./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.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 e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:02:32,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:02:32,749 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 18:02:32,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:02:32,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:02:32,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:02:32,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:02:32,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:02:32,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:02:32,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:02:32,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:02:32,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:02:32,770 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:02:32,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:02:32,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 18:02:32,770 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:02:32,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:02:32,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:02:32,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:02:32,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 18:02:32,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:02:32,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 18:02:32,774 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 18:02:32,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:02:32,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:02:32,774 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:02:32,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 18:02:32,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:02:32,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:02:32,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:02:32,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:02:32,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:02:32,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:02:32,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:02:32,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 18:02:32,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:02:32,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:02:32,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:02:32,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:02:32,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:02:32,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:02:32,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de [2024-11-22 18:02:33,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:02:33,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:02:33,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:02:33,107 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:02:33,110 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:02:33,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-11-22 18:02:34,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:02:34,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:02:34,582 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-11-22 18:02:34,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fff0c213/83b6beceaf3848748f8b23d4f72b422c/FLAGdb6b8fa3d [2024-11-22 18:02:34,957 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fff0c213/83b6beceaf3848748f8b23d4f72b422c [2024-11-22 18:02:34,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:02:34,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:02:34,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:02:34,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:02:34,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:02:34,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:02:34" (1/1) ... [2024-11-22 18:02:34,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695e1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:34, skipping insertion in model container [2024-11-22 18:02:34,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:02:34" (1/1) ... [2024-11-22 18:02:35,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:02:35,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:02:35,441 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:02:35,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:02:35,549 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:02:35,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35 WrapperNode [2024-11-22 18:02:35,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:02:35,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:02:35,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:02:35,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:02:35,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,611 INFO L138 Inliner]: procedures = 267, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-11-22 18:02:35,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:02:35,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:02:35,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:02:35,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:02:35,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:02:35,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:02:35,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:02:35,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:02:35,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (1/1) ... [2024-11-22 18:02:35,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:02:35,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:02:35,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 18:02:35,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 18:02:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-22 18:02:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:02:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 18:02:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-22 18:02:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-22 18:02:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:02:35,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:02:35,714 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 18:02:35,804 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:02:35,806 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:02:35,974 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 18:02:35,974 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:02:35,995 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:02:35,996 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 18:02:35,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:02:35 BoogieIcfgContainer [2024-11-22 18:02:35,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:02:35,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:02:35,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:02:36,002 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:02:36,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:02:34" (1/3) ... [2024-11-22 18:02:36,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b269658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:02:36, skipping insertion in model container [2024-11-22 18:02:36,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:35" (2/3) ... [2024-11-22 18:02:36,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b269658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:02:36, skipping insertion in model container [2024-11-22 18:02:36,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:02:35" (3/3) ... [2024-11-22 18:02:36,004 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid-join.i [2024-11-22 18:02:36,017 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:02:36,018 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-22 18:02:36,019 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 18:02:36,064 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 18:02:36,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 121 transitions, 249 flow [2024-11-22 18:02:36,200 INFO L124 PetriNetUnfolderBase]: 6/174 cut-off events. [2024-11-22 18:02:36,200 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 18:02:36,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 174 events. 6/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-11-22 18:02:36,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 121 transitions, 249 flow [2024-11-22 18:02:36,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 121 transitions, 249 flow [2024-11-22 18:02:36,248 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:02:36,257 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;@185a3e8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:02:36,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-22 18:02:36,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:02:36,273 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-22 18:02:36,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:02:36,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:36,274 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:36,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:36,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:36,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1252820999, now seen corresponding path program 1 times [2024-11-22 18:02:36,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:36,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471288298] [2024-11-22 18:02:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:36,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471288298] [2024-11-22 18:02:36,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471288298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:36,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:36,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40148017] [2024-11-22 18:02:36,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:36,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:36,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:36,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:36,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:36,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 121 [2024-11-22 18:02:36,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:36,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:36,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 121 [2024-11-22 18:02:36,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:36,598 INFO L124 PetriNetUnfolderBase]: 8/212 cut-off events. [2024-11-22 18:02:36,598 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-22 18:02:36,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 212 events. 8/212 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 526 event pairs, 1 based on Foata normal form. 8/197 useless extension candidates. Maximal degree in co-relation 142. Up to 16 conditions per place. [2024-11-22 18:02:36,600 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 8 selfloop transitions, 3 changer transitions 2/122 dead transitions. [2024-11-22 18:02:36,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 122 transitions, 275 flow [2024-11-22 18:02:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-22 18:02:36,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953168044077135 [2024-11-22 18:02:36,614 INFO L175 Difference]: Start difference. First operand has 120 places, 121 transitions, 249 flow. Second operand 3 states and 346 transitions. [2024-11-22 18:02:36,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 122 transitions, 275 flow [2024-11-22 18:02:36,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 122 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:02:36,622 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 263 flow [2024-11-22 18:02:36,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2024-11-22 18:02:36,628 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-11-22 18:02:36,628 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 263 flow [2024-11-22 18:02:36,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:36,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:36,629 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:36,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:02:36,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:36,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:36,631 INFO L85 PathProgramCache]: Analyzing trace with hash 419048417, now seen corresponding path program 1 times [2024-11-22 18:02:36,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:36,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029464356] [2024-11-22 18:02:36,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:36,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:36,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:36,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029464356] [2024-11-22 18:02:36,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029464356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:36,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:36,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428000683] [2024-11-22 18:02:36,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:36,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:02:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:36,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:02:36,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:02:36,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 121 [2024-11-22 18:02:36,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:36,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:36,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 121 [2024-11-22 18:02:36,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:37,005 INFO L124 PetriNetUnfolderBase]: 17/323 cut-off events. [2024-11-22 18:02:37,005 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-22 18:02:37,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 323 events. 17/323 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1142 event pairs, 1 based on Foata normal form. 1/299 useless extension candidates. Maximal degree in co-relation 311. Up to 49 conditions per place. [2024-11-22 18:02:37,007 INFO L140 encePairwiseOnDemand]: 113/121 looper letters, 15 selfloop transitions, 2 changer transitions 5/126 dead transitions. [2024-11-22 18:02:37,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 321 flow [2024-11-22 18:02:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:37,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 641 transitions. [2024-11-22 18:02:37,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8829201101928374 [2024-11-22 18:02:37,016 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 263 flow. Second operand 6 states and 641 transitions. [2024-11-22 18:02:37,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 321 flow [2024-11-22 18:02:37,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:37,020 INFO L231 Difference]: Finished difference. Result has 130 places, 119 transitions, 275 flow [2024-11-22 18:02:37,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, 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=6, PETRI_FLOW=275, PETRI_PLACES=130, PETRI_TRANSITIONS=119} [2024-11-22 18:02:37,021 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places. [2024-11-22 18:02:37,021 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 119 transitions, 275 flow [2024-11-22 18:02:37,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:37,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:37,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:37,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:02:37,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:37,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:37,026 INFO L85 PathProgramCache]: Analyzing trace with hash -182679660, now seen corresponding path program 1 times [2024-11-22 18:02:37,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:37,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125092306] [2024-11-22 18:02:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:37,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:37,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:37,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125092306] [2024-11-22 18:02:37,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125092306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:37,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:37,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:37,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098425059] [2024-11-22 18:02:37,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:37,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:37,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2024-11-22 18:02:37,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 119 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:37,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:37,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2024-11-22 18:02:37,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:37,683 INFO L124 PetriNetUnfolderBase]: 46/420 cut-off events. [2024-11-22 18:02:37,684 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-22 18:02:37,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 420 events. 46/420 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1893 event pairs, 35 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 510. Up to 117 conditions per place. [2024-11-22 18:02:37,689 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 36 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-11-22 18:02:37,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 126 transitions, 371 flow [2024-11-22 18:02:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions. [2024-11-22 18:02:37,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7520661157024794 [2024-11-22 18:02:37,692 INFO L175 Difference]: Start difference. First operand has 130 places, 119 transitions, 275 flow. Second operand 6 states and 546 transitions. [2024-11-22 18:02:37,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 126 transitions, 371 flow [2024-11-22 18:02:37,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 357 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:37,696 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 269 flow [2024-11-22 18:02:37,698 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=259, 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=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2024-11-22 18:02:37,699 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 6 predicate places. [2024-11-22 18:02:37,699 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 269 flow [2024-11-22 18:02:37,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:37,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:37,699 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:37,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:02:37,700 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:37,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:37,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1297227942, now seen corresponding path program 1 times [2024-11-22 18:02:37,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:37,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80218841] [2024-11-22 18:02:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:37,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:37,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:37,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80218841] [2024-11-22 18:02:37,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80218841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:37,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:37,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:37,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474638112] [2024-11-22 18:02:37,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:37,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:37,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:37,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:38,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:38,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 121 [2024-11-22 18:02:38,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 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) [2024-11-22 18:02:38,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:38,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 121 [2024-11-22 18:02:38,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:38,136 INFO L124 PetriNetUnfolderBase]: 46/346 cut-off events. [2024-11-22 18:02:38,137 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-22 18:02:38,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 346 events. 46/346 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1567 event pairs, 19 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 407. Up to 112 conditions per place. [2024-11-22 18:02:38,138 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 34 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-11-22 18:02:38,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 125 transitions, 361 flow [2024-11-22 18:02:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:38,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:38,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2024-11-22 18:02:38,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7658402203856749 [2024-11-22 18:02:38,140 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 269 flow. Second operand 6 states and 556 transitions. [2024-11-22 18:02:38,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 125 transitions, 361 flow [2024-11-22 18:02:38,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 125 transitions, 351 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:38,142 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 267 flow [2024-11-22 18:02:38,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2024-11-22 18:02:38,143 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-11-22 18:02:38,143 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 267 flow [2024-11-22 18:02:38,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 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) [2024-11-22 18:02:38,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:38,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:38,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:02:38,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:38,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:38,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1602367110, now seen corresponding path program 1 times [2024-11-22 18:02:38,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:38,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59370308] [2024-11-22 18:02:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:38,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:38,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:38,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59370308] [2024-11-22 18:02:38,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59370308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:38,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:38,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:38,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867106390] [2024-11-22 18:02:38,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:38,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:38,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:38,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:38,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:38,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 121 [2024-11-22 18:02:38,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:38,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:38,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 121 [2024-11-22 18:02:38,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:38,208 INFO L124 PetriNetUnfolderBase]: 5/216 cut-off events. [2024-11-22 18:02:38,208 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-11-22 18:02:38,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 216 events. 5/216 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 593 event pairs, 3 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 212. Up to 25 conditions per place. [2024-11-22 18:02:38,209 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 8 selfloop transitions, 4 changer transitions 3/120 dead transitions. [2024-11-22 18:02:38,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 120 transitions, 303 flow [2024-11-22 18:02:38,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:38,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-22 18:02:38,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931129476584022 [2024-11-22 18:02:38,211 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 267 flow. Second operand 3 states and 338 transitions. [2024-11-22 18:02:38,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 120 transitions, 303 flow [2024-11-22 18:02:38,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 120 transitions, 293 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:38,213 INFO L231 Difference]: Finished difference. Result has 124 places, 117 transitions, 279 flow [2024-11-22 18:02:38,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=124, PETRI_TRANSITIONS=117} [2024-11-22 18:02:38,214 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-11-22 18:02:38,214 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 117 transitions, 279 flow [2024-11-22 18:02:38,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:38,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:38,215 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:38,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:02:38,215 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:38,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:38,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1005027146, now seen corresponding path program 1 times [2024-11-22 18:02:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:38,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605401671] [2024-11-22 18:02:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:38,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:38,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:02:38,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:38,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605401671] [2024-11-22 18:02:38,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605401671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:38,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:38,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:38,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950230307] [2024-11-22 18:02:38,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:38,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:38,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:38,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:38,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:38,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 121 [2024-11-22 18:02:38,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:38,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:38,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 121 [2024-11-22 18:02:38,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:38,759 INFO L124 PetriNetUnfolderBase]: 33/406 cut-off events. [2024-11-22 18:02:38,759 INFO L125 PetriNetUnfolderBase]: For 66/69 co-relation queries the response was YES. [2024-11-22 18:02:38,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 406 events. 33/406 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1839 event pairs, 23 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 511. Up to 79 conditions per place. [2024-11-22 18:02:38,760 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 31 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2024-11-22 18:02:38,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 123 transitions, 363 flow [2024-11-22 18:02:38,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2024-11-22 18:02:38,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7796143250688705 [2024-11-22 18:02:38,763 INFO L175 Difference]: Start difference. First operand has 124 places, 117 transitions, 279 flow. Second operand 6 states and 566 transitions. [2024-11-22 18:02:38,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 123 transitions, 363 flow [2024-11-22 18:02:38,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:38,766 INFO L231 Difference]: Finished difference. Result has 125 places, 115 transitions, 277 flow [2024-11-22 18:02:38,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=125, PETRI_TRANSITIONS=115} [2024-11-22 18:02:38,768 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-11-22 18:02:38,768 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 115 transitions, 277 flow [2024-11-22 18:02:38,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:38,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:38,769 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:38,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:02:38,769 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:38,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:38,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1993570666, now seen corresponding path program 1 times [2024-11-22 18:02:38,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:38,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274342679] [2024-11-22 18:02:38,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:38,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:38,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:38,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274342679] [2024-11-22 18:02:38,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274342679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:02:38,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026522910] [2024-11-22 18:02:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:38,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:02:38,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:02:38,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:02:38,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:02:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:38,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 18:02:38,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:02:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:39,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:02:39,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:39,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026522910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:02:39,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:02:39,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-22 18:02:39,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875501359] [2024-11-22 18:02:39,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:02:39,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 18:02:39,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:39,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 18:02:39,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 18:02:39,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 121 [2024-11-22 18:02:39,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 115 transitions, 277 flow. Second operand has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:39,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:39,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 121 [2024-11-22 18:02:39,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:39,425 INFO L124 PetriNetUnfolderBase]: 12/243 cut-off events. [2024-11-22 18:02:39,425 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-22 18:02:39,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 243 events. 12/243 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 615 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 219. Up to 18 conditions per place. [2024-11-22 18:02:39,426 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 14 selfloop transitions, 8 changer transitions 9/119 dead transitions. [2024-11-22 18:02:39,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 323 flow [2024-11-22 18:02:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 18:02:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 18:02:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 834 transitions. [2024-11-22 18:02:39,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8615702479338843 [2024-11-22 18:02:39,429 INFO L175 Difference]: Start difference. First operand has 125 places, 115 transitions, 277 flow. Second operand 8 states and 834 transitions. [2024-11-22 18:02:39,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 323 flow [2024-11-22 18:02:39,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 299 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-22 18:02:39,433 INFO L231 Difference]: Finished difference. Result has 123 places, 104 transitions, 247 flow [2024-11-22 18:02:39,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=123, PETRI_TRANSITIONS=104} [2024-11-22 18:02:39,434 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 3 predicate places. [2024-11-22 18:02:39,434 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 104 transitions, 247 flow [2024-11-22 18:02:39,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:39,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:39,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:39,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 18:02:39,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:02:39,636 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:39,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash -191687227, now seen corresponding path program 1 times [2024-11-22 18:02:39,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:39,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954475822] [2024-11-22 18:02:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:02:39,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:39,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954475822] [2024-11-22 18:02:39,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954475822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:39,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:39,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:39,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325907978] [2024-11-22 18:02:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:39,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:39,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:39,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:40,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2024-11-22 18:02:40,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 104 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:40,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:40,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2024-11-22 18:02:40,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:40,073 INFO L124 PetriNetUnfolderBase]: 28/299 cut-off events. [2024-11-22 18:02:40,073 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-22 18:02:40,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 299 events. 28/299 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1047 event pairs, 18 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 305. Up to 60 conditions per place. [2024-11-22 18:02:40,074 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 12 selfloop transitions, 0 changer transitions 39/111 dead transitions. [2024-11-22 18:02:40,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 317 flow [2024-11-22 18:02:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 605 transitions. [2024-11-22 18:02:40,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-22 18:02:40,079 INFO L175 Difference]: Start difference. First operand has 123 places, 104 transitions, 247 flow. Second operand 6 states and 605 transitions. [2024-11-22 18:02:40,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 317 flow [2024-11-22 18:02:40,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 111 transitions, 306 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:40,080 INFO L231 Difference]: Finished difference. Result has 113 places, 72 transitions, 156 flow [2024-11-22 18:02:40,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=113, PETRI_TRANSITIONS=72} [2024-11-22 18:02:40,081 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -7 predicate places. [2024-11-22 18:02:40,081 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 72 transitions, 156 flow [2024-11-22 18:02:40,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:40,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:40,084 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 18:02:40,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:02:40,084 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:02:40,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:40,085 INFO L85 PathProgramCache]: Analyzing trace with hash -751275198, now seen corresponding path program 1 times [2024-11-22 18:02:40,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:40,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884768652] [2024-11-22 18:02:40,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:40,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:02:40,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:02:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:02:40,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:02:40,151 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:02:40,152 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-22 18:02:40,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-22 18:02:40,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-22 18:02:40,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-22 18:02:40,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-22 18:02:40,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-22 18:02:40,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-22 18:02:40,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-22 18:02:40,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-22 18:02:40,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:02:40,154 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:40,156 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:02:40,156 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 18:02:40,167 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 18:02:40,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 139 transitions, 294 flow [2024-11-22 18:02:40,186 INFO L124 PetriNetUnfolderBase]: 11/308 cut-off events. [2024-11-22 18:02:40,186 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 18:02:40,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 308 events. 11/308 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 578 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2024-11-22 18:02:40,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 139 transitions, 294 flow [2024-11-22 18:02:40,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 294 flow [2024-11-22 18:02:40,188 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:02:40,189 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;@185a3e8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:02:40,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-22 18:02:40,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:02:40,191 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-22 18:02:40,191 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:02:40,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:40,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:40,192 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:40,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:40,192 INFO L85 PathProgramCache]: Analyzing trace with hash 800780135, now seen corresponding path program 1 times [2024-11-22 18:02:40,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:40,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104646725] [2024-11-22 18:02:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:40,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:40,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:40,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104646725] [2024-11-22 18:02:40,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104646725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:40,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:40,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:40,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150864461] [2024-11-22 18:02:40,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:40,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:40,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:40,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:40,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:40,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2024-11-22 18:02:40,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:40,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:40,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2024-11-22 18:02:40,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:40,304 INFO L124 PetriNetUnfolderBase]: 119/878 cut-off events. [2024-11-22 18:02:40,304 INFO L125 PetriNetUnfolderBase]: For 60/103 co-relation queries the response was YES. [2024-11-22 18:02:40,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 878 events. 119/878 cut-off events. For 60/103 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4812 event pairs, 50 based on Foata normal form. 36/808 useless extension candidates. Maximal degree in co-relation 837. Up to 139 conditions per place. [2024-11-22 18:02:40,308 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 16 selfloop transitions, 4 changer transitions 1/143 dead transitions. [2024-11-22 18:02:40,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 143 transitions, 342 flow [2024-11-22 18:02:40,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2024-11-22 18:02:40,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9424460431654677 [2024-11-22 18:02:40,310 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 294 flow. Second operand 3 states and 393 transitions. [2024-11-22 18:02:40,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 143 transitions, 342 flow [2024-11-22 18:02:40,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 143 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:02:40,311 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 316 flow [2024-11-22 18:02:40,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-11-22 18:02:40,312 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 4 predicate places. [2024-11-22 18:02:40,312 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 316 flow [2024-11-22 18:02:40,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:40,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:40,313 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:40,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:02:40,313 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:40,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:40,313 INFO L85 PathProgramCache]: Analyzing trace with hash -200520543, now seen corresponding path program 1 times [2024-11-22 18:02:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987459651] [2024-11-22 18:02:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:40,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:40,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987459651] [2024-11-22 18:02:40,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987459651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:40,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:40,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:40,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443312109] [2024-11-22 18:02:40,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:40,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:02:40,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:40,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:02:40,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:02:40,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 139 [2024-11-22 18:02:40,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:40,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:40,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 139 [2024-11-22 18:02:40,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:40,577 INFO L124 PetriNetUnfolderBase]: 189/1374 cut-off events. [2024-11-22 18:02:40,578 INFO L125 PetriNetUnfolderBase]: For 72/73 co-relation queries the response was YES. [2024-11-22 18:02:40,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1374 events. 189/1374 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9468 event pairs, 131 based on Foata normal form. 1/1256 useless extension candidates. Maximal degree in co-relation 1273. Up to 314 conditions per place. [2024-11-22 18:02:40,584 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 20 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-11-22 18:02:40,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 386 flow [2024-11-22 18:02:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2024-11-22 18:02:40,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752997601918465 [2024-11-22 18:02:40,586 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 316 flow. Second operand 6 states and 730 transitions. [2024-11-22 18:02:40,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 386 flow [2024-11-22 18:02:40,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 146 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:40,588 INFO L231 Difference]: Finished difference. Result has 149 places, 139 transitions, 330 flow [2024-11-22 18:02:40,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=149, PETRI_TRANSITIONS=139} [2024-11-22 18:02:40,589 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 10 predicate places. [2024-11-22 18:02:40,589 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 139 transitions, 330 flow [2024-11-22 18:02:40,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:40,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:40,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:40,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 18:02:40,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:40,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:40,591 INFO L85 PathProgramCache]: Analyzing trace with hash 2085519199, now seen corresponding path program 1 times [2024-11-22 18:02:40,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:40,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35825095] [2024-11-22 18:02:40,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:40,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:40,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:40,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35825095] [2024-11-22 18:02:40,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35825095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:40,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:40,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:40,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215763755] [2024-11-22 18:02:40,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:40,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:40,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:40,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:40,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:40,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 139 [2024-11-22 18:02:40,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 139 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:40,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:40,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 139 [2024-11-22 18:02:40,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:41,145 INFO L124 PetriNetUnfolderBase]: 448/2416 cut-off events. [2024-11-22 18:02:41,146 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-22 18:02:41,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 2416 events. 448/2416 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 20025 event pairs, 342 based on Foata normal form. 0/2149 useless extension candidates. Maximal degree in co-relation 3409. Up to 657 conditions per place. [2024-11-22 18:02:41,156 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 49 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2024-11-22 18:02:41,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 154 transitions, 468 flow [2024-11-22 18:02:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:41,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2024-11-22 18:02:41,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7697841726618705 [2024-11-22 18:02:41,159 INFO L175 Difference]: Start difference. First operand has 149 places, 139 transitions, 330 flow. Second operand 6 states and 642 transitions. [2024-11-22 18:02:41,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 154 transitions, 468 flow [2024-11-22 18:02:41,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 154 transitions, 456 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-22 18:02:41,162 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 326 flow [2024-11-22 18:02:41,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-11-22 18:02:41,163 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 7 predicate places. [2024-11-22 18:02:41,163 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 326 flow [2024-11-22 18:02:41,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:41,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:41,164 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:41,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:02:41,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:41,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:41,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1065155985, now seen corresponding path program 1 times [2024-11-22 18:02:41,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:41,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801234221] [2024-11-22 18:02:41,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:41,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:41,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:41,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801234221] [2024-11-22 18:02:41,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801234221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:41,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:41,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:41,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501266485] [2024-11-22 18:02:41,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:41,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:41,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:41,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:41,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:41,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 139 [2024-11-22 18:02:41,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:41,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:41,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 139 [2024-11-22 18:02:41,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:41,655 INFO L124 PetriNetUnfolderBase]: 446/2418 cut-off events. [2024-11-22 18:02:41,656 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-22 18:02:41,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3494 conditions, 2418 events. 446/2418 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 20034 event pairs, 264 based on Foata normal form. 0/2139 useless extension candidates. Maximal degree in co-relation 2137. Up to 633 conditions per place. [2024-11-22 18:02:41,665 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 46 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2024-11-22 18:02:41,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 153 transitions, 458 flow [2024-11-22 18:02:41,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 652 transitions. [2024-11-22 18:02:41,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7817745803357314 [2024-11-22 18:02:41,667 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 326 flow. Second operand 6 states and 652 transitions. [2024-11-22 18:02:41,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 153 transitions, 458 flow [2024-11-22 18:02:41,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 448 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:41,669 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 324 flow [2024-11-22 18:02:41,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2024-11-22 18:02:41,670 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-11-22 18:02:41,670 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 324 flow [2024-11-22 18:02:41,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:41,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:41,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:41,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 18:02:41,671 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:41,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash 481607029, now seen corresponding path program 1 times [2024-11-22 18:02:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:41,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520591141] [2024-11-22 18:02:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:41,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:41,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:41,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:41,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520591141] [2024-11-22 18:02:41,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520591141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:41,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:41,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:41,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062950006] [2024-11-22 18:02:41,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:41,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:41,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:41,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:41,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:41,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-11-22 18:02:41,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:41,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:41,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-11-22 18:02:41,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:41,815 INFO L124 PetriNetUnfolderBase]: 165/1189 cut-off events. [2024-11-22 18:02:41,816 INFO L125 PetriNetUnfolderBase]: For 192/359 co-relation queries the response was YES. [2024-11-22 18:02:41,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1757 conditions, 1189 events. 165/1189 cut-off events. For 192/359 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8130 event pairs, 88 based on Foata normal form. 3/1059 useless extension candidates. Maximal degree in co-relation 1425. Up to 269 conditions per place. [2024-11-22 18:02:41,819 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2024-11-22 18:02:41,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 408 flow [2024-11-22 18:02:41,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-11-22 18:02:41,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9280575539568345 [2024-11-22 18:02:41,821 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 324 flow. Second operand 3 states and 387 transitions. [2024-11-22 18:02:41,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 408 flow [2024-11-22 18:02:41,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 146 transitions, 398 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:41,823 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 370 flow [2024-11-22 18:02:41,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-11-22 18:02:41,824 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 5 predicate places. [2024-11-22 18:02:41,824 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 370 flow [2024-11-22 18:02:41,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:41,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:41,824 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:41,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 18:02:41,824 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:41,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1752921541, now seen corresponding path program 1 times [2024-11-22 18:02:41,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:41,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278652551] [2024-11-22 18:02:41,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:41,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:02:41,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:41,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278652551] [2024-11-22 18:02:41,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278652551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:41,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:41,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:42,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896549434] [2024-11-22 18:02:42,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:42,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:42,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:42,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:42,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:42,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 139 [2024-11-22 18:02:42,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:42,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:42,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 139 [2024-11-22 18:02:42,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:42,356 INFO L124 PetriNetUnfolderBase]: 463/2595 cut-off events. [2024-11-22 18:02:42,356 INFO L125 PetriNetUnfolderBase]: For 408/466 co-relation queries the response was YES. [2024-11-22 18:02:42,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 2595 events. 463/2595 cut-off events. For 408/466 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 22408 event pairs, 251 based on Foata normal form. 3/2378 useless extension candidates. Maximal degree in co-relation 3254. Up to 490 conditions per place. [2024-11-22 18:02:42,367 INFO L140 encePairwiseOnDemand]: 132/139 looper letters, 43 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-22 18:02:42,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 494 flow [2024-11-22 18:02:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:42,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:42,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2024-11-22 18:02:42,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937649880095923 [2024-11-22 18:02:42,369 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 370 flow. Second operand 6 states and 662 transitions. [2024-11-22 18:02:42,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 494 flow [2024-11-22 18:02:42,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:42,372 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 362 flow [2024-11-22 18:02:42,372 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2024-11-22 18:02:42,373 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-11-22 18:02:42,373 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 362 flow [2024-11-22 18:02:42,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:42,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:42,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:42,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 18:02:42,374 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:42,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1171198917, now seen corresponding path program 1 times [2024-11-22 18:02:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:42,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507869356] [2024-11-22 18:02:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:42,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:42,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507869356] [2024-11-22 18:02:42,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507869356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:02:42,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311303666] [2024-11-22 18:02:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:42,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:02:42,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:02:42,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:02:42,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:02:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:42,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 18:02:42,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:02:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:42,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:02:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:42,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311303666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:02:42,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:02:42,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-22 18:02:42,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582796811] [2024-11-22 18:02:42,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:02:42,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 18:02:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:42,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 18:02:42,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 18:02:42,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 139 [2024-11-22 18:02:42,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 362 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:42,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:42,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 139 [2024-11-22 18:02:42,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:42,961 INFO L124 PetriNetUnfolderBase]: 162/1358 cut-off events. [2024-11-22 18:02:42,962 INFO L125 PetriNetUnfolderBase]: For 135/158 co-relation queries the response was YES. [2024-11-22 18:02:42,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1358 events. 162/1358 cut-off events. For 135/158 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8998 event pairs, 60 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 1029. Up to 161 conditions per place. [2024-11-22 18:02:42,968 INFO L140 encePairwiseOnDemand]: 129/139 looper letters, 32 selfloop transitions, 10 changer transitions 3/162 dead transitions. [2024-11-22 18:02:42,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 162 transitions, 500 flow [2024-11-22 18:02:42,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 18:02:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 18:02:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 966 transitions. [2024-11-22 18:02:42,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8687050359712231 [2024-11-22 18:02:42,971 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 362 flow. Second operand 8 states and 966 transitions. [2024-11-22 18:02:42,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 162 transitions, 500 flow [2024-11-22 18:02:42,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 162 transitions, 488 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:42,974 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 390 flow [2024-11-22 18:02:42,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=390, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2024-11-22 18:02:42,974 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-11-22 18:02:42,975 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 390 flow [2024-11-22 18:02:42,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:42,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:42,975 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:42,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 18:02:43,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 18:02:43,177 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:43,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:43,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1014058976, now seen corresponding path program 1 times [2024-11-22 18:02:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:43,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347437447] [2024-11-22 18:02:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:43,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:02:43,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:43,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347437447] [2024-11-22 18:02:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347437447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:43,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:43,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:43,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454015157] [2024-11-22 18:02:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:43,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:43,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2024-11-22 18:02:43,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:43,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:43,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2024-11-22 18:02:43,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:43,659 INFO L124 PetriNetUnfolderBase]: 329/1886 cut-off events. [2024-11-22 18:02:43,659 INFO L125 PetriNetUnfolderBase]: For 151/186 co-relation queries the response was YES. [2024-11-22 18:02:43,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2951 conditions, 1886 events. 329/1886 cut-off events. For 151/186 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 14576 event pairs, 186 based on Foata normal form. 0/1757 useless extension candidates. Maximal degree in co-relation 2205. Up to 364 conditions per place. [2024-11-22 18:02:43,666 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 36 selfloop transitions, 5 changer transitions 1/157 dead transitions. [2024-11-22 18:02:43,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 502 flow [2024-11-22 18:02:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:43,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2024-11-22 18:02:43,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.841726618705036 [2024-11-22 18:02:43,672 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 390 flow. Second operand 6 states and 702 transitions. [2024-11-22 18:02:43,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 502 flow [2024-11-22 18:02:43,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 157 transitions, 496 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 18:02:43,675 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 387 flow [2024-11-22 18:02:43,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2024-11-22 18:02:43,675 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 12 predicate places. [2024-11-22 18:02:43,676 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 387 flow [2024-11-22 18:02:43,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:43,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:43,676 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 18:02:43,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 18:02:43,677 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:43,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:43,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1969955840, now seen corresponding path program 1 times [2024-11-22 18:02:43,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:43,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280361617] [2024-11-22 18:02:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:43,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 18:02:43,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:43,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280361617] [2024-11-22 18:02:43,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280361617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:43,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:43,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817309169] [2024-11-22 18:02:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:43,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:43,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:43,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:43,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:43,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-11-22 18:02:43,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:43,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:43,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-11-22 18:02:43,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:43,795 INFO L124 PetriNetUnfolderBase]: 56/879 cut-off events. [2024-11-22 18:02:43,795 INFO L125 PetriNetUnfolderBase]: For 247/475 co-relation queries the response was YES. [2024-11-22 18:02:43,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 879 events. 56/879 cut-off events. For 247/475 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5330 event pairs, 30 based on Foata normal form. 2/855 useless extension candidates. Maximal degree in co-relation 1192. Up to 119 conditions per place. [2024-11-22 18:02:43,800 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 1/147 dead transitions. [2024-11-22 18:02:43,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 147 transitions, 464 flow [2024-11-22 18:02:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-11-22 18:02:43,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256594724220624 [2024-11-22 18:02:43,801 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 387 flow. Second operand 3 states and 386 transitions. [2024-11-22 18:02:43,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 147 transitions, 464 flow [2024-11-22 18:02:43,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 147 transitions, 454 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:43,804 INFO L231 Difference]: Finished difference. Result has 150 places, 143 transitions, 427 flow [2024-11-22 18:02:43,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2024-11-22 18:02:43,804 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-11-22 18:02:43,804 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 427 flow [2024-11-22 18:02:43,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:43,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:43,805 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 18:02:43,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 18:02:43,805 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:43,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:43,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2139877206, now seen corresponding path program 1 times [2024-11-22 18:02:43,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:43,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413045338] [2024-11-22 18:02:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:43,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 18:02:43,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:43,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413045338] [2024-11-22 18:02:43,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413045338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:43,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:43,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:02:43,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116601893] [2024-11-22 18:02:43,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:43,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:43,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:43,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:43,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:43,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 139 [2024-11-22 18:02:43,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:43,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:43,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 139 [2024-11-22 18:02:43,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:43,936 INFO L124 PetriNetUnfolderBase]: 12/537 cut-off events. [2024-11-22 18:02:43,936 INFO L125 PetriNetUnfolderBase]: For 125/145 co-relation queries the response was YES. [2024-11-22 18:02:43,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 537 events. 12/537 cut-off events. For 125/145 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2275 event pairs, 2 based on Foata normal form. 4/534 useless extension candidates. Maximal degree in co-relation 580. Up to 26 conditions per place. [2024-11-22 18:02:43,938 INFO L140 encePairwiseOnDemand]: 135/139 looper letters, 8 selfloop transitions, 4 changer transitions 4/144 dead transitions. [2024-11-22 18:02:43,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 144 transitions, 448 flow [2024-11-22 18:02:43,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-22 18:02:43,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.947242206235012 [2024-11-22 18:02:43,939 INFO L175 Difference]: Start difference. First operand has 150 places, 143 transitions, 427 flow. Second operand 3 states and 395 transitions. [2024-11-22 18:02:43,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 144 transitions, 448 flow [2024-11-22 18:02:43,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 144 transitions, 436 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:43,941 INFO L231 Difference]: Finished difference. Result has 150 places, 137 transitions, 387 flow [2024-11-22 18:02:43,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=150, PETRI_TRANSITIONS=137} [2024-11-22 18:02:43,942 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-11-22 18:02:43,942 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 137 transitions, 387 flow [2024-11-22 18:02:43,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:43,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:43,942 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-22 18:02:43,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 18:02:43,943 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:02:43,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash -781949816, now seen corresponding path program 1 times [2024-11-22 18:02:43,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:43,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109546174] [2024-11-22 18:02:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:43,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:02:43,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:02:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:02:44,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:02:44,017 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:02:44,017 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-22 18:02:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-22 18:02:44,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 18:02:44,019 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:44,020 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:02:44,020 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-22 18:02:44,040 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-22 18:02:44,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 157 transitions, 341 flow [2024-11-22 18:02:44,083 INFO L124 PetriNetUnfolderBase]: 21/527 cut-off events. [2024-11-22 18:02:44,083 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-22 18:02:44,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 527 events. 21/527 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1319 event pairs, 1 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 316. Up to 16 conditions per place. [2024-11-22 18:02:44,084 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 157 transitions, 341 flow [2024-11-22 18:02:44,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 157 transitions, 341 flow [2024-11-22 18:02:44,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:02:44,091 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;@185a3e8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:02:44,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-22 18:02:44,092 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:02:44,093 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-22 18:02:44,093 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:02:44,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:44,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:44,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:44,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:44,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1192952569, now seen corresponding path program 1 times [2024-11-22 18:02:44,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:44,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774009195] [2024-11-22 18:02:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:44,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:44,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:44,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774009195] [2024-11-22 18:02:44,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774009195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:44,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:44,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:44,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569126539] [2024-11-22 18:02:44,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:44,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:44,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:44,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:44,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:44,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 157 [2024-11-22 18:02:44,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 157 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:44,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:44,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 157 [2024-11-22 18:02:44,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:44,531 INFO L124 PetriNetUnfolderBase]: 1071/4747 cut-off events. [2024-11-22 18:02:44,531 INFO L125 PetriNetUnfolderBase]: For 407/794 co-relation queries the response was YES. [2024-11-22 18:02:44,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6662 conditions, 4747 events. 1071/4747 cut-off events. For 407/794 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 42113 event pairs, 542 based on Foata normal form. 171/4389 useless extension candidates. Maximal degree in co-relation 5220. Up to 1110 conditions per place. [2024-11-22 18:02:44,546 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 23 selfloop transitions, 5 changer transitions 1/164 dead transitions. [2024-11-22 18:02:44,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 164 transitions, 411 flow [2024-11-22 18:02:44,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2024-11-22 18:02:44,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9341825902335457 [2024-11-22 18:02:44,548 INFO L175 Difference]: Start difference. First operand has 158 places, 157 transitions, 341 flow. Second operand 3 states and 440 transitions. [2024-11-22 18:02:44,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 164 transitions, 411 flow [2024-11-22 18:02:44,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 164 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:02:44,551 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 371 flow [2024-11-22 18:02:44,551 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-22 18:02:44,552 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 4 predicate places. [2024-11-22 18:02:44,552 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 371 flow [2024-11-22 18:02:44,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:44,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:44,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:44,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 18:02:44,552 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:44,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:44,553 INFO L85 PathProgramCache]: Analyzing trace with hash -622230047, now seen corresponding path program 1 times [2024-11-22 18:02:44,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:44,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770777656] [2024-11-22 18:02:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:44,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:44,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:44,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770777656] [2024-11-22 18:02:44,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770777656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:44,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:44,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:44,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454400577] [2024-11-22 18:02:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:44,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:02:44,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:44,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:02:44,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:02:44,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2024-11-22 18:02:44,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 371 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:44,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:44,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2024-11-22 18:02:44,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:45,281 INFO L124 PetriNetUnfolderBase]: 1404/6861 cut-off events. [2024-11-22 18:02:45,281 INFO L125 PetriNetUnfolderBase]: For 443/458 co-relation queries the response was YES. [2024-11-22 18:02:45,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9759 conditions, 6861 events. 1404/6861 cut-off events. For 443/458 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 66613 event pairs, 1086 based on Foata normal form. 1/6146 useless extension candidates. Maximal degree in co-relation 6125. Up to 1847 conditions per place. [2024-11-22 18:02:45,312 INFO L140 encePairwiseOnDemand]: 149/157 looper letters, 24 selfloop transitions, 2 changer transitions 5/165 dead transitions. [2024-11-22 18:02:45,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 165 transitions, 449 flow [2024-11-22 18:02:45,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2024-11-22 18:02:45,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8683651804670913 [2024-11-22 18:02:45,314 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 371 flow. Second operand 6 states and 818 transitions. [2024-11-22 18:02:45,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 165 transitions, 449 flow [2024-11-22 18:02:45,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:45,319 INFO L231 Difference]: Finished difference. Result has 168 places, 158 transitions, 383 flow [2024-11-22 18:02:45,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=383, PETRI_PLACES=168, PETRI_TRANSITIONS=158} [2024-11-22 18:02:45,320 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 10 predicate places. [2024-11-22 18:02:45,320 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 158 transitions, 383 flow [2024-11-22 18:02:45,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:45,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:45,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:45,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 18:02:45,321 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:45,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:45,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1897426620, now seen corresponding path program 1 times [2024-11-22 18:02:45,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:45,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397611947] [2024-11-22 18:02:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:45,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:45,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:45,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397611947] [2024-11-22 18:02:45,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397611947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:45,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:45,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:45,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411482251] [2024-11-22 18:02:45,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:45,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:45,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:45,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:45,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:45,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 157 [2024-11-22 18:02:45,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 158 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:45,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:45,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 157 [2024-11-22 18:02:45,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:46,920 INFO L124 PetriNetUnfolderBase]: 3152/13178 cut-off events. [2024-11-22 18:02:46,920 INFO L125 PetriNetUnfolderBase]: For 507/508 co-relation queries the response was YES. [2024-11-22 18:02:46,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19322 conditions, 13178 events. 3152/13178 cut-off events. For 507/508 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 142874 event pairs, 2465 based on Foata normal form. 0/11518 useless extension candidates. Maximal degree in co-relation 19209. Up to 3699 conditions per place. [2024-11-22 18:02:46,986 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 61 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-11-22 18:02:46,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 181 transitions, 561 flow [2024-11-22 18:02:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:46,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:46,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2024-11-22 18:02:46,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7834394904458599 [2024-11-22 18:02:46,988 INFO L175 Difference]: Start difference. First operand has 168 places, 158 transitions, 383 flow. Second operand 6 states and 738 transitions. [2024-11-22 18:02:46,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 181 transitions, 561 flow [2024-11-22 18:02:46,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 181 transitions, 549 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-22 18:02:46,994 INFO L231 Difference]: Finished difference. Result has 165 places, 157 transitions, 379 flow [2024-11-22 18:02:46,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=165, PETRI_TRANSITIONS=157} [2024-11-22 18:02:46,995 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 7 predicate places. [2024-11-22 18:02:46,995 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 157 transitions, 379 flow [2024-11-22 18:02:46,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:46,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:46,995 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:46,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 18:02:46,995 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:46,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash 555839182, now seen corresponding path program 1 times [2024-11-22 18:02:46,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:46,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679605644] [2024-11-22 18:02:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:47,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:47,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679605644] [2024-11-22 18:02:47,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679605644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:47,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:47,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:47,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284577350] [2024-11-22 18:02:47,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:47,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:47,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:47,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 157 [2024-11-22 18:02:47,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 157 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:47,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:47,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 157 [2024-11-22 18:02:47,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:48,852 INFO L124 PetriNetUnfolderBase]: 3111/12735 cut-off events. [2024-11-22 18:02:48,852 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-11-22 18:02:48,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18633 conditions, 12735 events. 3111/12735 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 138436 event pairs, 1733 based on Foata normal form. 0/11154 useless extension candidates. Maximal degree in co-relation 5021. Up to 3533 conditions per place. [2024-11-22 18:02:48,903 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 58 selfloop transitions, 5 changer transitions 0/180 dead transitions. [2024-11-22 18:02:48,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 180 transitions, 551 flow [2024-11-22 18:02:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:48,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:48,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2024-11-22 18:02:48,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940552016985138 [2024-11-22 18:02:48,905 INFO L175 Difference]: Start difference. First operand has 165 places, 157 transitions, 379 flow. Second operand 6 states and 748 transitions. [2024-11-22 18:02:48,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 180 transitions, 551 flow [2024-11-22 18:02:48,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 180 transitions, 541 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:48,908 INFO L231 Difference]: Finished difference. Result has 164 places, 156 transitions, 377 flow [2024-11-22 18:02:48,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=377, PETRI_PLACES=164, PETRI_TRANSITIONS=156} [2024-11-22 18:02:48,909 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 6 predicate places. [2024-11-22 18:02:48,909 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 156 transitions, 377 flow [2024-11-22 18:02:48,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:48,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:48,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:48,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 18:02:48,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:48,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1197595298, now seen corresponding path program 1 times [2024-11-22 18:02:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:48,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514535839] [2024-11-22 18:02:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:48,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:48,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514535839] [2024-11-22 18:02:48,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514535839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:48,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:48,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295113522] [2024-11-22 18:02:48,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:48,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:48,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:48,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:48,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:48,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-11-22 18:02:48,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 156 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:48,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:48,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-11-22 18:02:48,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:49,726 INFO L124 PetriNetUnfolderBase]: 1743/7668 cut-off events. [2024-11-22 18:02:49,727 INFO L125 PetriNetUnfolderBase]: For 1692/3630 co-relation queries the response was YES. [2024-11-22 18:02:49,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11998 conditions, 7668 events. 1743/7668 cut-off events. For 1692/3630 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 78839 event pairs, 967 based on Foata normal form. 9/6715 useless extension candidates. Maximal degree in co-relation 10027. Up to 2242 conditions per place. [2024-11-22 18:02:49,759 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 29 selfloop transitions, 9 changer transitions 0/171 dead transitions. [2024-11-22 18:02:49,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 171 transitions, 511 flow [2024-11-22 18:02:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:49,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:49,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2024-11-22 18:02:49,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256900212314225 [2024-11-22 18:02:49,761 INFO L175 Difference]: Start difference. First operand has 164 places, 156 transitions, 377 flow. Second operand 3 states and 436 transitions. [2024-11-22 18:02:49,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 171 transitions, 511 flow [2024-11-22 18:02:49,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 171 transitions, 501 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:49,763 INFO L231 Difference]: Finished difference. Result has 163 places, 163 transitions, 443 flow [2024-11-22 18:02:49,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=163, PETRI_TRANSITIONS=163} [2024-11-22 18:02:49,764 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 5 predicate places. [2024-11-22 18:02:49,764 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 163 transitions, 443 flow [2024-11-22 18:02:49,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:49,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:49,764 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:49,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 18:02:49,764 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:49,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:49,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1851728978, now seen corresponding path program 1 times [2024-11-22 18:02:49,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:49,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982830516] [2024-11-22 18:02:49,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:49,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:02:49,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982830516] [2024-11-22 18:02:49,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982830516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:49,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:49,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:49,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297046452] [2024-11-22 18:02:49,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:49,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:49,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:49,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:49,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:50,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 157 [2024-11-22 18:02:50,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:50,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:50,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 157 [2024-11-22 18:02:50,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:51,982 INFO L124 PetriNetUnfolderBase]: 3779/14522 cut-off events. [2024-11-22 18:02:51,982 INFO L125 PetriNetUnfolderBase]: For 2116/2667 co-relation queries the response was YES. [2024-11-22 18:02:52,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23789 conditions, 14522 events. 3779/14522 cut-off events. For 2116/2667 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 163644 event pairs, 1889 based on Foata normal form. 17/12972 useless extension candidates. Maximal degree in co-relation 18569. Up to 2793 conditions per place. [2024-11-22 18:02:52,067 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 55 selfloop transitions, 5 changer transitions 0/185 dead transitions. [2024-11-22 18:02:52,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 185 transitions, 607 flow [2024-11-22 18:02:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:52,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2024-11-22 18:02:52,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8046709129511678 [2024-11-22 18:02:52,071 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 443 flow. Second operand 6 states and 758 transitions. [2024-11-22 18:02:52,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 185 transitions, 607 flow [2024-11-22 18:02:52,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 185 transitions, 589 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:52,082 INFO L231 Difference]: Finished difference. Result has 164 places, 161 transitions, 431 flow [2024-11-22 18:02:52,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=431, PETRI_PLACES=164, PETRI_TRANSITIONS=161} [2024-11-22 18:02:52,082 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 6 predicate places. [2024-11-22 18:02:52,082 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 161 transitions, 431 flow [2024-11-22 18:02:52,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:52,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:52,084 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:52,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 18:02:52,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:52,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:52,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1225381778, now seen corresponding path program 1 times [2024-11-22 18:02:52,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:52,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412141505] [2024-11-22 18:02:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:52,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:52,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:52,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:52,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412141505] [2024-11-22 18:02:52,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412141505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:02:52,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732298170] [2024-11-22 18:02:52,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:52,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:02:52,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:02:52,314 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:02:52,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:02:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:52,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 18:02:52,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:02:52,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:52,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:02:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:52,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732298170] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:02:52,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:02:52,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-22 18:02:52,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760643468] [2024-11-22 18:02:52,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:02:52,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 18:02:52,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:52,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 18:02:52,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 18:02:52,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 157 [2024-11-22 18:02:52,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 161 transitions, 431 flow. Second operand has 9 states, 9 states have (on average 131.22222222222223) internal successors, (1181), 9 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:52,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:52,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 157 [2024-11-22 18:02:52,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:53,711 INFO L124 PetriNetUnfolderBase]: 1469/8109 cut-off events. [2024-11-22 18:02:53,712 INFO L125 PetriNetUnfolderBase]: For 958/1181 co-relation queries the response was YES. [2024-11-22 18:02:53,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12401 conditions, 8109 events. 1469/8109 cut-off events. For 958/1181 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 83254 event pairs, 489 based on Foata normal form. 1/7355 useless extension candidates. Maximal degree in co-relation 6723. Up to 1075 conditions per place. [2024-11-22 18:02:53,749 INFO L140 encePairwiseOnDemand]: 147/157 looper letters, 48 selfloop transitions, 10 changer transitions 0/193 dead transitions. [2024-11-22 18:02:53,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 193 transitions, 622 flow [2024-11-22 18:02:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 18:02:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 18:02:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1091 transitions. [2024-11-22 18:02:53,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8686305732484076 [2024-11-22 18:02:53,751 INFO L175 Difference]: Start difference. First operand has 164 places, 161 transitions, 431 flow. Second operand 8 states and 1091 transitions. [2024-11-22 18:02:53,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 193 transitions, 622 flow [2024-11-22 18:02:53,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 193 transitions, 610 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:53,756 INFO L231 Difference]: Finished difference. Result has 169 places, 164 transitions, 465 flow [2024-11-22 18:02:53,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=465, PETRI_PLACES=169, PETRI_TRANSITIONS=164} [2024-11-22 18:02:53,756 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-11-22 18:02:53,757 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 465 flow [2024-11-22 18:02:53,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.22222222222223) internal successors, (1181), 9 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:53,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:53,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:53,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 18:02:53,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:02:53,959 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:53,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1193116621, now seen corresponding path program 1 times [2024-11-22 18:02:53,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:53,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458791244] [2024-11-22 18:02:53,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:53,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:02:54,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:54,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458791244] [2024-11-22 18:02:54,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458791244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:54,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:54,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:02:54,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990129858] [2024-11-22 18:02:54,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:54,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:02:54,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:54,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:02:54,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:02:54,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 157 [2024-11-22 18:02:54,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:54,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:54,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 157 [2024-11-22 18:02:54,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:55,504 INFO L124 PetriNetUnfolderBase]: 2701/10551 cut-off events. [2024-11-22 18:02:55,504 INFO L125 PetriNetUnfolderBase]: For 1004/1407 co-relation queries the response was YES. [2024-11-22 18:02:55,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17213 conditions, 10551 events. 2701/10551 cut-off events. For 1004/1407 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 112259 event pairs, 1410 based on Foata normal form. 1/9499 useless extension candidates. Maximal degree in co-relation 12696. Up to 2113 conditions per place. [2024-11-22 18:02:55,551 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 48 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-11-22 18:02:55,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 187 transitions, 617 flow [2024-11-22 18:02:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:02:55,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:02:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 798 transitions. [2024-11-22 18:02:55,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8471337579617835 [2024-11-22 18:02:55,554 INFO L175 Difference]: Start difference. First operand has 169 places, 164 transitions, 465 flow. Second operand 6 states and 798 transitions. [2024-11-22 18:02:55,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 187 transitions, 617 flow [2024-11-22 18:02:55,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 187 transitions, 611 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 18:02:55,560 INFO L231 Difference]: Finished difference. Result has 170 places, 163 transitions, 467 flow [2024-11-22 18:02:55,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=467, PETRI_PLACES=170, PETRI_TRANSITIONS=163} [2024-11-22 18:02:55,561 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 12 predicate places. [2024-11-22 18:02:55,561 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 163 transitions, 467 flow [2024-11-22 18:02:55,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:55,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:55,562 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 18:02:55,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 18:02:55,562 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:55,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1869097504, now seen corresponding path program 1 times [2024-11-22 18:02:55,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:55,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058313368] [2024-11-22 18:02:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:55,615 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 18:02:55,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:55,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058313368] [2024-11-22 18:02:55,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058313368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:55,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:55,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:55,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050946412] [2024-11-22 18:02:55,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:55,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:55,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:55,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:55,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:55,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-11-22 18:02:55,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 163 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:55,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:55,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-11-22 18:02:55,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:56,562 INFO L124 PetriNetUnfolderBase]: 1086/6184 cut-off events. [2024-11-22 18:02:56,563 INFO L125 PetriNetUnfolderBase]: For 2792/5364 co-relation queries the response was YES. [2024-11-22 18:02:56,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10825 conditions, 6184 events. 1086/6184 cut-off events. For 2792/5364 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 65894 event pairs, 589 based on Foata normal form. 13/5722 useless extension candidates. Maximal degree in co-relation 9709. Up to 1450 conditions per place. [2024-11-22 18:02:56,591 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 31 selfloop transitions, 13 changer transitions 0/179 dead transitions. [2024-11-22 18:02:56,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 179 transitions, 628 flow [2024-11-22 18:02:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:56,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2024-11-22 18:02:56,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235668789808917 [2024-11-22 18:02:56,592 INFO L175 Difference]: Start difference. First operand has 170 places, 163 transitions, 467 flow. Second operand 3 states and 435 transitions. [2024-11-22 18:02:56,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 179 transitions, 628 flow [2024-11-22 18:02:56,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 179 transitions, 618 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:02:56,598 INFO L231 Difference]: Finished difference. Result has 169 places, 172 transitions, 575 flow [2024-11-22 18:02:56,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=169, PETRI_TRANSITIONS=172} [2024-11-22 18:02:56,599 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-11-22 18:02:56,599 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 172 transitions, 575 flow [2024-11-22 18:02:56,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:56,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:56,600 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 18:02:56,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 18:02:56,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:56,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash 902457162, now seen corresponding path program 1 times [2024-11-22 18:02:56,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:56,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251426107] [2024-11-22 18:02:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 18:02:56,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:56,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251426107] [2024-11-22 18:02:56,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251426107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:56,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:56,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:02:56,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870483485] [2024-11-22 18:02:56,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:56,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:56,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:56,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:56,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 157 [2024-11-22 18:02:56,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 172 transitions, 575 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:56,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:56,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 157 [2024-11-22 18:02:56,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:56,849 INFO L124 PetriNetUnfolderBase]: 124/2155 cut-off events. [2024-11-22 18:02:56,849 INFO L125 PetriNetUnfolderBase]: For 750/873 co-relation queries the response was YES. [2024-11-22 18:02:56,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 2155 events. 124/2155 cut-off events. For 750/873 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17270 event pairs, 20 based on Foata normal form. 26/2104 useless extension candidates. Maximal degree in co-relation 1299. Up to 142 conditions per place. [2024-11-22 18:02:56,857 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 12 selfloop transitions, 6 changer transitions 0/167 dead transitions. [2024-11-22 18:02:56,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 167 transitions, 548 flow [2024-11-22 18:02:56,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2024-11-22 18:02:56,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9426751592356688 [2024-11-22 18:02:56,858 INFO L175 Difference]: Start difference. First operand has 169 places, 172 transitions, 575 flow. Second operand 3 states and 444 transitions. [2024-11-22 18:02:56,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 167 transitions, 548 flow [2024-11-22 18:02:56,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 167 transitions, 534 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 18:02:56,862 INFO L231 Difference]: Finished difference. Result has 169 places, 162 transitions, 479 flow [2024-11-22 18:02:56,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=169, PETRI_TRANSITIONS=162} [2024-11-22 18:02:56,862 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-11-22 18:02:56,862 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 162 transitions, 479 flow [2024-11-22 18:02:56,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:56,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:56,863 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-22 18:02:56,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 18:02:56,863 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:56,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:56,863 INFO L85 PathProgramCache]: Analyzing trace with hash 971540065, now seen corresponding path program 1 times [2024-11-22 18:02:56,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:56,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816649045] [2024-11-22 18:02:56,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:56,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:56,900 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-22 18:02:56,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:56,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816649045] [2024-11-22 18:02:56,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816649045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:56,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:56,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:56,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908115373] [2024-11-22 18:02:56,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:56,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:56,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:56,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:56,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:56,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-11-22 18:02:56,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 162 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:56,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:56,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-11-22 18:02:56,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:02:57,139 INFO L124 PetriNetUnfolderBase]: 203/2144 cut-off events. [2024-11-22 18:02:57,139 INFO L125 PetriNetUnfolderBase]: For 1440/1937 co-relation queries the response was YES. [2024-11-22 18:02:57,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3837 conditions, 2144 events. 203/2144 cut-off events. For 1440/1937 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 17858 event pairs, 134 based on Foata normal form. 3/1994 useless extension candidates. Maximal degree in co-relation 3135. Up to 435 conditions per place. [2024-11-22 18:02:57,146 INFO L140 encePairwiseOnDemand]: 152/157 looper letters, 25 selfloop transitions, 5 changer transitions 0/167 dead transitions. [2024-11-22 18:02:57,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 167 transitions, 561 flow [2024-11-22 18:02:57,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:02:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:02:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2024-11-22 18:02:57,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087048832271762 [2024-11-22 18:02:57,148 INFO L175 Difference]: Start difference. First operand has 169 places, 162 transitions, 479 flow. Second operand 3 states and 428 transitions. [2024-11-22 18:02:57,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 167 transitions, 561 flow [2024-11-22 18:02:57,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 167 transitions, 555 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:02:57,151 INFO L231 Difference]: Finished difference. Result has 172 places, 165 transitions, 513 flow [2024-11-22 18:02:57,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=172, PETRI_TRANSITIONS=165} [2024-11-22 18:02:57,154 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 14 predicate places. [2024-11-22 18:02:57,154 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 165 transitions, 513 flow [2024-11-22 18:02:57,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:57,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:57,154 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:57,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 18:02:57,154 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:02:57,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1809063735, now seen corresponding path program 1 times [2024-11-22 18:02:57,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:57,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635611853] [2024-11-22 18:02:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:57,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:02:57,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:02:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:02:57,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:02:57,235 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:02:57,235 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-22 18:02:57,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-22 18:02:57,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-22 18:02:57,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-22 18:02:57,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-22 18:02:57,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-22 18:02:57,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-22 18:02:57,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-22 18:02:57,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-22 18:02:57,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-22 18:02:57,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-22 18:02:57,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 18:02:57,237 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:57,237 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:02:57,237 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-22 18:02:57,253 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-22 18:02:57,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 175 transitions, 390 flow [2024-11-22 18:02:57,319 INFO L124 PetriNetUnfolderBase]: 43/918 cut-off events. [2024-11-22 18:02:57,319 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-22 18:02:57,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 918 events. 43/918 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3073 event pairs, 6 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 547. Up to 32 conditions per place. [2024-11-22 18:02:57,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 175 transitions, 390 flow [2024-11-22 18:02:57,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 175 transitions, 390 flow [2024-11-22 18:02:57,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:02:57,325 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;@185a3e8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:02:57,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-22 18:02:57,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:02:57,328 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-22 18:02:57,328 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:02:57,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:02:57,328 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:02:57,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:02:57,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:02:57,329 INFO L85 PathProgramCache]: Analyzing trace with hash -433409817, now seen corresponding path program 1 times [2024-11-22 18:02:57,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:02:57,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266317711] [2024-11-22 18:02:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:02:57,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:02:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:02:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:02:57,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:02:57,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266317711] [2024-11-22 18:02:57,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266317711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:02:57,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:02:57,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:02:57,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676878606] [2024-11-22 18:02:57,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:02:57,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:02:57,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:02:57,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:02:57,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:02:57,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 175 [2024-11-22 18:02:57,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:02:57,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:02:57,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 175 [2024-11-22 18:02:57,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:01,859 INFO L124 PetriNetUnfolderBase]: 7859/26538 cut-off events. [2024-11-22 18:03:01,860 INFO L125 PetriNetUnfolderBase]: For 2378/5103 co-relation queries the response was YES. [2024-11-22 18:03:01,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38888 conditions, 26538 events. 7859/26538 cut-off events. For 2378/5103 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 305358 event pairs, 4292 based on Foata normal form. 798/24607 useless extension candidates. Maximal degree in co-relation 30851. Up to 7653 conditions per place. [2024-11-22 18:03:02,016 INFO L140 encePairwiseOnDemand]: 165/175 looper letters, 30 selfloop transitions, 6 changer transitions 1/185 dead transitions. [2024-11-22 18:03:02,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 185 transitions, 482 flow [2024-11-22 18:03:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2024-11-22 18:03:02,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9276190476190476 [2024-11-22 18:03:02,021 INFO L175 Difference]: Start difference. First operand has 177 places, 175 transitions, 390 flow. Second operand 3 states and 487 transitions. [2024-11-22 18:03:02,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 185 transitions, 482 flow [2024-11-22 18:03:02,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:03:02,029 INFO L231 Difference]: Finished difference. Result has 181 places, 176 transitions, 428 flow [2024-11-22 18:03:02,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=181, PETRI_TRANSITIONS=176} [2024-11-22 18:03:02,034 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 4 predicate places. [2024-11-22 18:03:02,034 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 176 transitions, 428 flow [2024-11-22 18:03:02,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:02,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:02,034 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:02,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 18:03:02,034 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:03:02,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:02,035 INFO L85 PathProgramCache]: Analyzing trace with hash -846080095, now seen corresponding path program 1 times [2024-11-22 18:03:02,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:02,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883574020] [2024-11-22 18:03:02,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:02,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:02,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:02,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883574020] [2024-11-22 18:03:02,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883574020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:02,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:02,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:02,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900678270] [2024-11-22 18:03:02,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:02,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:03:02,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:02,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:03:02,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:03:02,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 175 [2024-11-22 18:03:02,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 176 transitions, 428 flow. Second operand has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:02,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:02,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 175 [2024-11-22 18:03:02,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:09,583 INFO L124 PetriNetUnfolderBase]: 9343/35816 cut-off events. [2024-11-22 18:03:09,587 INFO L125 PetriNetUnfolderBase]: For 2632/2756 co-relation queries the response was YES. [2024-11-22 18:03:09,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52733 conditions, 35816 events. 9343/35816 cut-off events. For 2632/2756 co-relation queries the response was YES. Maximal size of possible extension queue 864. Compared 443703 event pairs, 7523 based on Foata normal form. 1/31567 useless extension candidates. Maximal degree in co-relation 32440. Up to 10778 conditions per place. [2024-11-22 18:03:09,998 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 28 selfloop transitions, 2 changer transitions 5/184 dead transitions. [2024-11-22 18:03:09,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 184 transitions, 514 flow [2024-11-22 18:03:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:03:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:03:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 906 transitions. [2024-11-22 18:03:09,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8628571428571429 [2024-11-22 18:03:10,000 INFO L175 Difference]: Start difference. First operand has 181 places, 176 transitions, 428 flow. Second operand 6 states and 906 transitions. [2024-11-22 18:03:10,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 184 transitions, 514 flow [2024-11-22 18:03:10,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 184 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:10,060 INFO L231 Difference]: Finished difference. Result has 187 places, 177 transitions, 438 flow [2024-11-22 18:03:10,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=187, PETRI_TRANSITIONS=177} [2024-11-22 18:03:10,061 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 10 predicate places. [2024-11-22 18:03:10,061 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 177 transitions, 438 flow [2024-11-22 18:03:10,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:10,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:10,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:10,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 18:03:10,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:03:10,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash -746957397, now seen corresponding path program 1 times [2024-11-22 18:03:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706536599] [2024-11-22 18:03:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:10,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706536599] [2024-11-22 18:03:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706536599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:10,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:10,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:10,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677538445] [2024-11-22 18:03:10,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:10,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:03:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:03:10,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:03:10,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 175 [2024-11-22 18:03:10,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 177 transitions, 438 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) [2024-11-22 18:03:10,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:10,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 175 [2024-11-22 18:03:10,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:25,992 INFO L124 PetriNetUnfolderBase]: 20475/70474 cut-off events. [2024-11-22 18:03:25,993 INFO L125 PetriNetUnfolderBase]: For 2766/2782 co-relation queries the response was YES. [2024-11-22 18:03:26,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105344 conditions, 70474 events. 20475/70474 cut-off events. For 2766/2782 co-relation queries the response was YES. Maximal size of possible extension queue 1690. Compared 938407 event pairs, 16494 based on Foata normal form. 0/60691 useless extension candidates. Maximal degree in co-relation 105230. Up to 21481 conditions per place. [2024-11-22 18:03:26,835 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 73 selfloop transitions, 5 changer transitions 0/208 dead transitions. [2024-11-22 18:03:26,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 208 transitions, 656 flow [2024-11-22 18:03:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:03:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:03:26,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 834 transitions. [2024-11-22 18:03:26,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7942857142857143 [2024-11-22 18:03:26,842 INFO L175 Difference]: Start difference. First operand has 187 places, 177 transitions, 438 flow. Second operand 6 states and 834 transitions. [2024-11-22 18:03:26,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 208 transitions, 656 flow [2024-11-22 18:03:26,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 208 transitions, 644 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-22 18:03:26,992 INFO L231 Difference]: Finished difference. Result has 184 places, 176 transitions, 434 flow [2024-11-22 18:03:26,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=434, PETRI_PLACES=184, PETRI_TRANSITIONS=176} [2024-11-22 18:03:26,993 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 7 predicate places. [2024-11-22 18:03:26,993 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 176 transitions, 434 flow [2024-11-22 18:03:26,993 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) [2024-11-22 18:03:26,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:26,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:26,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 18:03:26,997 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:03:26,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:26,998 INFO L85 PathProgramCache]: Analyzing trace with hash -230722467, now seen corresponding path program 1 times [2024-11-22 18:03:26,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:26,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138157171] [2024-11-22 18:03:26,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:26,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:27,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:27,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:27,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138157171] [2024-11-22 18:03:27,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138157171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:27,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:27,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:27,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644325548] [2024-11-22 18:03:27,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:27,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:03:27,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:27,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:03:27,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:03:27,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 175 [2024-11-22 18:03:27,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 176 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:27,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:27,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 175 [2024-11-22 18:03:27,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:38,349 INFO L124 PetriNetUnfolderBase]: 21685/51607 cut-off events. [2024-11-22 18:03:38,350 INFO L125 PetriNetUnfolderBase]: For 2346/2346 co-relation queries the response was YES. [2024-11-22 18:03:38,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86514 conditions, 51607 events. 21685/51607 cut-off events. For 2346/2346 co-relation queries the response was YES. Maximal size of possible extension queue 1961. Compared 587153 event pairs, 3534 based on Foata normal form. 0/45288 useless extension candidates. Maximal degree in co-relation 15703. Up to 25048 conditions per place. [2024-11-22 18:03:38,795 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 70 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2024-11-22 18:03:38,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 207 transitions, 646 flow [2024-11-22 18:03:38,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:03:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:03:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2024-11-22 18:03:38,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8038095238095239 [2024-11-22 18:03:38,806 INFO L175 Difference]: Start difference. First operand has 184 places, 176 transitions, 434 flow. Second operand 6 states and 844 transitions. [2024-11-22 18:03:38,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 207 transitions, 646 flow [2024-11-22 18:03:38,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 207 transitions, 636 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:03:38,821 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 432 flow [2024-11-22 18:03:38,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=432, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2024-11-22 18:03:38,822 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 6 predicate places. [2024-11-22 18:03:38,822 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 432 flow [2024-11-22 18:03:38,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:38,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:38,826 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:38,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 18:03:38,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:03:38,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1069633713, now seen corresponding path program 1 times [2024-11-22 18:03:38,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:38,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162242656] [2024-11-22 18:03:38,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:38,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:38,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:38,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162242656] [2024-11-22 18:03:38,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162242656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:38,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:38,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:38,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109321965] [2024-11-22 18:03:38,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:38,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:38,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:38,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:38,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:38,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 175 [2024-11-22 18:03:38,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:38,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:38,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 175 [2024-11-22 18:03:38,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:47,523 INFO L124 PetriNetUnfolderBase]: 13641/46120 cut-off events. [2024-11-22 18:03:47,527 INFO L125 PetriNetUnfolderBase]: For 11665/23311 co-relation queries the response was YES. [2024-11-22 18:03:47,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75500 conditions, 46120 events. 13641/46120 cut-off events. For 11665/23311 co-relation queries the response was YES. Maximal size of possible extension queue 1527. Compared 590368 event pairs, 7860 based on Foata normal form. 33/40368 useless extension candidates. Maximal degree in co-relation 62457. Up to 15890 conditions per place. [2024-11-22 18:03:47,813 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 39 selfloop transitions, 11 changer transitions 0/196 dead transitions. [2024-11-22 18:03:47,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 196 transitions, 618 flow [2024-11-22 18:03:47,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:47,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:47,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-22 18:03:47,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9238095238095239 [2024-11-22 18:03:47,815 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 432 flow. Second operand 3 states and 485 transitions. [2024-11-22 18:03:47,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 196 transitions, 618 flow [2024-11-22 18:03:47,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 196 transitions, 608 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:03:47,823 INFO L231 Difference]: Finished difference. Result has 182 places, 184 transitions, 518 flow [2024-11-22 18:03:47,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=182, PETRI_TRANSITIONS=184} [2024-11-22 18:03:47,824 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 5 predicate places. [2024-11-22 18:03:47,824 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 184 transitions, 518 flow [2024-11-22 18:03:47,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:47,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:47,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:47,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-22 18:03:47,825 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:03:47,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1301449457, now seen corresponding path program 1 times [2024-11-22 18:03:47,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:47,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62367493] [2024-11-22 18:03:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:03:48,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:48,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62367493] [2024-11-22 18:03:48,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62367493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:48,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:48,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:48,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399450810] [2024-11-22 18:03:48,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:48,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:03:48,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:48,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:03:48,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:03:48,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 175 [2024-11-22 18:03:48,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:48,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:48,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 175 [2024-11-22 18:03:48,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand