./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:58:59,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:58:59,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:58:59,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:58:59,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:58:59,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:58:59,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:58:59,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:58:59,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:58:59,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:58:59,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:58:59,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:58:59,975 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:58:59,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:58:59,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:58:59,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:58:59,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:58:59,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:58:59,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:58:59,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:58:59,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:58:59,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:58:59,980 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:58:59,980 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:58:59,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:58:59,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:58:59,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:58:59,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:58:59,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:58:59,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:58:59,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:58:59,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:58:59,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:58:59,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:58:59,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:58:59,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:58:59,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:58:59,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:58:59,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:58:59,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:58:59,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:58:59,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 [2024-11-20 13:59:00,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:59:00,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:59:00,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:59:00,217 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:59:00,217 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:59:00,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2024-11-20 13:59:01,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:59:01,583 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:59:01,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2024-11-20 13:59:01,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9811aee/38f90188536c4e229641ebd0c2c3be60/FLAG114bdaa4f [2024-11-20 13:59:01,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9811aee/38f90188536c4e229641ebd0c2c3be60 [2024-11-20 13:59:01,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:59:01,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:59:01,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:59:01,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:59:01,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:59:01,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:59:01" (1/1) ... [2024-11-20 13:59:01,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4411ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:01, skipping insertion in model container [2024-11-20 13:59:01,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:59:01" (1/1) ... [2024-11-20 13:59:02,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:59:02,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:59:02,370 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:59:02,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:59:02,478 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:59:02,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02 WrapperNode [2024-11-20 13:59:02,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:59:02,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:59:02,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:59:02,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:59:02,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,555 INFO L138 Inliner]: procedures = 277, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-11-20 13:59:02,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:59:02,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:59:02,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:59:02,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:59:02,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:59:02,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:59:02,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:59:02,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:59:02,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (1/1) ... [2024-11-20 13:59:02,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:59:02,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:59:02,619 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) [2024-11-20 13:59:02,621 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 [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-20 13:59:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-20 13:59:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:59:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:59:02,655 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:59:02,752 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:59:02,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:59:02,945 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:59:02,945 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:59:02,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:59:02,964 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 13:59:02,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:59:02 BoogieIcfgContainer [2024-11-20 13:59:02,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:59:02,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:59:02,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:59:02,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:59:02,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:59:01" (1/3) ... [2024-11-20 13:59:02,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a39328c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:59:02, skipping insertion in model container [2024-11-20 13:59:02,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:59:02" (2/3) ... [2024-11-20 13:59:02,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a39328c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:59:02, skipping insertion in model container [2024-11-20 13:59:02,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:59:02" (3/3) ... [2024-11-20 13:59:02,970 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc-race-2.i [2024-11-20 13:59:02,982 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:59:02,982 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-20 13:59:02,982 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:59:03,043 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 13:59:03,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 123 transitions, 253 flow [2024-11-20 13:59:03,117 INFO L124 PetriNetUnfolderBase]: 6/158 cut-off events. [2024-11-20 13:59:03,117 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:59:03,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 158 events. 6/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2024-11-20 13:59:03,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 123 transitions, 253 flow [2024-11-20 13:59:03,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 123 transitions, 253 flow [2024-11-20 13:59:03,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:59:03,135 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;@50845cf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:59:03,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-20 13:59:03,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:59:03,140 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-20 13:59:03,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:59:03,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:03,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:03,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:03,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:03,146 INFO L85 PathProgramCache]: Analyzing trace with hash -365369053, now seen corresponding path program 1 times [2024-11-20 13:59:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033640357] [2024-11-20 13:59:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:03,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:03,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:03,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033640357] [2024-11-20 13:59:03,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033640357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:03,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:03,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:03,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582651875] [2024-11-20 13:59:03,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:03,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:03,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:03,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:03,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:03,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 123 [2024-11-20 13:59:03,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:03,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:03,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 123 [2024-11-20 13:59:03,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:03,513 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-11-20 13:59:03,514 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 13:59:03,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 230 events. 7/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 577 event pairs, 6 based on Foata normal form. 9/211 useless extension candidates. Maximal degree in co-relation 172. Up to 25 conditions per place. [2024-11-20 13:59:03,516 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 10 selfloop transitions, 2 changer transitions 1/119 dead transitions. [2024-11-20 13:59:03,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 269 flow [2024-11-20 13:59:03,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:03,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:03,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2024-11-20 13:59:03,525 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-11-20 13:59:03,526 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 253 flow. Second operand 3 states and 337 transitions. [2024-11-20 13:59:03,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 269 flow [2024-11-20 13:59:03,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 119 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:03,532 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 247 flow [2024-11-20 13:59:03,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2024-11-20 13:59:03,537 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2024-11-20 13:59:03,539 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 247 flow [2024-11-20 13:59:03,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:03,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:03,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:03,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:59:03,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:03,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1893361870, now seen corresponding path program 1 times [2024-11-20 13:59:03,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:03,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376926316] [2024-11-20 13:59:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:03,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:03,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:03,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376926316] [2024-11-20 13:59:03,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376926316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:03,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:03,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:03,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659854220] [2024-11-20 13:59:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:03,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:03,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:03,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:03,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:03,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-20 13:59:03,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:03,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:03,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-20 13:59:03,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:03,665 INFO L124 PetriNetUnfolderBase]: 9/220 cut-off events. [2024-11-20 13:59:03,666 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:59:03,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 220 events. 9/220 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 502 event pairs, 3 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 217. Up to 24 conditions per place. [2024-11-20 13:59:03,668 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 11 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-11-20 13:59:03,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 120 transitions, 277 flow [2024-11-20 13:59:03,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2024-11-20 13:59:03,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.926829268292683 [2024-11-20 13:59:03,670 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 247 flow. Second operand 3 states and 342 transitions. [2024-11-20 13:59:03,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 120 transitions, 277 flow [2024-11-20 13:59:03,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 120 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:59:03,676 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 253 flow [2024-11-20 13:59:03,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2024-11-20 13:59:03,677 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -1 predicate places. [2024-11-20 13:59:03,677 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 253 flow [2024-11-20 13:59:03,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:03,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:03,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:03,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:59:03,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:03,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash 279472325, now seen corresponding path program 1 times [2024-11-20 13:59:03,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:03,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694297257] [2024-11-20 13:59:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:03,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:04,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:04,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694297257] [2024-11-20 13:59:04,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694297257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:04,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:04,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:04,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381142779] [2024-11-20 13:59:04,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:04,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:59:04,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:04,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:59:04,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:59:04,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2024-11-20 13:59:04,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:04,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2024-11-20 13:59:04,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:04,365 INFO L124 PetriNetUnfolderBase]: 101/536 cut-off events. [2024-11-20 13:59:04,366 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 13:59:04,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 536 events. 101/536 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2809 event pairs, 45 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 689. Up to 195 conditions per place. [2024-11-20 13:59:04,370 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 33 selfloop transitions, 22 changer transitions 0/147 dead transitions. [2024-11-20 13:59:04,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 147 transitions, 421 flow [2024-11-20 13:59:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 620 transitions. [2024-11-20 13:59:04,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401084010840109 [2024-11-20 13:59:04,372 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 253 flow. Second operand 6 states and 620 transitions. [2024-11-20 13:59:04,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 147 transitions, 421 flow [2024-11-20 13:59:04,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 147 transitions, 421 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:04,376 INFO L231 Difference]: Finished difference. Result has 131 places, 139 transitions, 403 flow [2024-11-20 13:59:04,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=131, PETRI_TRANSITIONS=139} [2024-11-20 13:59:04,378 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-11-20 13:59:04,378 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 139 transitions, 403 flow [2024-11-20 13:59:04,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:04,379 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:04,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:59:04,379 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:04,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:04,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1492348292, now seen corresponding path program 1 times [2024-11-20 13:59:04,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:04,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094919148] [2024-11-20 13:59:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:04,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:04,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:04,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:04,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094919148] [2024-11-20 13:59:04,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094919148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:04,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:04,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:04,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888924343] [2024-11-20 13:59:04,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:04,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:59:04,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:59:04,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:59:04,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 123 [2024-11-20 13:59:04,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 139 transitions, 403 flow. Second operand has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:04,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 123 [2024-11-20 13:59:04,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:04,579 INFO L124 PetriNetUnfolderBase]: 48/379 cut-off events. [2024-11-20 13:59:04,579 INFO L125 PetriNetUnfolderBase]: For 35/43 co-relation queries the response was YES. [2024-11-20 13:59:04,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 379 events. 48/379 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1484 event pairs, 6 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 495. Up to 53 conditions per place. [2024-11-20 13:59:04,581 INFO L140 encePairwiseOnDemand]: 115/123 looper letters, 15 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-11-20 13:59:04,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 146 transitions, 461 flow [2024-11-20 13:59:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-11-20 13:59:04,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8848238482384824 [2024-11-20 13:59:04,583 INFO L175 Difference]: Start difference. First operand has 131 places, 139 transitions, 403 flow. Second operand 6 states and 653 transitions. [2024-11-20 13:59:04,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 146 transitions, 461 flow [2024-11-20 13:59:04,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:04,589 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 421 flow [2024-11-20 13:59:04,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=421, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2024-11-20 13:59:04,591 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-20 13:59:04,592 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 421 flow [2024-11-20 13:59:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:04,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:04,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:59:04,593 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:04,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash 851560696, now seen corresponding path program 1 times [2024-11-20 13:59:04,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777028191] [2024-11-20 13:59:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:04,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:04,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777028191] [2024-11-20 13:59:04,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777028191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:04,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:04,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:04,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437866259] [2024-11-20 13:59:04,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:04,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:04,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:04,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:04,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:04,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-20 13:59:04,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 421 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:04,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-20 13:59:04,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:04,680 INFO L124 PetriNetUnfolderBase]: 27/272 cut-off events. [2024-11-20 13:59:04,680 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-20 13:59:04,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 272 events. 27/272 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 884 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 372. Up to 49 conditions per place. [2024-11-20 13:59:04,682 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 7 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-11-20 13:59:04,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 435 flow [2024-11-20 13:59:04,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-20 13:59:04,683 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-11-20 13:59:04,683 INFO L175 Difference]: Start difference. First operand has 140 places, 139 transitions, 421 flow. Second operand 3 states and 338 transitions. [2024-11-20 13:59:04,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 435 flow [2024-11-20 13:59:04,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 137 transitions, 421 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-20 13:59:04,690 INFO L231 Difference]: Finished difference. Result has 132 places, 137 transitions, 407 flow [2024-11-20 13:59:04,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=132, PETRI_TRANSITIONS=137} [2024-11-20 13:59:04,690 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-11-20 13:59:04,690 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 137 transitions, 407 flow [2024-11-20 13:59:04,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:04,691 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:04,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:59:04,691 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:04,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash 213761501, now seen corresponding path program 1 times [2024-11-20 13:59:04,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:04,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236015006] [2024-11-20 13:59:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:04,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:04,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:04,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236015006] [2024-11-20 13:59:04,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236015006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:04,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:04,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:04,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977894753] [2024-11-20 13:59:04,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:04,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:04,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:04,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:04,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:04,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-20 13:59:04,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 137 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:04,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-20 13:59:04,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:04,780 INFO L124 PetriNetUnfolderBase]: 27/271 cut-off events. [2024-11-20 13:59:04,781 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-20 13:59:04,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 271 events. 27/271 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 879 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 361. Up to 49 conditions per place. [2024-11-20 13:59:04,783 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 8 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2024-11-20 13:59:04,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 136 transitions, 425 flow [2024-11-20 13:59:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-20 13:59:04,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-11-20 13:59:04,785 INFO L175 Difference]: Start difference. First operand has 132 places, 137 transitions, 407 flow. Second operand 3 states and 338 transitions. [2024-11-20 13:59:04,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 136 transitions, 425 flow [2024-11-20 13:59:04,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 136 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:59:04,788 INFO L231 Difference]: Finished difference. Result has 131 places, 136 transitions, 405 flow [2024-11-20 13:59:04,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=131, PETRI_TRANSITIONS=136} [2024-11-20 13:59:04,789 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-11-20 13:59:04,790 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 136 transitions, 405 flow [2024-11-20 13:59:04,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:04,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:04,791 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:04,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:59:04,791 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:04,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:04,791 INFO L85 PathProgramCache]: Analyzing trace with hash -593791463, now seen corresponding path program 1 times [2024-11-20 13:59:04,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:04,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681568894] [2024-11-20 13:59:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:04,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:59:05,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:05,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681568894] [2024-11-20 13:59:05,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681568894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:05,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:05,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:05,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871605102] [2024-11-20 13:59:05,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:05,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:59:05,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:05,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:59:05,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:59:05,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 123 [2024-11-20 13:59:05,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:05,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:05,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 123 [2024-11-20 13:59:05,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:05,215 INFO L124 PetriNetUnfolderBase]: 104/617 cut-off events. [2024-11-20 13:59:05,215 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-11-20 13:59:05,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 617 events. 104/617 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3288 event pairs, 26 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 1023. Up to 203 conditions per place. [2024-11-20 13:59:05,217 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 48 selfloop transitions, 21 changer transitions 7/166 dead transitions. [2024-11-20 13:59:05,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 166 transitions, 646 flow [2024-11-20 13:59:05,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:05,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2024-11-20 13:59:05,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8550135501355014 [2024-11-20 13:59:05,220 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 405 flow. Second operand 6 states and 631 transitions. [2024-11-20 13:59:05,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 166 transitions, 646 flow [2024-11-20 13:59:05,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 166 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:59:05,224 INFO L231 Difference]: Finished difference. Result has 139 places, 151 transitions, 562 flow [2024-11-20 13:59:05,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=562, PETRI_PLACES=139, PETRI_TRANSITIONS=151} [2024-11-20 13:59:05,225 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-11-20 13:59:05,225 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 151 transitions, 562 flow [2024-11-20 13:59:05,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:05,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:05,226 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:05,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:59:05,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:59:05,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:05,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2135801545, now seen corresponding path program 1 times [2024-11-20 13:59:05,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262049174] [2024-11-20 13:59:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:59:05,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:59:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:59:05,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:59:05,293 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:59:05,294 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-20 13:59:05,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-20 13:59:05,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-20 13:59:05,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-20 13:59:05,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-20 13:59:05,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-20 13:59:05,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-20 13:59:05,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-20 13:59:05,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-20 13:59:05,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-20 13:59:05,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-20 13:59:05,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-20 13:59:05,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-20 13:59:05,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-20 13:59:05,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-20 13:59:05,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:59:05,299 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:05,301 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:59:05,301 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:59:05,330 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:59:05,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2024-11-20 13:59:05,365 INFO L124 PetriNetUnfolderBase]: 11/269 cut-off events. [2024-11-20 13:59:05,365 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-20 13:59:05,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 269 events. 11/269 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 605 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 160. Up to 8 conditions per place. [2024-11-20 13:59:05,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2024-11-20 13:59:05,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 342 flow [2024-11-20 13:59:05,368 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:59:05,369 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;@50845cf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:59:05,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-20 13:59:05,373 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:59:05,374 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-20 13:59:05,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:59:05,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:05,374 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:05,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:05,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:05,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1838005210, now seen corresponding path program 1 times [2024-11-20 13:59:05,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:05,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826592620] [2024-11-20 13:59:05,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:05,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:05,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826592620] [2024-11-20 13:59:05,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826592620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:05,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:05,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:05,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196933751] [2024-11-20 13:59:05,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:05,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:05,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:05,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:05,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:05,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-20 13:59:05,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:05,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:05,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-20 13:59:05,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:05,517 INFO L124 PetriNetUnfolderBase]: 81/1022 cut-off events. [2024-11-20 13:59:05,517 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-20 13:59:05,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 1022 events. 81/1022 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6455 event pairs, 78 based on Foata normal form. 40/927 useless extension candidates. Maximal degree in co-relation 874. Up to 162 conditions per place. [2024-11-20 13:59:05,525 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 15 selfloop transitions, 2 changer transitions 1/159 dead transitions. [2024-11-20 13:59:05,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 159 transitions, 368 flow [2024-11-20 13:59:05,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2024-11-20 13:59:05,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9141104294478528 [2024-11-20 13:59:05,527 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 342 flow. Second operand 3 states and 447 transitions. [2024-11-20 13:59:05,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 159 transitions, 368 flow [2024-11-20 13:59:05,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 159 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:05,529 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 336 flow [2024-11-20 13:59:05,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2024-11-20 13:59:05,531 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 1 predicate places. [2024-11-20 13:59:05,531 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 336 flow [2024-11-20 13:59:05,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:05,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:05,532 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:05,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:59:05,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:05,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:05,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1976212306, now seen corresponding path program 1 times [2024-11-20 13:59:05,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:05,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695515580] [2024-11-20 13:59:05,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:05,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:05,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:05,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695515580] [2024-11-20 13:59:05,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695515580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:05,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:05,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:05,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857414776] [2024-11-20 13:59:05,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:05,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:05,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:05,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:05,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:05,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-20 13:59:05,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:05,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:05,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-20 13:59:05,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:05,698 INFO L124 PetriNetUnfolderBase]: 132/1100 cut-off events. [2024-11-20 13:59:05,699 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-20 13:59:05,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1100 events. 132/1100 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6908 event pairs, 61 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1342. Up to 227 conditions per place. [2024-11-20 13:59:05,707 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 20 selfloop transitions, 3 changer transitions 0/163 dead transitions. [2024-11-20 13:59:05,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 163 transitions, 397 flow [2024-11-20 13:59:05,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:05,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2024-11-20 13:59:05,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243353783231084 [2024-11-20 13:59:05,709 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 336 flow. Second operand 3 states and 452 transitions. [2024-11-20 13:59:05,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 163 transitions, 397 flow [2024-11-20 13:59:05,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:59:05,711 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 347 flow [2024-11-20 13:59:05,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=161, PETRI_TRANSITIONS=158} [2024-11-20 13:59:05,713 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, -2 predicate places. [2024-11-20 13:59:05,713 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 347 flow [2024-11-20 13:59:05,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:05,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:05,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:05,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:59:05,714 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:05,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1060372741, now seen corresponding path program 1 times [2024-11-20 13:59:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:05,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955865948] [2024-11-20 13:59:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:05,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:05,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:05,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955865948] [2024-11-20 13:59:05,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955865948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:05,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:05,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431558247] [2024-11-20 13:59:05,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:05,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:59:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:05,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:59:05,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:59:06,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 163 [2024-11-20 13:59:06,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 158 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:06,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:06,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 163 [2024-11-20 13:59:06,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:06,683 INFO L124 PetriNetUnfolderBase]: 1894/6617 cut-off events. [2024-11-20 13:59:06,683 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-11-20 13:59:06,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10038 conditions, 6617 events. 1894/6617 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 61977 event pairs, 1033 based on Foata normal form. 0/5913 useless extension candidates. Maximal degree in co-relation 5446. Up to 2649 conditions per place. [2024-11-20 13:59:06,708 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 50 selfloop transitions, 38 changer transitions 0/212 dead transitions. [2024-11-20 13:59:06,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 212 transitions, 636 flow [2024-11-20 13:59:06,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:06,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:06,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 845 transitions. [2024-11-20 13:59:06,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640081799591002 [2024-11-20 13:59:06,711 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 347 flow. Second operand 6 states and 845 transitions. [2024-11-20 13:59:06,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 212 transitions, 636 flow [2024-11-20 13:59:06,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 212 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:06,716 INFO L231 Difference]: Finished difference. Result has 171 places, 195 transitions, 601 flow [2024-11-20 13:59:06,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=601, PETRI_PLACES=171, PETRI_TRANSITIONS=195} [2024-11-20 13:59:06,718 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 8 predicate places. [2024-11-20 13:59:06,718 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 195 transitions, 601 flow [2024-11-20 13:59:06,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:06,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:06,719 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:06,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:59:06,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:06,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:06,721 INFO L85 PathProgramCache]: Analyzing trace with hash -711447876, now seen corresponding path program 1 times [2024-11-20 13:59:06,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:06,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102311806] [2024-11-20 13:59:06,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:06,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:06,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:06,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102311806] [2024-11-20 13:59:06,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102311806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:06,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:06,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:06,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240637018] [2024-11-20 13:59:06,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:06,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:59:06,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:06,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:59:06,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:59:06,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 163 [2024-11-20 13:59:06,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 195 transitions, 601 flow. Second operand has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:06,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:06,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 163 [2024-11-20 13:59:06,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:07,199 INFO L124 PetriNetUnfolderBase]: 798/3928 cut-off events. [2024-11-20 13:59:07,200 INFO L125 PetriNetUnfolderBase]: For 430/661 co-relation queries the response was YES. [2024-11-20 13:59:07,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6350 conditions, 3928 events. 798/3928 cut-off events. For 430/661 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 35076 event pairs, 305 based on Foata normal form. 2/3565 useless extension candidates. Maximal degree in co-relation 3849. Up to 1048 conditions per place. [2024-11-20 13:59:07,220 INFO L140 encePairwiseOnDemand]: 155/163 looper letters, 20 selfloop transitions, 2 changer transitions 5/203 dead transitions. [2024-11-20 13:59:07,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 203 transitions, 671 flow [2024-11-20 13:59:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2024-11-20 13:59:07,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8936605316973415 [2024-11-20 13:59:07,224 INFO L175 Difference]: Start difference. First operand has 171 places, 195 transitions, 601 flow. Second operand 6 states and 874 transitions. [2024-11-20 13:59:07,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 203 transitions, 671 flow [2024-11-20 13:59:07,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 203 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:07,229 INFO L231 Difference]: Finished difference. Result has 180 places, 196 transitions, 623 flow [2024-11-20 13:59:07,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=623, PETRI_PLACES=180, PETRI_TRANSITIONS=196} [2024-11-20 13:59:07,231 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 17 predicate places. [2024-11-20 13:59:07,231 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 196 transitions, 623 flow [2024-11-20 13:59:07,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:07,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:07,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:07,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:59:07,232 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:07,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:07,232 INFO L85 PathProgramCache]: Analyzing trace with hash -185179167, now seen corresponding path program 1 times [2024-11-20 13:59:07,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:07,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055325350] [2024-11-20 13:59:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:07,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:07,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:07,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055325350] [2024-11-20 13:59:07,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055325350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:07,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:07,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:07,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203041877] [2024-11-20 13:59:07,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:07,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:07,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:07,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:07,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:07,273 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2024-11-20 13:59:07,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 196 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:07,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:07,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2024-11-20 13:59:07,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:07,745 INFO L124 PetriNetUnfolderBase]: 873/3951 cut-off events. [2024-11-20 13:59:07,746 INFO L125 PetriNetUnfolderBase]: For 741/1082 co-relation queries the response was YES. [2024-11-20 13:59:07,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7130 conditions, 3951 events. 873/3951 cut-off events. For 741/1082 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 37619 event pairs, 171 based on Foata normal form. 1/3640 useless extension candidates. Maximal degree in co-relation 7031. Up to 1139 conditions per place. [2024-11-20 13:59:07,774 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 29 selfloop transitions, 10 changer transitions 0/213 dead transitions. [2024-11-20 13:59:07,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 213 transitions, 746 flow [2024-11-20 13:59:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-11-20 13:59:07,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.934560327198364 [2024-11-20 13:59:07,776 INFO L175 Difference]: Start difference. First operand has 180 places, 196 transitions, 623 flow. Second operand 3 states and 457 transitions. [2024-11-20 13:59:07,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 213 transitions, 746 flow [2024-11-20 13:59:07,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 213 transitions, 734 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-20 13:59:07,788 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 699 flow [2024-11-20 13:59:07,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=177, PETRI_TRANSITIONS=206} [2024-11-20 13:59:07,789 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 14 predicate places. [2024-11-20 13:59:07,790 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 699 flow [2024-11-20 13:59:07,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:07,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:07,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:07,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:59:07,790 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:07,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:07,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1784947014, now seen corresponding path program 1 times [2024-11-20 13:59:07,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:07,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599801747] [2024-11-20 13:59:07,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:07,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:07,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599801747] [2024-11-20 13:59:07,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599801747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:07,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:07,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:07,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238049968] [2024-11-20 13:59:07,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:07,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:07,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:07,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:07,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:07,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-20 13:59:07,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 206 transitions, 699 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:07,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:07,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-20 13:59:07,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:08,222 INFO L124 PetriNetUnfolderBase]: 933/4469 cut-off events. [2024-11-20 13:59:08,222 INFO L125 PetriNetUnfolderBase]: For 1024/1415 co-relation queries the response was YES. [2024-11-20 13:59:08,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8163 conditions, 4469 events. 933/4469 cut-off events. For 1024/1415 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 44732 event pairs, 189 based on Foata normal form. 9/4125 useless extension candidates. Maximal degree in co-relation 7080. Up to 1280 conditions per place. [2024-11-20 13:59:08,248 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 26 selfloop transitions, 9 changer transitions 0/217 dead transitions. [2024-11-20 13:59:08,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 217 transitions, 815 flow [2024-11-20 13:59:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:08,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2024-11-20 13:59:08,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9284253578732107 [2024-11-20 13:59:08,250 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 699 flow. Second operand 3 states and 454 transitions. [2024-11-20 13:59:08,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 217 transitions, 815 flow [2024-11-20 13:59:08,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 217 transitions, 789 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:59:08,260 INFO L231 Difference]: Finished difference. Result has 179 places, 213 transitions, 755 flow [2024-11-20 13:59:08,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=755, PETRI_PLACES=179, PETRI_TRANSITIONS=213} [2024-11-20 13:59:08,261 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 16 predicate places. [2024-11-20 13:59:08,261 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 213 transitions, 755 flow [2024-11-20 13:59:08,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:08,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:08,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:08,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:59:08,262 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:08,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1781970850, now seen corresponding path program 1 times [2024-11-20 13:59:08,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:08,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21023142] [2024-11-20 13:59:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:59:08,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:08,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21023142] [2024-11-20 13:59:08,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21023142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:08,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:08,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:08,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904751375] [2024-11-20 13:59:08,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:08,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:59:08,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:08,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:59:08,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:59:08,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-11-20 13:59:08,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 213 transitions, 755 flow. Second operand has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:08,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:08,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-11-20 13:59:08,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:09,715 INFO L124 PetriNetUnfolderBase]: 3463/12362 cut-off events. [2024-11-20 13:59:09,715 INFO L125 PetriNetUnfolderBase]: For 3173/3468 co-relation queries the response was YES. [2024-11-20 13:59:09,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25334 conditions, 12362 events. 3463/12362 cut-off events. For 3173/3468 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 138879 event pairs, 1210 based on Foata normal form. 8/11483 useless extension candidates. Maximal degree in co-relation 23198. Up to 4790 conditions per place. [2024-11-20 13:59:09,794 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 84 selfloop transitions, 38 changer transitions 0/268 dead transitions. [2024-11-20 13:59:09,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 268 transitions, 1179 flow [2024-11-20 13:59:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2024-11-20 13:59:09,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752556237218814 [2024-11-20 13:59:09,797 INFO L175 Difference]: Start difference. First operand has 179 places, 213 transitions, 755 flow. Second operand 6 states and 856 transitions. [2024-11-20 13:59:09,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 268 transitions, 1179 flow [2024-11-20 13:59:09,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 268 transitions, 1161 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:59:09,814 INFO L231 Difference]: Finished difference. Result has 187 places, 250 transitions, 1055 flow [2024-11-20 13:59:09,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1055, PETRI_PLACES=187, PETRI_TRANSITIONS=250} [2024-11-20 13:59:09,815 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 24 predicate places. [2024-11-20 13:59:09,815 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 250 transitions, 1055 flow [2024-11-20 13:59:09,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:09,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:09,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:09,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:59:09,816 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:09,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:09,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1194309672, now seen corresponding path program 1 times [2024-11-20 13:59:09,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:09,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935303762] [2024-11-20 13:59:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:09,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:10,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:10,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:10,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935303762] [2024-11-20 13:59:10,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935303762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:10,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:10,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54301513] [2024-11-20 13:59:10,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:10,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:59:10,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:10,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:59:10,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:59:10,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-11-20 13:59:10,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 250 transitions, 1055 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:10,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:10,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-11-20 13:59:10,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:12,092 INFO L124 PetriNetUnfolderBase]: 6379/20106 cut-off events. [2024-11-20 13:59:12,093 INFO L125 PetriNetUnfolderBase]: For 9906/10186 co-relation queries the response was YES. [2024-11-20 13:59:12,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48936 conditions, 20106 events. 6379/20106 cut-off events. For 9906/10186 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 225487 event pairs, 1628 based on Foata normal form. 12/18714 useless extension candidates. Maximal degree in co-relation 43007. Up to 8153 conditions per place. [2024-11-20 13:59:12,199 INFO L140 encePairwiseOnDemand]: 144/163 looper letters, 139 selfloop transitions, 118 changer transitions 0/405 dead transitions. [2024-11-20 13:59:12,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 405 transitions, 2443 flow [2024-11-20 13:59:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2024-11-20 13:59:12,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.901840490797546 [2024-11-20 13:59:12,201 INFO L175 Difference]: Start difference. First operand has 187 places, 250 transitions, 1055 flow. Second operand 6 states and 882 transitions. [2024-11-20 13:59:12,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 405 transitions, 2443 flow [2024-11-20 13:59:12,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 405 transitions, 2311 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:12,253 INFO L231 Difference]: Finished difference. Result has 196 places, 362 transitions, 2121 flow [2024-11-20 13:59:12,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2121, PETRI_PLACES=196, PETRI_TRANSITIONS=362} [2024-11-20 13:59:12,254 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 33 predicate places. [2024-11-20 13:59:12,254 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 362 transitions, 2121 flow [2024-11-20 13:59:12,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:12,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:12,255 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:12,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:59:12,255 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:12,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:12,255 INFO L85 PathProgramCache]: Analyzing trace with hash 144639777, now seen corresponding path program 1 times [2024-11-20 13:59:12,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:12,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575091034] [2024-11-20 13:59:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:12,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 13:59:12,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:12,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575091034] [2024-11-20 13:59:12,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575091034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:12,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:12,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:12,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687614874] [2024-11-20 13:59:12,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:12,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:12,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:12,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:12,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-20 13:59:12,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 362 transitions, 2121 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:12,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:12,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-20 13:59:12,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:14,208 INFO L124 PetriNetUnfolderBase]: 4457/15454 cut-off events. [2024-11-20 13:59:14,208 INFO L125 PetriNetUnfolderBase]: For 11548/13305 co-relation queries the response was YES. [2024-11-20 13:59:14,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42386 conditions, 15454 events. 4457/15454 cut-off events. For 11548/13305 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 174330 event pairs, 356 based on Foata normal form. 12/14769 useless extension candidates. Maximal degree in co-relation 38260. Up to 3717 conditions per place. [2024-11-20 13:59:14,291 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 28 selfloop transitions, 11 changer transitions 0/372 dead transitions. [2024-11-20 13:59:14,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 372 transitions, 2236 flow [2024-11-20 13:59:14,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:14,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-11-20 13:59:14,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9263803680981595 [2024-11-20 13:59:14,293 INFO L175 Difference]: Start difference. First operand has 196 places, 362 transitions, 2121 flow. Second operand 3 states and 453 transitions. [2024-11-20 13:59:14,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 372 transitions, 2236 flow [2024-11-20 13:59:14,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 372 transitions, 2200 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:14,485 INFO L231 Difference]: Finished difference. Result has 200 places, 369 transitions, 2173 flow [2024-11-20 13:59:14,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2085, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2173, PETRI_PLACES=200, PETRI_TRANSITIONS=369} [2024-11-20 13:59:14,486 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 37 predicate places. [2024-11-20 13:59:14,486 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 369 transitions, 2173 flow [2024-11-20 13:59:14,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:14,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:14,488 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:14,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 13:59:14,488 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:59:14,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1220047644, now seen corresponding path program 1 times [2024-11-20 13:59:14,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:14,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950967411] [2024-11-20 13:59:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:14,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:59:14,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:59:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:59:14,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:59:14,525 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:59:14,525 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-20 13:59:14,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-20 13:59:14,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-20 13:59:14,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-20 13:59:14,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-20 13:59:14,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-20 13:59:14,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-20 13:59:14,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-20 13:59:14,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-20 13:59:14,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-20 13:59:14,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-20 13:59:14,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 13:59:14,528 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:14,528 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:59:14,528 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-20 13:59:14,554 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 13:59:14,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 203 transitions, 433 flow [2024-11-20 13:59:14,594 INFO L124 PetriNetUnfolderBase]: 21/433 cut-off events. [2024-11-20 13:59:14,594 INFO L125 PetriNetUnfolderBase]: For 19/22 co-relation queries the response was YES. [2024-11-20 13:59:14,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 433 events. 21/433 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1289 event pairs, 1 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 277. Up to 16 conditions per place. [2024-11-20 13:59:14,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 203 transitions, 433 flow [2024-11-20 13:59:14,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 203 transitions, 433 flow [2024-11-20 13:59:14,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:59:14,600 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;@50845cf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:59:14,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-20 13:59:14,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:59:14,601 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-20 13:59:14,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:59:14,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:14,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:14,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:59:14,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1695812527, now seen corresponding path program 1 times [2024-11-20 13:59:14,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:14,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827298820] [2024-11-20 13:59:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:14,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:14,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827298820] [2024-11-20 13:59:14,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827298820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:14,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:14,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:14,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839016998] [2024-11-20 13:59:14,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:14,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:14,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:14,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:14,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:14,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-11-20 13:59:14,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 203 transitions, 433 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:14,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:14,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-11-20 13:59:14,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:15,262 INFO L124 PetriNetUnfolderBase]: 656/5099 cut-off events. [2024-11-20 13:59:15,263 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-11-20 13:59:15,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6310 conditions, 5099 events. 656/5099 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 51112 event pairs, 643 based on Foata normal form. 188/4624 useless extension candidates. Maximal degree in co-relation 4712. Up to 1052 conditions per place. [2024-11-20 13:59:15,293 INFO L140 encePairwiseOnDemand]: 197/203 looper letters, 20 selfloop transitions, 2 changer transitions 1/199 dead transitions. [2024-11-20 13:59:15,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 199 transitions, 469 flow [2024-11-20 13:59:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:15,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-20 13:59:15,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9146141215106732 [2024-11-20 13:59:15,295 INFO L175 Difference]: Start difference. First operand has 204 places, 203 transitions, 433 flow. Second operand 3 states and 557 transitions. [2024-11-20 13:59:15,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 199 transitions, 469 flow [2024-11-20 13:59:15,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 199 transitions, 469 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:15,298 INFO L231 Difference]: Finished difference. Result has 205 places, 198 transitions, 427 flow [2024-11-20 13:59:15,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=203, 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=427, PETRI_PLACES=205, PETRI_TRANSITIONS=198} [2024-11-20 13:59:15,300 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2024-11-20 13:59:15,300 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 198 transitions, 427 flow [2024-11-20 13:59:15,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:15,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:15,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:15,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 13:59:15,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:59:15,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:15,301 INFO L85 PathProgramCache]: Analyzing trace with hash 714230158, now seen corresponding path program 1 times [2024-11-20 13:59:15,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:15,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556191166] [2024-11-20 13:59:15,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:15,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:15,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:15,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556191166] [2024-11-20 13:59:15,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556191166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:15,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:15,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:15,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174508327] [2024-11-20 13:59:15,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:15,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:15,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:15,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:15,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:15,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2024-11-20 13:59:15,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 198 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:15,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:15,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2024-11-20 13:59:15,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:15,897 INFO L124 PetriNetUnfolderBase]: 1275/6749 cut-off events. [2024-11-20 13:59:15,897 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-20 13:59:15,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8947 conditions, 6749 events. 1275/6749 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 69228 event pairs, 437 based on Foata normal form. 0/6232 useless extension candidates. Maximal degree in co-relation 8905. Up to 1872 conditions per place. [2024-11-20 13:59:15,931 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 29 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2024-11-20 13:59:15,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 206 transitions, 521 flow [2024-11-20 13:59:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2024-11-20 13:59:15,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.922824302134647 [2024-11-20 13:59:15,933 INFO L175 Difference]: Start difference. First operand has 205 places, 198 transitions, 427 flow. Second operand 3 states and 562 transitions. [2024-11-20 13:59:15,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 206 transitions, 521 flow [2024-11-20 13:59:15,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 206 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:59:15,937 INFO L231 Difference]: Finished difference. Result has 201 places, 198 transitions, 443 flow [2024-11-20 13:59:15,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=201, PETRI_TRANSITIONS=198} [2024-11-20 13:59:15,938 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, -3 predicate places. [2024-11-20 13:59:15,938 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 198 transitions, 443 flow [2024-11-20 13:59:15,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:15,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:15,938 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:15,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 13:59:15,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:59:15,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1005274949, now seen corresponding path program 1 times [2024-11-20 13:59:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:15,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000844929] [2024-11-20 13:59:15,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:15,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:16,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000844929] [2024-11-20 13:59:16,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000844929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:16,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:16,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:16,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241389662] [2024-11-20 13:59:16,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:16,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:59:16,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:16,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:59:16,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:59:16,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 203 [2024-11-20 13:59:16,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 198 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:16,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:16,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 203 [2024-11-20 13:59:16,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:22,456 INFO L124 PetriNetUnfolderBase]: 24762/64711 cut-off events. [2024-11-20 13:59:22,457 INFO L125 PetriNetUnfolderBase]: For 2236/2236 co-relation queries the response was YES. [2024-11-20 13:59:22,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102379 conditions, 64711 events. 24762/64711 cut-off events. For 2236/2236 co-relation queries the response was YES. Maximal size of possible extension queue 1909. Compared 805141 event pairs, 14369 based on Foata normal form. 0/58481 useless extension candidates. Maximal degree in co-relation 62909. Up to 30792 conditions per place. [2024-11-20 13:59:22,939 INFO L140 encePairwiseOnDemand]: 184/203 looper letters, 67 selfloop transitions, 54 changer transitions 0/277 dead transitions. [2024-11-20 13:59:22,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 277 transitions, 855 flow [2024-11-20 13:59:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:22,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions. [2024-11-20 13:59:22,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8784893267651889 [2024-11-20 13:59:22,941 INFO L175 Difference]: Start difference. First operand has 201 places, 198 transitions, 443 flow. Second operand 6 states and 1070 transitions. [2024-11-20 13:59:22,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 277 transitions, 855 flow [2024-11-20 13:59:22,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 277 transitions, 855 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:22,946 INFO L231 Difference]: Finished difference. Result has 211 places, 251 transitions, 801 flow [2024-11-20 13:59:22,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=801, PETRI_PLACES=211, PETRI_TRANSITIONS=251} [2024-11-20 13:59:22,947 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 7 predicate places. [2024-11-20 13:59:22,947 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 251 transitions, 801 flow [2024-11-20 13:59:22,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:22,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:22,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:22,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 13:59:22,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:59:22,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:22,948 INFO L85 PathProgramCache]: Analyzing trace with hash -766545668, now seen corresponding path program 1 times [2024-11-20 13:59:22,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:22,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961081708] [2024-11-20 13:59:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:22,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:22,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:22,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961081708] [2024-11-20 13:59:22,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961081708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:22,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:22,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:59:22,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072683060] [2024-11-20 13:59:22,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:22,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:59:22,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:22,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:59:22,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:59:23,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-11-20 13:59:23,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 251 transitions, 801 flow. Second operand has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:23,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:23,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-11-20 13:59:23,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:26,672 INFO L124 PetriNetUnfolderBase]: 10026/35624 cut-off events. [2024-11-20 13:59:26,672 INFO L125 PetriNetUnfolderBase]: For 4962/6490 co-relation queries the response was YES. [2024-11-20 13:59:26,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59446 conditions, 35624 events. 10026/35624 cut-off events. For 4962/6490 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 439527 event pairs, 5453 based on Foata normal form. 1/32402 useless extension candidates. Maximal degree in co-relation 28968. Up to 12805 conditions per place. [2024-11-20 13:59:26,851 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 24 selfloop transitions, 2 changer transitions 5/259 dead transitions. [2024-11-20 13:59:26,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 259 transitions, 879 flow [2024-11-20 13:59:26,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:59:26,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:59:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1094 transitions. [2024-11-20 13:59:26,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8981937602627258 [2024-11-20 13:59:26,853 INFO L175 Difference]: Start difference. First operand has 211 places, 251 transitions, 801 flow. Second operand 6 states and 1094 transitions. [2024-11-20 13:59:26,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 259 transitions, 879 flow [2024-11-20 13:59:26,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 259 transitions, 879 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:59:26,880 INFO L231 Difference]: Finished difference. Result has 220 places, 252 transitions, 823 flow [2024-11-20 13:59:26,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=823, PETRI_PLACES=220, PETRI_TRANSITIONS=252} [2024-11-20 13:59:26,880 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 16 predicate places. [2024-11-20 13:59:26,880 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 252 transitions, 823 flow [2024-11-20 13:59:26,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:26,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:26,881 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:26,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 13:59:26,881 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:59:26,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:26,881 INFO L85 PathProgramCache]: Analyzing trace with hash -811327886, now seen corresponding path program 1 times [2024-11-20 13:59:26,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:26,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457320761] [2024-11-20 13:59:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:26,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:26,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:26,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457320761] [2024-11-20 13:59:26,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457320761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:26,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:26,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:26,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375912985] [2024-11-20 13:59:26,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:26,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:26,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:26,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:26,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:26,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 203 [2024-11-20 13:59:26,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 252 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:26,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:26,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 203 [2024-11-20 13:59:26,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:59:34,522 INFO L124 PetriNetUnfolderBase]: 21181/70234 cut-off events. [2024-11-20 13:59:34,522 INFO L125 PetriNetUnfolderBase]: For 17920/24465 co-relation queries the response was YES. [2024-11-20 13:59:34,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129758 conditions, 70234 events. 21181/70234 cut-off events. For 17920/24465 co-relation queries the response was YES. Maximal size of possible extension queue 2426. Compared 992510 event pairs, 6604 based on Foata normal form. 14/64072 useless extension candidates. Maximal degree in co-relation 129658. Up to 23127 conditions per place. [2024-11-20 13:59:35,286 INFO L140 encePairwiseOnDemand]: 182/203 looper letters, 44 selfloop transitions, 15 changer transitions 0/278 dead transitions. [2024-11-20 13:59:35,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 278 transitions, 1014 flow [2024-11-20 13:59:35,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:59:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:59:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2024-11-20 13:59:35,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9293924466338259 [2024-11-20 13:59:35,288 INFO L175 Difference]: Start difference. First operand has 220 places, 252 transitions, 823 flow. Second operand 3 states and 566 transitions. [2024-11-20 13:59:35,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 278 transitions, 1014 flow [2024-11-20 13:59:35,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 278 transitions, 1002 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-20 13:59:35,998 INFO L231 Difference]: Finished difference. Result has 217 places, 267 transitions, 943 flow [2024-11-20 13:59:35,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=943, PETRI_PLACES=217, PETRI_TRANSITIONS=267} [2024-11-20 13:59:35,999 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 13 predicate places. [2024-11-20 13:59:35,999 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 267 transitions, 943 flow [2024-11-20 13:59:35,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:35,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:59:35,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:59:35,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 13:59:36,000 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:59:36,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:59:36,000 INFO L85 PathProgramCache]: Analyzing trace with hash -993790377, now seen corresponding path program 1 times [2024-11-20 13:59:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:59:36,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901367930] [2024-11-20 13:59:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:59:36,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:59:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:59:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:59:36,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:59:36,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901367930] [2024-11-20 13:59:36,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901367930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:59:36,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:59:36,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:59:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595917077] [2024-11-20 13:59:36,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:59:36,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:59:36,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:59:36,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:59:36,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:59:36,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2024-11-20 13:59:36,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 267 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:59:36,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:59:36,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2024-11-20 13:59:36,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand