:23:38,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:38,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:38,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:38,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:38,276 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 219 [2024-11-12 12:23:38,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 191 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:38,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:38,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 219 [2024-11-12 12:23:38,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:38,439 INFO L124 PetriNetUnfolderBase]: 195/1598 cut-off events. [2024-11-12 12:23:38,439 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-12 12:23:38,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 1598 events. 195/1598 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 12576 event pairs, 57 based on Foata normal form. 0/1387 useless extension candidates. Maximal degree in co-relation 1888. Up to 204 conditions per place. [2024-11-12 12:23:38,448 INFO L140 encePairwiseOnDemand]: 199/219 looper letters, 32 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2024-11-12 12:23:38,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 210 transitions, 532 flow [2024-11-12 12:23:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2024-11-12 12:23:38,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9056316590563166 [2024-11-12 12:23:38,451 INFO L175 Difference]: Start difference. First operand has 192 places, 191 transitions, 397 flow. Second operand 3 states and 595 transitions. [2024-11-12 12:23:38,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 210 transitions, 532 flow [2024-11-12 12:23:38,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 210 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:38,454 INFO L231 Difference]: Finished difference. Result has 194 places, 205 transitions, 517 flow [2024-11-12 12:23:38,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=194, PETRI_TRANSITIONS=205} [2024-11-12 12:23:38,455 INFO L279 CegarLoopForPetriNet]: 209 programPoint places, -15 predicate places. [2024-11-12 12:23:38,455 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 205 transitions, 517 flow [2024-11-12 12:23:38,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:38,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:38,456 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:23:38,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:23:38,456 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:23:38,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash 110521077, now seen corresponding path program 1 times [2024-11-12 12:23:38,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:38,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948414545] [2024-11-12 12:23:38,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:38,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:38,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948414545] [2024-11-12 12:23:38,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948414545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:38,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:38,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:23:38,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966968930] [2024-11-12 12:23:38,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:38,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:23:38,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:38,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:23:38,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:23:38,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 219 [2024-11-12 12:23:38,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 205 transitions, 517 flow. Second operand has 5 states, 5 states have (on average 190.4) internal successors, (952), 5 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:38,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:38,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 219 [2024-11-12 12:23:38,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:38,744 INFO L124 PetriNetUnfolderBase]: 130/1495 cut-off events. [2024-11-12 12:23:38,744 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-12 12:23:38,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 1495 events. 130/1495 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 11577 event pairs, 41 based on Foata normal form. 1/1300 useless extension candidates. Maximal degree in co-relation 1727. Up to 120 conditions per place. [2024-11-12 12:23:38,752 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 17 selfloop transitions, 0 changer transitions 4/208 dead transitions. [2024-11-12 12:23:38,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 208 transitions, 565 flow [2024-11-12 12:23:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 12:23:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 12:23:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 962 transitions. [2024-11-12 12:23:38,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8785388127853881 [2024-11-12 12:23:38,755 INFO L175 Difference]: Start difference. First operand has 194 places, 205 transitions, 517 flow. Second operand 5 states and 962 transitions. [2024-11-12 12:23:38,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 208 transitions, 565 flow [2024-11-12 12:23:38,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 208 transitions, 537 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:38,765 INFO L231 Difference]: Finished difference. Result has 199 places, 204 transitions, 493 flow [2024-11-12 12:23:38,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=493, PETRI_PLACES=199, PETRI_TRANSITIONS=204} [2024-11-12 12:23:38,766 INFO L279 CegarLoopForPetriNet]: 209 programPoint places, -10 predicate places. [2024-11-12 12:23:38,766 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 204 transitions, 493 flow [2024-11-12 12:23:38,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 190.4) internal successors, (952), 5 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:38,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:38,767 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:23:38,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 12:23:38,767 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:23:38,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:38,768 INFO L85 PathProgramCache]: Analyzing trace with hash 472091293, now seen corresponding path program 1 times [2024-11-12 12:23:38,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:38,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593807458] [2024-11-12 12:23:38,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:38,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:23:38,788 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:23:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:23:38,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:23:38,806 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:23:38,806 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-12 12:23:38,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-12 12:23:38,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-12 12:23:38,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-12 12:23:38,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-12 12:23:38,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-12 12:23:38,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-11-12 12:23:38,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-12 12:23:38,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-12 12:23:38,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-12 12:23:38,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-12 12:23:38,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-12 12:23:38,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-12 12:23:38,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-12 12:23:38,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-12 12:23:38,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-12 12:23:38,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-12 12:23:38,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-12 12:23:38,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-12 12:23:38,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-12 12:23:38,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-12 12:23:38,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-12 12:23:38,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-12 12:23:38,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-12 12:23:38,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-12 12:23:38,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-12 12:23:38,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-12 12:23:38,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-12 12:23:38,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-12 12:23:38,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-12 12:23:38,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-12 12:23:38,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 12:23:38,811 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:23:38,812 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:23:38,812 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:23:38,858 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:23:38,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 290 transitions, 598 flow [2024-11-12 12:23:38,907 INFO L124 PetriNetUnfolderBase]: 24/324 cut-off events. [2024-11-12 12:23:38,907 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 12:23:38,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 324 events. 24/324 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 958 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2024-11-12 12:23:38,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 290 transitions, 598 flow [2024-11-12 12:23:38,915 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 290 transitions, 598 flow [2024-11-12 12:23:38,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:23:38,918 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;@4f11aad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:23:38,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-12 12:23:38,921 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:23:38,921 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-12 12:23:38,921 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:23:38,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:38,921 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] [2024-11-12 12:23:38,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-12 12:23:38,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash 614618759, now seen corresponding path program 1 times [2024-11-12 12:23:38,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:38,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908681285] [2024-11-12 12:23:38,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:38,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:38,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:38,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908681285] [2024-11-12 12:23:38,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908681285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:38,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:38,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:38,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406862242] [2024-11-12 12:23:38,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:38,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:38,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:38,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:38,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:39,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 290 [2024-11-12 12:23:39,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 290 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:39,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:39,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 290 [2024-11-12 12:23:39,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:39,486 INFO L124 PetriNetUnfolderBase]: 829/4693 cut-off events. [2024-11-12 12:23:39,486 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2024-11-12 12:23:39,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5951 conditions, 4693 events. 829/4693 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 48192 event pairs, 630 based on Foata normal form. 847/4741 useless extension candidates. Maximal degree in co-relation 4863. Up to 1033 conditions per place. [2024-11-12 12:23:39,539 INFO L140 encePairwiseOnDemand]: 275/290 looper letters, 24 selfloop transitions, 2 changer transitions 1/267 dead transitions. [2024-11-12 12:23:39,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 267 transitions, 604 flow [2024-11-12 12:23:39,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:39,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 780 transitions. [2024-11-12 12:23:39,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2024-11-12 12:23:39,542 INFO L175 Difference]: Start difference. First operand has 276 places, 290 transitions, 598 flow. Second operand 3 states and 780 transitions. [2024-11-12 12:23:39,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 267 transitions, 604 flow [2024-11-12 12:23:39,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 267 transitions, 602 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-12 12:23:39,546 INFO L231 Difference]: Finished difference. Result has 266 places, 266 transitions, 552 flow [2024-11-12 12:23:39,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=266, PETRI_TRANSITIONS=266} [2024-11-12 12:23:39,547 INFO L279 CegarLoopForPetriNet]: 276 programPoint places, -10 predicate places. [2024-11-12 12:23:39,547 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 266 transitions, 552 flow [2024-11-12 12:23:39,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:39,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:39,547 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] [2024-11-12 12:23:39,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 12:23:39,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-12 12:23:39,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1305819086, now seen corresponding path program 1 times [2024-11-12 12:23:39,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:39,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850877730] [2024-11-12 12:23:39,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:39,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:39,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850877730] [2024-11-12 12:23:39,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850877730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:39,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:39,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467879908] [2024-11-12 12:23:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:39,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:39,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:39,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:39,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:39,611 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 290 [2024-11-12 12:23:39,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 266 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:39,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:39,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 290 [2024-11-12 12:23:39,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:39,862 INFO L124 PetriNetUnfolderBase]: 335/2601 cut-off events. [2024-11-12 12:23:39,863 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2024-11-12 12:23:39,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3084 conditions, 2601 events. 335/2601 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 23488 event pairs, 220 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 3051. Up to 382 conditions per place. [2024-11-12 12:23:39,894 INFO L140 encePairwiseOnDemand]: 287/290 looper letters, 21 selfloop transitions, 2 changer transitions 0/265 dead transitions. [2024-11-12 12:23:39,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 265 transitions, 596 flow [2024-11-12 12:23:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 774 transitions. [2024-11-12 12:23:39,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8896551724137931 [2024-11-12 12:23:39,896 INFO L175 Difference]: Start difference. First operand has 266 places, 266 transitions, 552 flow. Second operand 3 states and 774 transitions. [2024-11-12 12:23:39,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 265 transitions, 596 flow [2024-11-12 12:23:39,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 265 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:39,900 INFO L231 Difference]: Finished difference. Result has 264 places, 265 transitions, 550 flow [2024-11-12 12:23:39,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=264, PETRI_TRANSITIONS=265} [2024-11-12 12:23:39,901 INFO L279 CegarLoopForPetriNet]: 276 programPoint places, -12 predicate places. [2024-11-12 12:23:39,901 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 265 transitions, 550 flow [2024-11-12 12:23:39,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:39,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:39,902 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] [2024-11-12 12:23:39,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 12:23:39,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-12 12:23:39,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:39,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1864809506, now seen corresponding path program 1 times [2024-11-12 12:23:39,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:39,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718338042] [2024-11-12 12:23:39,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:39,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:39,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:39,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718338042] [2024-11-12 12:23:39,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718338042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:39,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:39,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:39,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330873252] [2024-11-12 12:23:39,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:39,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:39,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:39,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:39,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:39,964 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 290 [2024-11-12 12:23:39,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 265 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:39,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:39,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 290 [2024-11-12 12:23:39,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:40,688 INFO L124 PetriNetUnfolderBase]: 985/6371 cut-off events. [2024-11-12 12:23:40,688 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2024-11-12 12:23:40,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7670 conditions, 6371 events. 985/6371 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 69387 event pairs, 630 based on Foata normal form. 0/5359 useless extension candidates. Maximal degree in co-relation 7629. Up to 1120 conditions per place. [2024-11-12 12:23:40,738 INFO L140 encePairwiseOnDemand]: 280/290 looper letters, 27 selfloop transitions, 1 changer transitions 0/256 dead transitions. [2024-11-12 12:23:40,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 256 transitions, 588 flow [2024-11-12 12:23:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2024-11-12 12:23:40,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8632183908045977 [2024-11-12 12:23:40,740 INFO L175 Difference]: Start difference. First operand has 264 places, 265 transitions, 550 flow. Second operand 3 states and 751 transitions. [2024-11-12 12:23:40,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 256 transitions, 588 flow [2024-11-12 12:23:40,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 256 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:40,744 INFO L231 Difference]: Finished difference. Result has 255 places, 256 transitions, 530 flow [2024-11-12 12:23:40,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=255, PETRI_TRANSITIONS=256} [2024-11-12 12:23:40,745 INFO L279 CegarLoopForPetriNet]: 276 programPoint places, -21 predicate places. [2024-11-12 12:23:40,745 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 256 transitions, 530 flow [2024-11-12 12:23:40,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:40,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:40,745 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] [2024-11-12 12:23:40,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 12:23:40,746 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-12 12:23:40,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:40,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2017621733, now seen corresponding path program 1 times [2024-11-12 12:23:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:40,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72558293] [2024-11-12 12:23:40,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:40,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:40,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:40,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72558293] [2024-11-12 12:23:40,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72558293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:40,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:40,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:40,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192505429] [2024-11-12 12:23:40,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:40,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:40,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:40,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:40,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:40,787 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 290 [2024-11-12 12:23:40,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 256 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:40,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:40,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 290 [2024-11-12 12:23:40,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:40,975 INFO L124 PetriNetUnfolderBase]: 190/1771 cut-off events. [2024-11-12 12:23:40,975 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-12 12:23:40,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2037 conditions, 1771 events. 190/1771 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13802 event pairs, 108 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 1996. Up to 196 conditions per place. [2024-11-12 12:23:40,991 INFO L140 encePairwiseOnDemand]: 287/290 looper letters, 15 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2024-11-12 12:23:40,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 255 transitions, 562 flow [2024-11-12 12:23:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:40,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:40,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-11-12 12:23:40,993 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.903448275862069 [2024-11-12 12:23:40,993 INFO L175 Difference]: Start difference. First operand has 255 places, 256 transitions, 530 flow. Second operand 3 states and 786 transitions. [2024-11-12 12:23:40,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 255 transitions, 562 flow [2024-11-12 12:23:40,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 255 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:23:40,996 INFO L231 Difference]: Finished difference. Result has 255 places, 255 transitions, 531 flow [2024-11-12 12:23:40,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=255, PETRI_TRANSITIONS=255} [2024-11-12 12:23:40,997 INFO L279 CegarLoopForPetriNet]: 276 programPoint places, -21 predicate places. [2024-11-12 12:23:40,997 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 255 transitions, 531 flow [2024-11-12 12:23:40,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:40,998 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:40,998 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] [2024-11-12 12:23:40,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 12:23:40,998 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-12 12:23:40,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:40,999 INFO L85 PathProgramCache]: Analyzing trace with hash -46969442, now seen corresponding path program 1 times [2024-11-12 12:23:40,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:40,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843814796] [2024-11-12 12:23:40,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:41,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843814796] [2024-11-12 12:23:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843814796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007761002] [2024-11-12 12:23:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:41,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:41,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 290 [2024-11-12 12:23:41,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 255 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:41,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:41,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 290 [2024-11-12 12:23:41,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:43,321 INFO L124 PetriNetUnfolderBase]: 4660/23986 cut-off events. [2024-11-12 12:23:43,322 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-11-12 12:23:43,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30445 conditions, 23986 events. 4660/23986 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 330556 event pairs, 1667 based on Foata normal form. 0/20563 useless extension candidates. Maximal degree in co-relation 30404. Up to 4132 conditions per place. [2024-11-12 12:23:43,523 INFO L140 encePairwiseOnDemand]: 260/290 looper letters, 48 selfloop transitions, 21 changer transitions 0/284 dead transitions. [2024-11-12 12:23:43,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 284 transitions, 737 flow [2024-11-12 12:23:43,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:43,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 783 transitions. [2024-11-12 12:23:43,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-12 12:23:43,526 INFO L175 Difference]: Start difference. First operand has 255 places, 255 transitions, 531 flow. Second operand 3 states and 783 transitions. [2024-11-12 12:23:43,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 284 transitions, 737 flow [2024-11-12 12:23:43,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 284 transitions, 733 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:43,531 INFO L231 Difference]: Finished difference. Result has 257 places, 276 transitions, 713 flow [2024-11-12 12:23:43,531 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=713, PETRI_PLACES=257, PETRI_TRANSITIONS=276} [2024-11-12 12:23:43,532 INFO L279 CegarLoopForPetriNet]: 276 programPoint places, -19 predicate places. [2024-11-12 12:23:43,532 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 276 transitions, 713 flow [2024-11-12 12:23:43,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:43,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:43,533 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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] [2024-11-12 12:23:43,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 12:23:43,533 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-12 12:23:43,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:43,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1151193954, now seen corresponding path program 1 times [2024-11-12 12:23:43,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:43,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672983463] [2024-11-12 12:23:43,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:43,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:43,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:43,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672983463] [2024-11-12 12:23:43,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672983463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:43,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:43,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:23:43,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465489738] [2024-11-12 12:23:43,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:43,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:23:43,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:43,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:23:43,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:23:43,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 290 [2024-11-12 12:23:43,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 276 transitions, 713 flow. Second operand has 5 states, 5 states have (on average 254.6) internal successors, (1273), 5 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:43,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:43,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 290 [2024-11-12 12:23:43,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:44,466 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([873] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread1of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{thrThread1of3ForFork0_#t~ret6#1=|v_thrThread1of3ForFork0_#t~ret6#1_1|, #pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread1of3ForFork0_#t~ret6#1][86], [277#true, 132#L1045-2true, 291#true, 59#L1060-4true, Black: 293#(= |#race~next~0| 0), 47#$Ultimate##0true, 296#true, 275#true, 273#true, 203#L1045-2true, 287#(= |#race~len~0| 0)]) [2024-11-12 12:23:44,467 INFO L294 olderBase$Statistics]: this new event has 122 ancestors and is cut-off event [2024-11-12 12:23:44,467 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-12 12:23:44,467 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-12 12:23:44,467 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-11-12 12:23:44,857 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([873] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread1of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{thrThread1of3ForFork0_#t~ret6#1=|v_thrThread1of3ForFork0_#t~ret6#1_1|, #pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread1of3ForFork0_#t~ret6#1][86], [277#true, 132#L1045-2true, 291#true, 59#L1060-4true, Black: 293#(= |#race~next~0| 0), 70#L1040-3true, 296#true, 275#true, 273#true, 203#L1045-2true, 287#(= |#race~len~0| 0)]) [2024-11-12 12:23:44,857 INFO L294 olderBase$Statistics]: this new event has 128 ancestors and is cut-off event [2024-11-12 12:23:44,857 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2024-11-12 12:23:44,857 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2024-11-12 12:23:44,858 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2024-11-12 12:23:45,095 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([943] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][168], [277#true, 132#L1045-2true, 227#L1045-2true, 59#L1060-4true, Black: 291#true, 243#L1043-6true, 296#true, 275#true, 273#true, 293#(= |#race~next~0| 0), 287#(= |#race~len~0| 0)]) [2024-11-12 12:23:45,096 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2024-11-12 12:23:45,096 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2024-11-12 12:23:45,096 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2024-11-12 12:23:45,096 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2024-11-12 12:23:45,123 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1013] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread2of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread2of3ForFork0_#t~ret6#1=|v_thrThread2of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread2of3ForFork0_#t~ret6#1][121], [277#true, 227#L1045-2true, 132#L1045-2true, 291#true, 59#L1060-4true, Black: 293#(= |#race~next~0| 0), 296#true, 275#true, 273#true, 203#L1045-2true, 287#(= |#race~len~0| 0)]) [2024-11-12 12:23:45,124 INFO L294 olderBase$Statistics]: this new event has 135 ancestors and is cut-off event [2024-11-12 12:23:45,124 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2024-11-12 12:23:45,124 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2024-11-12 12:23:45,124 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2024-11-12 12:23:45,649 INFO L124 PetriNetUnfolderBase]: 2517/17390 cut-off events. [2024-11-12 12:23:45,650 INFO L125 PetriNetUnfolderBase]: For 565/565 co-relation queries the response was YES. [2024-11-12 12:23:45,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21912 conditions, 17390 events. 2517/17390 cut-off events. For 565/565 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 237451 event pairs, 1063 based on Foata normal form. 1/15068 useless extension candidates. Maximal degree in co-relation 21870. Up to 2203 conditions per place. [2024-11-12 12:23:45,781 INFO L140 encePairwiseOnDemand]: 286/290 looper letters, 20 selfloop transitions, 0 changer transitions 4/279 dead transitions. [2024-11-12 12:23:45,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 279 transitions, 767 flow [2024-11-12 12:23:45,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 12:23:45,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 12:23:45,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1285 transitions. [2024-11-12 12:23:45,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8862068965517241 [2024-11-12 12:23:45,788 INFO L175 Difference]: Start difference. First operand has 257 places, 276 transitions, 713 flow. Second operand 5 states and 1285 transitions. [2024-11-12 12:23:45,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 279 transitions, 767 flow [2024-11-12 12:23:45,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 279 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:45,808 INFO L231 Difference]: Finished difference. Result has 262 places, 275 transitions, 675 flow [2024-11-12 12:23:45,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=675, PETRI_PLACES=262, PETRI_TRANSITIONS=275} [2024-11-12 12:23:45,809 INFO L279 CegarLoopForPetriNet]: 276 programPoint places, -14 predicate places. [2024-11-12 12:23:45,809 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 275 transitions, 675 flow [2024-11-12 12:23:45,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 254.6) internal successors, (1273), 5 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:45,810 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:45,810 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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] [2024-11-12 12:23:45,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 12:23:45,810 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-12 12:23:45,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash 15122776, now seen corresponding path program 1 times [2024-11-12 12:23:45,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:45,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540553567] [2024-11-12 12:23:45,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:23:45,829 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:23:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:23:45,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:23:45,851 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:23:45,852 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-12 12:23:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-12 12:23:45,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-12 12:23:45,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-12 12:23:45,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-12 12:23:45,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-12 12:23:45,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-12 12:23:45,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-12 12:23:45,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-12 12:23:45,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-12 12:23:45,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 12:23:45,856 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:23:45,857 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:23:45,857 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-12 12:23:45,889 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:23:45,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 343 places, 361 transitions, 750 flow [2024-11-12 12:23:45,933 INFO L124 PetriNetUnfolderBase]: 31/407 cut-off events. [2024-11-12 12:23:45,934 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-12 12:23:45,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 407 events. 31/407 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1417 event pairs, 0 based on Foata normal form. 0/333 useless extension candidates. Maximal degree in co-relation 332. Up to 10 conditions per place. [2024-11-12 12:23:45,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 343 places, 361 transitions, 750 flow [2024-11-12 12:23:45,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 343 places, 361 transitions, 750 flow [2024-11-12 12:23:45,944 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:23:45,944 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;@4f11aad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:23:45,944 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-12 12:23:45,946 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:23:45,946 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-12 12:23:45,946 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:23:45,946 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:45,946 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] [2024-11-12 12:23:45,946 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-12 12:23:45,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:45,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1812622224, now seen corresponding path program 1 times [2024-11-12 12:23:45,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:45,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47531735] [2024-11-12 12:23:45,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:45,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:45,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:45,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47531735] [2024-11-12 12:23:45,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47531735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:45,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:45,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:45,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234315633] [2024-11-12 12:23:45,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:45,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:45,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:45,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:45,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:46,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 361 [2024-11-12 12:23:46,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 361 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:46,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:46,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 361 [2024-11-12 12:23:46,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:50,398 INFO L124 PetriNetUnfolderBase]: 8203/34879 cut-off events. [2024-11-12 12:23:50,399 INFO L125 PetriNetUnfolderBase]: For 3752/3752 co-relation queries the response was YES. [2024-11-12 12:23:50,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46428 conditions, 34879 events. 8203/34879 cut-off events. For 3752/3752 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 484723 event pairs, 6804 based on Foata normal form. 7100/36380 useless extension candidates. Maximal degree in co-relation 38090. Up to 9608 conditions per place. [2024-11-12 12:23:51,005 INFO L140 encePairwiseOnDemand]: 343/361 looper letters, 31 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2024-11-12 12:23:51,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 333 transitions, 760 flow [2024-11-12 12:23:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:51,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:51,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2024-11-12 12:23:51,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956602031394275 [2024-11-12 12:23:51,011 INFO L175 Difference]: Start difference. First operand has 343 places, 361 transitions, 750 flow. Second operand 3 states and 970 transitions. [2024-11-12 12:23:51,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 333 transitions, 760 flow [2024-11-12 12:23:51,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 333 transitions, 754 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-12 12:23:51,020 INFO L231 Difference]: Finished difference. Result has 331 places, 332 transitions, 690 flow [2024-11-12 12:23:51,020 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=331, PETRI_TRANSITIONS=332} [2024-11-12 12:23:51,021 INFO L279 CegarLoopForPetriNet]: 343 programPoint places, -12 predicate places. [2024-11-12 12:23:51,021 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 332 transitions, 690 flow [2024-11-12 12:23:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:51,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:51,022 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] [2024-11-12 12:23:51,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 12:23:51,022 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-12 12:23:51,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:51,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1774332754, now seen corresponding path program 1 times [2024-11-12 12:23:51,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:51,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184005378] [2024-11-12 12:23:51,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:51,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:51,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:51,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184005378] [2024-11-12 12:23:51,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184005378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:51,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:51,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:51,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286665957] [2024-11-12 12:23:51,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:51,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:51,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:51,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:51,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:51,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 361 [2024-11-12 12:23:51,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 332 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:51,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:51,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 361 [2024-11-12 12:23:51,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:52,878 INFO L124 PetriNetUnfolderBase]: 2303/13473 cut-off events. [2024-11-12 12:23:52,878 INFO L125 PetriNetUnfolderBase]: For 472/472 co-relation queries the response was YES. [2024-11-12 12:23:52,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16457 conditions, 13473 events. 2303/13473 cut-off events. For 472/472 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 168750 event pairs, 1720 based on Foata normal form. 0/11140 useless extension candidates. Maximal degree in co-relation 16423. Up to 2507 conditions per place. [2024-11-12 12:23:53,075 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 26 selfloop transitions, 2 changer transitions 0/331 dead transitions. [2024-11-12 12:23:53,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 331 transitions, 744 flow [2024-11-12 12:23:53,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:23:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:23:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2024-11-12 12:23:53,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8910433979686058 [2024-11-12 12:23:53,077 INFO L175 Difference]: Start difference. First operand has 331 places, 332 transitions, 690 flow. Second operand 3 states and 965 transitions. [2024-11-12 12:23:53,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 331 transitions, 744 flow [2024-11-12 12:23:53,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 331 transitions, 740 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:23:53,083 INFO L231 Difference]: Finished difference. Result has 329 places, 331 transitions, 688 flow [2024-11-12 12:23:53,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=329, PETRI_TRANSITIONS=331} [2024-11-12 12:23:53,084 INFO L279 CegarLoopForPetriNet]: 343 programPoint places, -14 predicate places. [2024-11-12 12:23:53,084 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 331 transitions, 688 flow [2024-11-12 12:23:53,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:53,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:23:53,085 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] [2024-11-12 12:23:53,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 12:23:53,085 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-12 12:23:53,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:23:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash -421561534, now seen corresponding path program 1 times [2024-11-12 12:23:53,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:23:53,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533208044] [2024-11-12 12:23:53,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:23:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:23:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:23:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:23:53,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:23:53,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533208044] [2024-11-12 12:23:53,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533208044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:23:53,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:23:53,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:23:53,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225953686] [2024-11-12 12:23:53,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:23:53,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:23:53,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:23:53,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:23:53,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:23:53,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 361 [2024-11-12 12:23:53,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 331 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:23:53,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:23:53,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 361 [2024-11-12 12:23:53,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:23:59,771 INFO L124 PetriNetUnfolderBase]: 9683/48118 cut-off events. [2024-11-12 12:23:59,771 INFO L125 PetriNetUnfolderBase]: For 1205/1205 co-relation queries the response was YES. [2024-11-12 12:24:00,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59883 conditions, 48118 events. 9683/48118 cut-off events. For 1205/1205 co-relation queries the response was YES. Maximal size of possible extension queue 1245. Compared 715129 event pairs, 6804 based on Foata normal form. 0/40526 useless extension candidates. Maximal degree in co-relation 59841. Up to 10556 conditions per place. [2024-11-12 12:24:00,463 INFO L140 encePairwiseOnDemand]: 349/361 looper letters, 34 selfloop transitions, 1 changer transitions 0/320 dead transitions. [2024-11-12 12:24:00,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 320 transitions, 736 flow [2024-11-12 12:24:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:24:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:24:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 934 transitions. [2024-11-12 12:24:00,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8624192059095106 [2024-11-12 12:24:00,465 INFO L175 Difference]: Start difference. First operand has 329 places, 331 transitions, 688 flow. Second operand 3 states and 934 transitions. [2024-11-12 12:24:00,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 320 transitions, 736 flow [2024-11-12 12:24:00,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 732 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:24:00,469 INFO L231 Difference]: Finished difference. Result has 318 places, 320 transitions, 664 flow [2024-11-12 12:24:00,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=318, PETRI_TRANSITIONS=320} [2024-11-12 12:24:00,470 INFO L279 CegarLoopForPetriNet]: 343 programPoint places, -25 predicate places. [2024-11-12 12:24:00,470 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 320 transitions, 664 flow [2024-11-12 12:24:00,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:24:00,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:24:00,471 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] [2024-11-12 12:24:00,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 12:24:00,471 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-12 12:24:00,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:24:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash -121138885, now seen corresponding path program 1 times [2024-11-12 12:24:00,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:24:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386708124] [2024-11-12 12:24:00,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:24:00,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:24:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:24:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:24:00,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:24:00,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386708124] [2024-11-12 12:24:00,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386708124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:24:00,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:24:00,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:24:00,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670298849] [2024-11-12 12:24:00,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:24:00,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:24:00,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:24:00,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:24:00,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:24:00,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 361 [2024-11-12 12:24:00,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 320 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:24:00,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:24:00,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 361 [2024-11-12 12:24:00,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:24:01,526 INFO L124 PetriNetUnfolderBase]: 1021/7289 cut-off events. [2024-11-12 12:24:01,526 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2024-11-12 12:24:01,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8580 conditions, 7289 events. 1021/7289 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 79945 event pairs, 684 based on Foata normal form. 0/6128 useless extension candidates. Maximal degree in co-relation 8538. Up to 1028 conditions per place. [2024-11-12 12:24:01,611 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 19 selfloop transitions, 2 changer transitions 0/319 dead transitions. [2024-11-12 12:24:01,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 319 transitions, 704 flow [2024-11-12 12:24:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:24:01,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:24:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2024-11-12 12:24:01,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9039704524469068 [2024-11-12 12:24:01,613 INFO L175 Difference]: Start difference. First operand has 318 places, 320 transitions, 664 flow. Second operand 3 states and 979 transitions. [2024-11-12 12:24:01,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 319 transitions, 704 flow [2024-11-12 12:24:01,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 319 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:24:01,618 INFO L231 Difference]: Finished difference. Result has 318 places, 319 transitions, 665 flow [2024-11-12 12:24:01,618 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=665, PETRI_PLACES=318, PETRI_TRANSITIONS=319} [2024-11-12 12:24:01,619 INFO L279 CegarLoopForPetriNet]: 343 programPoint places, -25 predicate places. [2024-11-12 12:24:01,619 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 319 transitions, 665 flow [2024-11-12 12:24:01,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:24:01,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:24:01,619 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] [2024-11-12 12:24:01,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 12:24:01,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-12 12:24:01,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:24:01,620 INFO L85 PathProgramCache]: Analyzing trace with hash -504263368, now seen corresponding path program 1 times [2024-11-12 12:24:01,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:24:01,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234798424] [2024-11-12 12:24:01,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:24:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:24:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:24:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:24:01,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:24:01,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234798424] [2024-11-12 12:24:01,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234798424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:24:01,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:24:01,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:24:01,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489135488] [2024-11-12 12:24:01,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:24:01,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:24:01,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:24:01,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:24:01,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:24:01,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 361 [2024-11-12 12:24:01,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 319 transitions, 665 flow. Second operand has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:24:01,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:24:01,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 361 [2024-11-12 12:24:01,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand