./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-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.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:43:04,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:43:04,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:43:04,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:43:04,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:43:04,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:43:04,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:43:04,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:43:04,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:43:04,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:43:04,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:43:04,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:43:04,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:43:04,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:43:04,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:43:04,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:43:04,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:43:04,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:43:04,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:43:04,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:43:04,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:43:04,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:43:04,765 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:43:04,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:43:04,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:43:04,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:43:04,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:43:04,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:43:04,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:43:04,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:43:04,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:43:04,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:43:04,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:43:04,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:43:04,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:43:04,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:43:04,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:43:04,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:43:04,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:43:04,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:43:04,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:43:04,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 [2024-11-12 12:43:04,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:43:05,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:43:05,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:43:05,022 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:43:05,023 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:43:05,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2024-11-12 12:43:06,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:43:06,545 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:43:06,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2024-11-12 12:43:06,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc4b7a28/a520d0126ab540e5a998b0264050796f/FLAG137b7a52b [2024-11-12 12:43:06,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc4b7a28/a520d0126ab540e5a998b0264050796f [2024-11-12 12:43:06,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:43:06,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:43:06,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:43:06,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:43:06,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:43:06,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:06" (1/1) ... [2024-11-12 12:43:06,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e926f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:06, skipping insertion in model container [2024-11-12 12:43:06,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:06" (1/1) ... [2024-11-12 12:43:06,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:43:07,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:43:07,329 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:43:07,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:43:07,498 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:43:07,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07 WrapperNode [2024-11-12 12:43:07,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:43:07,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:43:07,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:43:07,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:43:07,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,576 INFO L138 Inliner]: procedures = 277, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-11-12 12:43:07,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:43:07,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:43:07,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:43:07,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:43:07,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:43:07,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:43:07,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:43:07,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:43:07,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (1/1) ... [2024-11-12 12:43:07,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:43:07,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:43:07,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:43:07,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:43:07,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:43:07,738 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:43:07,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:43:07,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:43:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:43:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 12:43:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:43:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:43:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-12 12:43:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-12 12:43:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:43:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:43:07,741 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:43:07,844 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:43:07,846 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:43:08,031 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:43:08,031 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:43:08,051 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:43:08,052 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 12:43:08,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:08 BoogieIcfgContainer [2024-11-12 12:43:08,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:43:08,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:43:08,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:43:08,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:43:08,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:43:06" (1/3) ... [2024-11-12 12:43:08,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f48ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:08, skipping insertion in model container [2024-11-12 12:43:08,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07" (2/3) ... [2024-11-12 12:43:08,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f48ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:08, skipping insertion in model container [2024-11-12 12:43:08,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:08" (3/3) ... [2024-11-12 12:43:08,063 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc-race-2.i [2024-11-12 12:43:08,086 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:43:08,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-12 12:43:08,086 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:43:08,147 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:43:08,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 123 transitions, 253 flow [2024-11-12 12:43:08,213 INFO L124 PetriNetUnfolderBase]: 6/158 cut-off events. [2024-11-12 12:43:08,213 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:43:08,217 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. [2024-11-12 12:43:08,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 123 transitions, 253 flow [2024-11-12 12:43:08,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 123 transitions, 253 flow [2024-11-12 12:43:08,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:43:08,237 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;@33d41871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:43:08,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-12 12:43:08,246 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:43:08,247 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-12 12:43:08,247 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:43:08,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:08,248 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:08,248 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)] === [2024-11-12 12:43:08,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:08,253 INFO L85 PathProgramCache]: Analyzing trace with hash -365369053, now seen corresponding path program 1 times [2024-11-12 12:43:08,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:08,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031959589] [2024-11-12 12:43:08,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:08,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:08,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:08,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031959589] [2024-11-12 12:43:08,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031959589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:08,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:08,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:08,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687837265] [2024-11-12 12:43:08,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:08,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:08,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:08,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:08,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:08,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 123 [2024-11-12 12:43:08,611 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) [2024-11-12 12:43:08,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:08,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 123 [2024-11-12 12:43:08,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:08,667 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-11-12 12:43:08,667 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:43:08,669 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. [2024-11-12 12:43:08,671 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 10 selfloop transitions, 2 changer transitions 1/119 dead transitions. [2024-11-12 12:43:08,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 269 flow [2024-11-12 12:43:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2024-11-12 12:43:08,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-11-12 12:43:08,687 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 253 flow. Second operand 3 states and 337 transitions. [2024-11-12 12:43:08,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 269 flow [2024-11-12 12:43:08,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 119 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:08,696 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 247 flow [2024-11-12 12:43:08,699 INFO L262 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} [2024-11-12 12:43:08,703 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2024-11-12 12:43:08,705 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 247 flow [2024-11-12 12:43:08,706 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) [2024-11-12 12:43:08,706 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:08,706 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:08,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:43:08,707 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)] === [2024-11-12 12:43:08,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1893361870, now seen corresponding path program 1 times [2024-11-12 12:43:08,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:08,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332218289] [2024-11-12 12:43:08,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:08,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:08,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:08,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332218289] [2024-11-12 12:43:08,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332218289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:08,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:08,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:08,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880095553] [2024-11-12 12:43:08,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:08,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:08,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:08,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:08,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:08,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-12 12:43:08,816 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) [2024-11-12 12:43:08,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:08,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-12 12:43:08,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:08,885 INFO L124 PetriNetUnfolderBase]: 9/220 cut-off events. [2024-11-12 12:43:08,892 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-12 12:43:08,894 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. [2024-11-12 12:43:08,895 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 11 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-11-12 12:43:08,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 120 transitions, 277 flow [2024-11-12 12:43:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:08,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2024-11-12 12:43:08,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.926829268292683 [2024-11-12 12:43:08,900 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 247 flow. Second operand 3 states and 342 transitions. [2024-11-12 12:43:08,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 120 transitions, 277 flow [2024-11-12 12:43:08,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 120 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:43:08,903 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 253 flow [2024-11-12 12:43:08,904 INFO L262 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} [2024-11-12 12:43:08,905 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -1 predicate places. [2024-11-12 12:43:08,905 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 253 flow [2024-11-12 12:43:08,906 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) [2024-11-12 12:43:08,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:08,906 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:08,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:43:08,906 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)] === [2024-11-12 12:43:08,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:08,907 INFO L85 PathProgramCache]: Analyzing trace with hash 279472325, now seen corresponding path program 1 times [2024-11-12 12:43:08,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:08,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797479630] [2024-11-12 12:43:08,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:08,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:09,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:09,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:09,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797479630] [2024-11-12 12:43:09,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797479630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:09,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031488386] [2024-11-12 12:43:09,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:09,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:09,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:09,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:09,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:09,483 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2024-11-12 12:43:09,484 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) [2024-11-12 12:43:09,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:09,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2024-11-12 12:43:09,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:09,621 INFO L124 PetriNetUnfolderBase]: 101/536 cut-off events. [2024-11-12 12:43:09,621 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 12:43:09,623 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. [2024-11-12 12:43:09,626 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 33 selfloop transitions, 22 changer transitions 0/147 dead transitions. [2024-11-12 12:43:09,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 147 transitions, 421 flow [2024-11-12 12:43:09,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:09,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 620 transitions. [2024-11-12 12:43:09,628 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8401084010840109 [2024-11-12 12:43:09,628 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 253 flow. Second operand 6 states and 620 transitions. [2024-11-12 12:43:09,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 147 transitions, 421 flow [2024-11-12 12:43:09,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 147 transitions, 421 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:09,633 INFO L231 Difference]: Finished difference. Result has 131 places, 139 transitions, 403 flow [2024-11-12 12:43:09,633 INFO L262 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} [2024-11-12 12:43:09,634 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-11-12 12:43:09,634 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 139 transitions, 403 flow [2024-11-12 12:43:09,635 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) [2024-11-12 12:43:09,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:09,635 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:09,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:43:09,636 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)] === [2024-11-12 12:43:09,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:09,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1492348292, now seen corresponding path program 1 times [2024-11-12 12:43:09,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:09,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008424003] [2024-11-12 12:43:09,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:09,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:09,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:09,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008424003] [2024-11-12 12:43:09,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008424003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:09,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:09,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:09,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072953238] [2024-11-12 12:43:09,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:43:09,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:43:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:43:09,802 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 123 [2024-11-12 12:43:09,803 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) [2024-11-12 12:43:09,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:09,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 123 [2024-11-12 12:43:09,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:09,864 INFO L124 PetriNetUnfolderBase]: 48/379 cut-off events. [2024-11-12 12:43:09,864 INFO L125 PetriNetUnfolderBase]: For 35/43 co-relation queries the response was YES. [2024-11-12 12:43:09,866 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. [2024-11-12 12:43:09,867 INFO L140 encePairwiseOnDemand]: 115/123 looper letters, 15 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-11-12 12:43:09,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 146 transitions, 461 flow [2024-11-12 12:43:09,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:09,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-11-12 12:43:09,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8848238482384824 [2024-11-12 12:43:09,870 INFO L175 Difference]: Start difference. First operand has 131 places, 139 transitions, 403 flow. Second operand 6 states and 653 transitions. [2024-11-12 12:43:09,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 146 transitions, 461 flow [2024-11-12 12:43:09,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:09,875 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 421 flow [2024-11-12 12:43:09,877 INFO L262 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} [2024-11-12 12:43:09,877 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-12 12:43:09,878 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 421 flow [2024-11-12 12:43:09,878 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) [2024-11-12 12:43:09,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:09,879 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:09,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:43:09,879 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-12 12:43:09,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash 851560696, now seen corresponding path program 1 times [2024-11-12 12:43:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:09,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393134379] [2024-11-12 12:43:09,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:09,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:09,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:09,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393134379] [2024-11-12 12:43:09,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393134379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:09,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:09,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:09,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000701133] [2024-11-12 12:43:09,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:09,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:09,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:09,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:09,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:09,934 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-12 12:43:09,934 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) [2024-11-12 12:43:09,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:09,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-12 12:43:09,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:09,989 INFO L124 PetriNetUnfolderBase]: 27/272 cut-off events. [2024-11-12 12:43:09,990 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-12 12:43:09,990 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. [2024-11-12 12:43:09,991 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 7 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-11-12 12:43:09,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 435 flow [2024-11-12 12:43:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:09,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:09,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-12 12:43:09,993 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-11-12 12:43:09,993 INFO L175 Difference]: Start difference. First operand has 140 places, 139 transitions, 421 flow. Second operand 3 states and 338 transitions. [2024-11-12 12:43:09,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 435 flow [2024-11-12 12:43:09,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 137 transitions, 421 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-12 12:43:09,999 INFO L231 Difference]: Finished difference. Result has 132 places, 137 transitions, 407 flow [2024-11-12 12:43:09,999 INFO L262 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} [2024-11-12 12:43:09,999 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-11-12 12:43:10,000 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 137 transitions, 407 flow [2024-11-12 12:43:10,000 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) [2024-11-12 12:43:10,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:10,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:10,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:43:10,002 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-12 12:43:10,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:10,003 INFO L85 PathProgramCache]: Analyzing trace with hash 213761501, now seen corresponding path program 1 times [2024-11-12 12:43:10,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:10,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226274791] [2024-11-12 12:43:10,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:10,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:10,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:10,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226274791] [2024-11-12 12:43:10,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226274791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:10,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:10,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778691816] [2024-11-12 12:43:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:10,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:10,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:10,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-12 12:43:10,078 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) [2024-11-12 12:43:10,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:10,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-12 12:43:10,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:10,111 INFO L124 PetriNetUnfolderBase]: 27/271 cut-off events. [2024-11-12 12:43:10,111 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-12 12:43:10,112 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. [2024-11-12 12:43:10,112 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 8 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2024-11-12 12:43:10,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 136 transitions, 425 flow [2024-11-12 12:43:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-12 12:43:10,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-11-12 12:43:10,114 INFO L175 Difference]: Start difference. First operand has 132 places, 137 transitions, 407 flow. Second operand 3 states and 338 transitions. [2024-11-12 12:43:10,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 136 transitions, 425 flow [2024-11-12 12:43:10,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 136 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:43:10,118 INFO L231 Difference]: Finished difference. Result has 131 places, 136 transitions, 405 flow [2024-11-12 12:43:10,118 INFO L262 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} [2024-11-12 12:43:10,119 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-11-12 12:43:10,120 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 136 transitions, 405 flow [2024-11-12 12:43:10,120 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) [2024-11-12 12:43:10,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:10,120 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:10,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:43:10,121 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)] === [2024-11-12 12:43:10,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:10,121 INFO L85 PathProgramCache]: Analyzing trace with hash -593791463, now seen corresponding path program 1 times [2024-11-12 12:43:10,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:10,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535894140] [2024-11-12 12:43:10,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:10,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:10,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:10,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:10,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535894140] [2024-11-12 12:43:10,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535894140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:10,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:10,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:10,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659774858] [2024-11-12 12:43:10,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:10,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:10,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:10,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:10,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:10,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 123 [2024-11-12 12:43:10,480 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) [2024-11-12 12:43:10,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:10,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 123 [2024-11-12 12:43:10,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:10,577 INFO L124 PetriNetUnfolderBase]: 104/617 cut-off events. [2024-11-12 12:43:10,577 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-11-12 12:43:10,578 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. [2024-11-12 12:43:10,580 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 48 selfloop transitions, 21 changer transitions 7/166 dead transitions. [2024-11-12 12:43:10,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 166 transitions, 646 flow [2024-11-12 12:43:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2024-11-12 12:43:10,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8550135501355014 [2024-11-12 12:43:10,582 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 405 flow. Second operand 6 states and 631 transitions. [2024-11-12 12:43:10,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 166 transitions, 646 flow [2024-11-12 12:43:10,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 166 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:43:10,585 INFO L231 Difference]: Finished difference. Result has 139 places, 151 transitions, 562 flow [2024-11-12 12:43:10,585 INFO L262 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} [2024-11-12 12:43:10,586 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-11-12 12:43:10,586 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 151 transitions, 562 flow [2024-11-12 12:43:10,587 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) [2024-11-12 12:43:10,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:10,587 INFO L206 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] [2024-11-12 12:43:10,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:43:10,587 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)] === [2024-11-12 12:43:10,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:10,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2135801545, now seen corresponding path program 1 times [2024-11-12 12:43:10,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:10,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68740743] [2024-11-12 12:43:10,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:10,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:43:10,606 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:43:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:43:10,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:43:10,632 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:43:10,633 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-12 12:43:10,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-12 12:43:10,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-12 12:43:10,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-12 12:43:10,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-12 12:43:10,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-12 12:43:10,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-12 12:43:10,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-12 12:43:10,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-12 12:43:10,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-12 12:43:10,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-12 12:43:10,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-12 12:43:10,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-12 12:43:10,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-12 12:43:10,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-12 12:43:10,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:43:10,637 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:10,639 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:43:10,639 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:43:10,662 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:43:10,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2024-11-12 12:43:10,686 INFO L124 PetriNetUnfolderBase]: 11/269 cut-off events. [2024-11-12 12:43:10,686 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-12 12:43:10,687 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. [2024-11-12 12:43:10,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2024-11-12 12:43:10,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 342 flow [2024-11-12 12:43:10,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:43:10,690 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;@33d41871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:43:10,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-12 12:43:10,692 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:43:10,692 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-12 12:43:10,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:43:10,692 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:10,693 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:10,693 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)] === [2024-11-12 12:43:10,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:10,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1838005210, now seen corresponding path program 1 times [2024-11-12 12:43:10,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:10,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820281218] [2024-11-12 12:43:10,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:10,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:10,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:10,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820281218] [2024-11-12 12:43:10,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820281218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:10,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:10,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:10,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705930615] [2024-11-12 12:43:10,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:10,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:10,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:10,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:10,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:10,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-12 12:43:10,730 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) [2024-11-12 12:43:10,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:10,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-12 12:43:10,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:10,880 INFO L124 PetriNetUnfolderBase]: 81/1022 cut-off events. [2024-11-12 12:43:10,881 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-12 12:43:10,884 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. [2024-11-12 12:43:10,887 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 15 selfloop transitions, 2 changer transitions 1/159 dead transitions. [2024-11-12 12:43:10,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 159 transitions, 368 flow [2024-11-12 12:43:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2024-11-12 12:43:10,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9141104294478528 [2024-11-12 12:43:10,889 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 342 flow. Second operand 3 states and 447 transitions. [2024-11-12 12:43:10,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 159 transitions, 368 flow [2024-11-12 12:43:10,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 159 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:10,892 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 336 flow [2024-11-12 12:43:10,893 INFO L262 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} [2024-11-12 12:43:10,893 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 1 predicate places. [2024-11-12 12:43:10,893 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 336 flow [2024-11-12 12:43:10,894 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) [2024-11-12 12:43:10,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:10,894 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:10,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:43:10,894 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)] === [2024-11-12 12:43:10,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:10,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1976212306, now seen corresponding path program 1 times [2024-11-12 12:43:10,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:10,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044672681] [2024-11-12 12:43:10,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:10,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:10,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044672681] [2024-11-12 12:43:10,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044672681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:10,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:10,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:10,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453650884] [2024-11-12 12:43:10,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:10,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:10,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:10,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:10,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:10,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-12 12:43:10,935 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) [2024-11-12 12:43:10,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:10,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-12 12:43:10,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:11,050 INFO L124 PetriNetUnfolderBase]: 132/1100 cut-off events. [2024-11-12 12:43:11,051 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-12 12:43:11,056 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. [2024-11-12 12:43:11,061 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 20 selfloop transitions, 3 changer transitions 0/163 dead transitions. [2024-11-12 12:43:11,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 163 transitions, 397 flow [2024-11-12 12:43:11,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:11,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2024-11-12 12:43:11,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9243353783231084 [2024-11-12 12:43:11,063 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 336 flow. Second operand 3 states and 452 transitions. [2024-11-12 12:43:11,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 163 transitions, 397 flow [2024-11-12 12:43:11,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:43:11,066 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 347 flow [2024-11-12 12:43:11,066 INFO L262 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} [2024-11-12 12:43:11,067 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, -2 predicate places. [2024-11-12 12:43:11,067 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 347 flow [2024-11-12 12:43:11,067 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) [2024-11-12 12:43:11,067 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:11,067 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:11,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:43:11,068 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)] === [2024-11-12 12:43:11,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1060372741, now seen corresponding path program 1 times [2024-11-12 12:43:11,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:11,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52178570] [2024-11-12 12:43:11,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:11,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:11,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:11,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52178570] [2024-11-12 12:43:11,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52178570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:11,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:11,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:11,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457971807] [2024-11-12 12:43:11,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:11,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:11,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:11,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 163 [2024-11-12 12:43:11,458 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) [2024-11-12 12:43:11,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:11,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 163 [2024-11-12 12:43:11,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:12,425 INFO L124 PetriNetUnfolderBase]: 1894/6617 cut-off events. [2024-11-12 12:43:12,425 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-11-12 12:43:12,437 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. [2024-11-12 12:43:12,457 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 50 selfloop transitions, 38 changer transitions 0/212 dead transitions. [2024-11-12 12:43:12,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 212 transitions, 636 flow [2024-11-12 12:43:12,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:12,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 845 transitions. [2024-11-12 12:43:12,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8640081799591002 [2024-11-12 12:43:12,459 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 347 flow. Second operand 6 states and 845 transitions. [2024-11-12 12:43:12,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 212 transitions, 636 flow [2024-11-12 12:43:12,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 212 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:12,463 INFO L231 Difference]: Finished difference. Result has 171 places, 195 transitions, 601 flow [2024-11-12 12:43:12,463 INFO L262 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} [2024-11-12 12:43:12,464 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 8 predicate places. [2024-11-12 12:43:12,464 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 195 transitions, 601 flow [2024-11-12 12:43:12,464 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) [2024-11-12 12:43:12,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:12,465 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:12,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:43:12,465 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)] === [2024-11-12 12:43:12,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash -711447876, now seen corresponding path program 1 times [2024-11-12 12:43:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:12,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29268249] [2024-11-12 12:43:12,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:12,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:12,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29268249] [2024-11-12 12:43:12,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29268249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:12,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:12,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:12,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881813501] [2024-11-12 12:43:12,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:12,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:43:12,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:12,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:43:12,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:43:12,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 163 [2024-11-12 12:43:12,736 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) [2024-11-12 12:43:12,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:12,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 163 [2024-11-12 12:43:12,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:13,264 INFO L124 PetriNetUnfolderBase]: 798/3928 cut-off events. [2024-11-12 12:43:13,264 INFO L125 PetriNetUnfolderBase]: For 430/661 co-relation queries the response was YES. [2024-11-12 12:43:13,278 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. [2024-11-12 12:43:13,297 INFO L140 encePairwiseOnDemand]: 155/163 looper letters, 20 selfloop transitions, 2 changer transitions 5/203 dead transitions. [2024-11-12 12:43:13,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 203 transitions, 671 flow [2024-11-12 12:43:13,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:13,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:13,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2024-11-12 12:43:13,300 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8936605316973415 [2024-11-12 12:43:13,300 INFO L175 Difference]: Start difference. First operand has 171 places, 195 transitions, 601 flow. Second operand 6 states and 874 transitions. [2024-11-12 12:43:13,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 203 transitions, 671 flow [2024-11-12 12:43:13,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 203 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:13,305 INFO L231 Difference]: Finished difference. Result has 180 places, 196 transitions, 623 flow [2024-11-12 12:43:13,305 INFO L262 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} [2024-11-12 12:43:13,307 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 17 predicate places. [2024-11-12 12:43:13,307 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 196 transitions, 623 flow [2024-11-12 12:43:13,307 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) [2024-11-12 12:43:13,307 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:13,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:13,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 12:43:13,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:43:13,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:13,308 INFO L85 PathProgramCache]: Analyzing trace with hash -185179167, now seen corresponding path program 1 times [2024-11-12 12:43:13,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:13,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49426895] [2024-11-12 12:43:13,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:13,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:13,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:13,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49426895] [2024-11-12 12:43:13,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49426895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:13,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:13,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:13,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478655102] [2024-11-12 12:43:13,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:13,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:13,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:13,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:13,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2024-11-12 12:43:13,355 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) [2024-11-12 12:43:13,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:13,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2024-11-12 12:43:13,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:13,720 INFO L124 PetriNetUnfolderBase]: 873/3951 cut-off events. [2024-11-12 12:43:13,720 INFO L125 PetriNetUnfolderBase]: For 741/1082 co-relation queries the response was YES. [2024-11-12 12:43:13,739 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. [2024-11-12 12:43:13,752 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 29 selfloop transitions, 10 changer transitions 0/213 dead transitions. [2024-11-12 12:43:13,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 213 transitions, 746 flow [2024-11-12 12:43:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:13,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:13,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-11-12 12:43:13,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.934560327198364 [2024-11-12 12:43:13,754 INFO L175 Difference]: Start difference. First operand has 180 places, 196 transitions, 623 flow. Second operand 3 states and 457 transitions. [2024-11-12 12:43:13,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 213 transitions, 746 flow [2024-11-12 12:43:13,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 213 transitions, 734 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-12 12:43:13,765 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 699 flow [2024-11-12 12:43:13,765 INFO L262 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} [2024-11-12 12:43:13,766 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 14 predicate places. [2024-11-12 12:43:13,766 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 699 flow [2024-11-12 12:43:13,767 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) [2024-11-12 12:43:13,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:13,767 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:13,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 12:43:13,767 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:43:13,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:13,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1784947014, now seen corresponding path program 1 times [2024-11-12 12:43:13,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:13,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764120172] [2024-11-12 12:43:13,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:13,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:13,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:13,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:13,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764120172] [2024-11-12 12:43:13,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764120172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:13,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:13,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:13,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244602131] [2024-11-12 12:43:13,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:13,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:13,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:13,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:13,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-12 12:43:13,828 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) [2024-11-12 12:43:13,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:13,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-12 12:43:13,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:14,250 INFO L124 PetriNetUnfolderBase]: 933/4469 cut-off events. [2024-11-12 12:43:14,250 INFO L125 PetriNetUnfolderBase]: For 1024/1415 co-relation queries the response was YES. [2024-11-12 12:43:14,263 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. [2024-11-12 12:43:14,273 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 26 selfloop transitions, 9 changer transitions 0/217 dead transitions. [2024-11-12 12:43:14,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 217 transitions, 815 flow [2024-11-12 12:43:14,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:14,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2024-11-12 12:43:14,275 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9284253578732107 [2024-11-12 12:43:14,275 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 699 flow. Second operand 3 states and 454 transitions. [2024-11-12 12:43:14,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 217 transitions, 815 flow [2024-11-12 12:43:14,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 217 transitions, 789 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:43:14,285 INFO L231 Difference]: Finished difference. Result has 179 places, 213 transitions, 755 flow [2024-11-12 12:43:14,286 INFO L262 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} [2024-11-12 12:43:14,286 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 16 predicate places. [2024-11-12 12:43:14,286 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 213 transitions, 755 flow [2024-11-12 12:43:14,287 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) [2024-11-12 12:43:14,287 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:14,287 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:14,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 12:43:14,287 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)] === [2024-11-12 12:43:14,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:14,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1781970850, now seen corresponding path program 1 times [2024-11-12 12:43:14,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:14,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034873700] [2024-11-12 12:43:14,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:14,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:14,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:14,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034873700] [2024-11-12 12:43:14,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034873700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:14,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:14,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:14,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736908121] [2024-11-12 12:43:14,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:14,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:14,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:14,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:14,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:14,572 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-11-12 12:43:14,573 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) [2024-11-12 12:43:14,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:14,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-11-12 12:43:14,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:15,922 INFO L124 PetriNetUnfolderBase]: 3463/12362 cut-off events. [2024-11-12 12:43:15,923 INFO L125 PetriNetUnfolderBase]: For 3173/3468 co-relation queries the response was YES. [2024-11-12 12:43:15,959 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. [2024-11-12 12:43:15,992 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 84 selfloop transitions, 38 changer transitions 0/268 dead transitions. [2024-11-12 12:43:15,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 268 transitions, 1179 flow [2024-11-12 12:43:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:15,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2024-11-12 12:43:15,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8752556237218814 [2024-11-12 12:43:15,994 INFO L175 Difference]: Start difference. First operand has 179 places, 213 transitions, 755 flow. Second operand 6 states and 856 transitions. [2024-11-12 12:43:15,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 268 transitions, 1179 flow [2024-11-12 12:43:16,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 268 transitions, 1161 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:43:16,010 INFO L231 Difference]: Finished difference. Result has 187 places, 250 transitions, 1055 flow [2024-11-12 12:43:16,011 INFO L262 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} [2024-11-12 12:43:16,011 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 24 predicate places. [2024-11-12 12:43:16,011 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 250 transitions, 1055 flow [2024-11-12 12:43:16,011 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) [2024-11-12 12:43:16,012 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:16,012 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:16,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 12:43:16,012 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:43:16,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1194309672, now seen corresponding path program 1 times [2024-11-12 12:43:16,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:16,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311262639] [2024-11-12 12:43:16,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:16,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:16,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:16,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:16,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311262639] [2024-11-12 12:43:16,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311262639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:16,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:16,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:16,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927509287] [2024-11-12 12:43:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:16,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:16,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:16,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-11-12 12:43:16,293 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) [2024-11-12 12:43:16,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:16,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-11-12 12:43:16,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:18,875 INFO L124 PetriNetUnfolderBase]: 6379/20106 cut-off events. [2024-11-12 12:43:18,875 INFO L125 PetriNetUnfolderBase]: For 9906/10186 co-relation queries the response was YES. [2024-11-12 12:43:18,943 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. [2024-11-12 12:43:19,020 INFO L140 encePairwiseOnDemand]: 144/163 looper letters, 139 selfloop transitions, 118 changer transitions 0/405 dead transitions. [2024-11-12 12:43:19,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 405 transitions, 2443 flow [2024-11-12 12:43:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:19,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2024-11-12 12:43:19,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.901840490797546 [2024-11-12 12:43:19,023 INFO L175 Difference]: Start difference. First operand has 187 places, 250 transitions, 1055 flow. Second operand 6 states and 882 transitions. [2024-11-12 12:43:19,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 405 transitions, 2443 flow [2024-11-12 12:43:19,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 405 transitions, 2311 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:19,087 INFO L231 Difference]: Finished difference. Result has 196 places, 362 transitions, 2121 flow [2024-11-12 12:43:19,087 INFO L262 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} [2024-11-12 12:43:19,087 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 33 predicate places. [2024-11-12 12:43:19,087 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 362 transitions, 2121 flow [2024-11-12 12:43:19,088 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) [2024-11-12 12:43:19,088 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:19,088 INFO L206 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] [2024-11-12 12:43:19,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 12:43:19,090 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:43:19,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:19,091 INFO L85 PathProgramCache]: Analyzing trace with hash 144639777, now seen corresponding path program 1 times [2024-11-12 12:43:19,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:19,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197751096] [2024-11-12 12:43:19,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:19,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:19,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:19,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:19,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197751096] [2024-11-12 12:43:19,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197751096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:19,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:19,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:19,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447336259] [2024-11-12 12:43:19,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:19,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:19,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:19,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:19,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:19,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-12 12:43:19,154 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) [2024-11-12 12:43:19,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:19,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-12 12:43:19,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:21,194 INFO L124 PetriNetUnfolderBase]: 4457/15454 cut-off events. [2024-11-12 12:43:21,194 INFO L125 PetriNetUnfolderBase]: For 11548/13305 co-relation queries the response was YES. [2024-11-12 12:43:21,257 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. [2024-11-12 12:43:21,369 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 28 selfloop transitions, 11 changer transitions 0/372 dead transitions. [2024-11-12 12:43:21,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 372 transitions, 2236 flow [2024-11-12 12:43:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:21,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-11-12 12:43:21,375 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9263803680981595 [2024-11-12 12:43:21,376 INFO L175 Difference]: Start difference. First operand has 196 places, 362 transitions, 2121 flow. Second operand 3 states and 453 transitions. [2024-11-12 12:43:21,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 372 transitions, 2236 flow [2024-11-12 12:43:21,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 372 transitions, 2200 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:21,706 INFO L231 Difference]: Finished difference. Result has 200 places, 369 transitions, 2173 flow [2024-11-12 12:43:21,706 INFO L262 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} [2024-11-12 12:43:21,707 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 37 predicate places. [2024-11-12 12:43:21,707 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 369 transitions, 2173 flow [2024-11-12 12:43:21,707 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) [2024-11-12 12:43:21,707 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:21,708 INFO L206 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] [2024-11-12 12:43:21,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 12:43:21,708 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)] === [2024-11-12 12:43:21,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:21,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1220047644, now seen corresponding path program 1 times [2024-11-12 12:43:21,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:21,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834951229] [2024-11-12 12:43:21,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:21,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:43:21,734 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:43:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:43:21,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:43:21,758 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:43:21,758 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-12 12:43:21,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-12 12:43:21,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-12 12:43:21,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-12 12:43:21,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-12 12:43:21,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-12 12:43:21,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-12 12:43:21,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-12 12:43:21,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-12 12:43:21,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-12 12:43:21,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-12 12:43:21,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-12 12:43:21,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-12 12:43:21,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-12 12:43:21,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-12 12:43:21,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-12 12:43:21,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-12 12:43:21,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-12 12:43:21,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-12 12:43:21,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-12 12:43:21,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 12:43:21,762 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:21,763 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:43:21,763 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:43:21,791 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 12:43:21,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 203 transitions, 433 flow [2024-11-12 12:43:21,846 INFO L124 PetriNetUnfolderBase]: 21/433 cut-off events. [2024-11-12 12:43:21,846 INFO L125 PetriNetUnfolderBase]: For 19/22 co-relation queries the response was YES. [2024-11-12 12:43:21,848 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. [2024-11-12 12:43:21,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 203 transitions, 433 flow [2024-11-12 12:43:21,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 203 transitions, 433 flow [2024-11-12 12:43:21,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:43:21,856 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;@33d41871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:43:21,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-12 12:43:21,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:43:21,859 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-12 12:43:21,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:43:21,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:21,860 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:21,860 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)] === [2024-11-12 12:43:21,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1695812527, now seen corresponding path program 1 times [2024-11-12 12:43:21,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:21,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020126055] [2024-11-12 12:43:21,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:21,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:21,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:21,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:21,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020126055] [2024-11-12 12:43:21,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020126055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:21,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:21,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:21,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396163894] [2024-11-12 12:43:21,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:21,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:21,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:21,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:21,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:21,905 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-11-12 12:43:21,905 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) [2024-11-12 12:43:21,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:21,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-11-12 12:43:21,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:22,583 INFO L124 PetriNetUnfolderBase]: 656/5099 cut-off events. [2024-11-12 12:43:22,583 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-11-12 12:43:22,599 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. [2024-11-12 12:43:22,612 INFO L140 encePairwiseOnDemand]: 197/203 looper letters, 20 selfloop transitions, 2 changer transitions 1/199 dead transitions. [2024-11-12 12:43:22,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 199 transitions, 469 flow [2024-11-12 12:43:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:22,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-12 12:43:22,614 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9146141215106732 [2024-11-12 12:43:22,614 INFO L175 Difference]: Start difference. First operand has 204 places, 203 transitions, 433 flow. Second operand 3 states and 557 transitions. [2024-11-12 12:43:22,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 199 transitions, 469 flow [2024-11-12 12:43:22,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 199 transitions, 469 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:22,616 INFO L231 Difference]: Finished difference. Result has 205 places, 198 transitions, 427 flow [2024-11-12 12:43:22,617 INFO L262 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} [2024-11-12 12:43:22,617 INFO L279 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2024-11-12 12:43:22,617 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 198 transitions, 427 flow [2024-11-12 12:43:22,617 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) [2024-11-12 12:43:22,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:22,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:22,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 12:43:22,618 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)] === [2024-11-12 12:43:22,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash 714230158, now seen corresponding path program 1 times [2024-11-12 12:43:22,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:22,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311191920] [2024-11-12 12:43:22,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:22,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:22,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311191920] [2024-11-12 12:43:22,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311191920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:22,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:22,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:22,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836434088] [2024-11-12 12:43:22,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:22,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:22,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:22,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:22,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:22,652 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2024-11-12 12:43:22,653 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) [2024-11-12 12:43:22,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:22,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2024-11-12 12:43:22,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:23,353 INFO L124 PetriNetUnfolderBase]: 1275/6749 cut-off events. [2024-11-12 12:43:23,353 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-12 12:43:23,371 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. [2024-11-12 12:43:23,387 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 29 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2024-11-12 12:43:23,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 206 transitions, 521 flow [2024-11-12 12:43:23,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:43:23,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:43:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2024-11-12 12:43:23,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.922824302134647 [2024-11-12 12:43:23,389 INFO L175 Difference]: Start difference. First operand has 205 places, 198 transitions, 427 flow. Second operand 3 states and 562 transitions. [2024-11-12 12:43:23,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 206 transitions, 521 flow [2024-11-12 12:43:23,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 206 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:43:23,391 INFO L231 Difference]: Finished difference. Result has 201 places, 198 transitions, 443 flow [2024-11-12 12:43:23,392 INFO L262 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} [2024-11-12 12:43:23,392 INFO L279 CegarLoopForPetriNet]: 204 programPoint places, -3 predicate places. [2024-11-12 12:43:23,392 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 198 transitions, 443 flow [2024-11-12 12:43:23,393 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) [2024-11-12 12:43:23,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:23,393 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:23,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 12:43:23,393 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)] === [2024-11-12 12:43:23,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1005274949, now seen corresponding path program 1 times [2024-11-12 12:43:23,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:23,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652236744] [2024-11-12 12:43:23,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:23,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:23,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:23,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652236744] [2024-11-12 12:43:23,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652236744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:23,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:23,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:23,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674867119] [2024-11-12 12:43:23,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:23,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:23,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:23,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:23,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:23,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 203 [2024-11-12 12:43:23,663 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) [2024-11-12 12:43:23,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:23,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 203 [2024-11-12 12:43:23,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:31,460 INFO L124 PetriNetUnfolderBase]: 24762/64711 cut-off events. [2024-11-12 12:43:31,461 INFO L125 PetriNetUnfolderBase]: For 2236/2236 co-relation queries the response was YES. [2024-11-12 12:43:31,763 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. [2024-11-12 12:43:32,087 INFO L140 encePairwiseOnDemand]: 184/203 looper letters, 67 selfloop transitions, 54 changer transitions 0/277 dead transitions. [2024-11-12 12:43:32,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 277 transitions, 855 flow [2024-11-12 12:43:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions. [2024-11-12 12:43:32,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8784893267651889 [2024-11-12 12:43:32,090 INFO L175 Difference]: Start difference. First operand has 201 places, 198 transitions, 443 flow. Second operand 6 states and 1070 transitions. [2024-11-12 12:43:32,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 277 transitions, 855 flow [2024-11-12 12:43:32,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 277 transitions, 855 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:32,106 INFO L231 Difference]: Finished difference. Result has 211 places, 251 transitions, 801 flow [2024-11-12 12:43:32,111 INFO L262 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} [2024-11-12 12:43:32,112 INFO L279 CegarLoopForPetriNet]: 204 programPoint places, 7 predicate places. [2024-11-12 12:43:32,112 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 251 transitions, 801 flow [2024-11-12 12:43:32,112 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) [2024-11-12 12:43:32,113 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:32,113 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:32,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 12:43:32,113 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)] === [2024-11-12 12:43:32,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:32,113 INFO L85 PathProgramCache]: Analyzing trace with hash -766545668, now seen corresponding path program 1 times [2024-11-12 12:43:32,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:32,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734123057] [2024-11-12 12:43:32,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:32,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:32,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:32,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:32,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734123057] [2024-11-12 12:43:32,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734123057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:32,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:32,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:32,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436473159] [2024-11-12 12:43:32,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:32,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:43:32,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:32,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:43:32,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:43:32,282 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-11-12 12:43:32,283 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) [2024-11-12 12:43:32,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:32,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-11-12 12:43:32,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:38,057 INFO L124 PetriNetUnfolderBase]: 10026/35624 cut-off events. [2024-11-12 12:43:38,057 INFO L125 PetriNetUnfolderBase]: For 4962/6490 co-relation queries the response was YES. [2024-11-12 12:43:38,199 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. [2024-11-12 12:43:38,295 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 24 selfloop transitions, 2 changer transitions 5/259 dead transitions. [2024-11-12 12:43:38,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 259 transitions, 879 flow [2024-11-12 12:43:38,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1094 transitions. [2024-11-12 12:43:38,301 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8981937602627258 [2024-11-12 12:43:38,301 INFO L175 Difference]: Start difference. First operand has 211 places, 251 transitions, 801 flow. Second operand 6 states and 1094 transitions. [2024-11-12 12:43:38,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 259 transitions, 879 flow [2024-11-12 12:43:38,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 259 transitions, 879 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:38,329 INFO L231 Difference]: Finished difference. Result has 220 places, 252 transitions, 823 flow [2024-11-12 12:43:38,329 INFO L262 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} [2024-11-12 12:43:38,329 INFO L279 CegarLoopForPetriNet]: 204 programPoint places, 16 predicate places. [2024-11-12 12:43:38,329 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 252 transitions, 823 flow [2024-11-12 12:43:38,330 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) [2024-11-12 12:43:38,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:38,330 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:38,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 12:43:38,330 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-12 12:43:38,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:38,331 INFO L85 PathProgramCache]: Analyzing trace with hash -811327886, now seen corresponding path program 1 times [2024-11-12 12:43:38,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:38,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819398216] [2024-11-12 12:43:38,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:38,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:38,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819398216] [2024-11-12 12:43:38,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819398216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:38,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:38,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:43:38,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798145585] [2024-11-12 12:43:38,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:38,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:43:38,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:38,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:43:38,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:43:38,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 203 [2024-11-12 12:43:38,372 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) [2024-11-12 12:43:38,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:38,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 203 [2024-11-12 12:43:38,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand