./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c -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 3855d6da0b439f4c6a497e897f140f408df8c7fd65e3042f0fafae1979048a3d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:30:48,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:30:48,152 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:30:48,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:30:48,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:30:48,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:30:48,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:30:48,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:30:48,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:30:48,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:30:48,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:30:48,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:30:48,197 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:30:48,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:30:48,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:30:48,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:30:48,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:30:48,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:30:48,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:30:48,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:30:48,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:30:48,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:30:48,205 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:30:48,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:30:48,206 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:30:48,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:30:48,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:30:48,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:30:48,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:30:48,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:30:48,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:30:48,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:30:48,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:30:48,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:30:48,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:30:48,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:30:48,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:30:48,210 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:30:48,210 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:30:48,211 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:30:48,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:30:48,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3855d6da0b439f4c6a497e897f140f408df8c7fd65e3042f0fafae1979048a3d [2024-10-24 15:30:48,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:30:48,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:30:48,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:30:48,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:30:48,549 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:30:48,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2024-10-24 15:30:50,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:30:50,277 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:30:50,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2024-10-24 15:30:50,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51a4da9b/a19c7b5de30e489abc2fa1123a6ea9a4/FLAG29850dbb8 [2024-10-24 15:30:50,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51a4da9b/a19c7b5de30e489abc2fa1123a6ea9a4 [2024-10-24 15:30:50,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:30:50,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:30:50,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:30:50,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:30:50,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:30:50,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca5dac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50, skipping insertion in model container [2024-10-24 15:30:50,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:30:50,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:30:50,646 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:30:50,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:30:50,737 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:30:50,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50 WrapperNode [2024-10-24 15:30:50,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:30:50,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:30:50,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:30:50,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:30:50,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,811 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 848 [2024-10-24 15:30:50,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:30:50,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:30:50,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:30:50,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:30:50,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,895 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:30:50,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:30:50,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:30:50,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:30:50,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (1/1) ... [2024-10-24 15:30:50,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:30:50,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:30:50,953 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) [2024-10-24 15:30:50,957 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 [2024-10-24 15:30:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:30:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 15:30:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 15:30:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 15:30:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 15:30:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 15:30:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 15:30:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:30:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:30:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:30:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:30:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:30:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:30:51,012 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:30:51,191 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:30:51,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:30:52,312 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:30:52,312 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:30:52,363 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:30:52,366 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-24 15:30:52,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:30:52 BoogieIcfgContainer [2024-10-24 15:30:52,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:30:52,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:30:52,369 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:30:52,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:30:52,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:30:50" (1/3) ... [2024-10-24 15:30:52,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db49426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:30:52, skipping insertion in model container [2024-10-24 15:30:52,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:50" (2/3) ... [2024-10-24 15:30:52,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db49426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:30:52, skipping insertion in model container [2024-10-24 15:30:52,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:30:52" (3/3) ... [2024-10-24 15:30:52,376 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2024-10-24 15:30:52,393 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:30:52,393 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 151 error locations. [2024-10-24 15:30:52,394 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:30:52,587 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-24 15:30:52,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1064 places, 1112 transitions, 2245 flow [2024-10-24 15:30:53,217 INFO L124 PetriNetUnfolderBase]: 58/1109 cut-off events. [2024-10-24 15:30:53,218 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 15:30:53,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122 conditions, 1109 events. 58/1109 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3842 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 849. Up to 2 conditions per place. [2024-10-24 15:30:53,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 1064 places, 1112 transitions, 2245 flow [2024-10-24 15:30:53,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1041 places, 1086 transitions, 2190 flow [2024-10-24 15:30:53,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:30:53,328 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;@4816a342, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:30:53,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 283 error locations. [2024-10-24 15:30:53,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:30:53,335 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-10-24 15:30:53,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:30:53,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:53,336 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] [2024-10-24 15:30:53,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:30:53,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:53,343 INFO L85 PathProgramCache]: Analyzing trace with hash 149958739, now seen corresponding path program 1 times [2024-10-24 15:30:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:53,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060986488] [2024-10-24 15:30:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:53,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:53,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060986488] [2024-10-24 15:30:53,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060986488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:53,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:53,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561114529] [2024-10-24 15:30:53,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:53,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:53,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:53,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:53,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:53,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:30:53,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 1086 transitions, 2190 flow. Second operand has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:30:53,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:53,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:30:53,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:30:57,888 INFO L124 PetriNetUnfolderBase]: 612/12182 cut-off events. [2024-10-24 15:30:57,888 INFO L125 PetriNetUnfolderBase]: For 67/85 co-relation queries the response was YES. [2024-10-24 15:30:58,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12467 conditions, 12182 events. 612/12182 cut-off events. For 67/85 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 122904 event pairs, 95 based on Foata normal form. 282/9859 useless extension candidates. Maximal degree in co-relation 12186. Up to 185 conditions per place. [2024-10-24 15:30:58,171 INFO L140 encePairwiseOnDemand]: 1091/1112 looper letters, 19 selfloop transitions, 2 changer transitions 2/1067 dead transitions. [2024-10-24 15:30:58,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1042 places, 1067 transitions, 2194 flow [2024-10-24 15:30:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:30:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:30:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3247 transitions. [2024-10-24 15:30:58,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9733213429256595 [2024-10-24 15:30:58,204 INFO L175 Difference]: Start difference. First operand has 1041 places, 1086 transitions, 2190 flow. Second operand 3 states and 3247 transitions. [2024-10-24 15:30:58,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1042 places, 1067 transitions, 2194 flow [2024-10-24 15:30:58,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1036 places, 1067 transitions, 2182 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 15:30:58,237 INFO L231 Difference]: Finished difference. Result has 1036 places, 1065 transitions, 2140 flow [2024-10-24 15:30:58,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2140, PETRI_DIFFERENCE_MINUEND_PLACES=1034, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1067, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1065, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2140, PETRI_PLACES=1036, PETRI_TRANSITIONS=1065} [2024-10-24 15:30:58,247 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -5 predicate places. [2024-10-24 15:30:58,247 INFO L471 AbstractCegarLoop]: Abstraction has has 1036 places, 1065 transitions, 2140 flow [2024-10-24 15:30:58,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:30:58,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:58,251 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] [2024-10-24 15:30:58,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:30:58,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:30:58,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash 281971922, now seen corresponding path program 1 times [2024-10-24 15:30:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057578571] [2024-10-24 15:30:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:58,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:58,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057578571] [2024-10-24 15:30:58,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057578571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:58,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:58,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:58,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812199845] [2024-10-24 15:30:58,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:58,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:58,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:58,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:58,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:58,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:30:58,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1036 places, 1065 transitions, 2140 flow. Second operand has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:30:58,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:58,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:30:58,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:00,100 INFO L124 PetriNetUnfolderBase]: 226/4392 cut-off events. [2024-10-24 15:31:00,101 INFO L125 PetriNetUnfolderBase]: For 13/20 co-relation queries the response was YES. [2024-10-24 15:31:00,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4521 conditions, 4392 events. 226/4392 cut-off events. For 13/20 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 32828 event pairs, 45 based on Foata normal form. 0/3471 useless extension candidates. Maximal degree in co-relation 4480. Up to 110 conditions per place. [2024-10-24 15:31:00,245 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 19 selfloop transitions, 2 changer transitions 0/1064 dead transitions. [2024-10-24 15:31:00,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1035 places, 1064 transitions, 2180 flow [2024-10-24 15:31:00,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:00,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3229 transitions. [2024-10-24 15:31:00,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.967925659472422 [2024-10-24 15:31:00,253 INFO L175 Difference]: Start difference. First operand has 1036 places, 1065 transitions, 2140 flow. Second operand 3 states and 3229 transitions. [2024-10-24 15:31:00,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1035 places, 1064 transitions, 2180 flow [2024-10-24 15:31:00,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1033 places, 1064 transitions, 2176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:00,273 INFO L231 Difference]: Finished difference. Result has 1033 places, 1064 transitions, 2138 flow [2024-10-24 15:31:00,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2134, PETRI_DIFFERENCE_MINUEND_PLACES=1031, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1062, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2138, PETRI_PLACES=1033, PETRI_TRANSITIONS=1064} [2024-10-24 15:31:00,276 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -8 predicate places. [2024-10-24 15:31:00,276 INFO L471 AbstractCegarLoop]: Abstraction has has 1033 places, 1064 transitions, 2138 flow [2024-10-24 15:31:00,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:31:00,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:00,280 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] [2024-10-24 15:31:00,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:31:00,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:00,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:00,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1850467445, now seen corresponding path program 1 times [2024-10-24 15:31:00,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331628101] [2024-10-24 15:31:00,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:00,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:00,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:00,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331628101] [2024-10-24 15:31:00,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331628101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:00,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:00,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:00,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832972683] [2024-10-24 15:31:00,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:00,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:00,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:00,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:00,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:00,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:31:00,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1064 transitions, 2138 flow. Second operand has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:31:00,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:00,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:31:00,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:02,156 INFO L124 PetriNetUnfolderBase]: 240/3577 cut-off events. [2024-10-24 15:31:02,156 INFO L125 PetriNetUnfolderBase]: For 42/75 co-relation queries the response was YES. [2024-10-24 15:31:02,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3776 conditions, 3577 events. 240/3577 cut-off events. For 42/75 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 27187 event pairs, 95 based on Foata normal form. 0/2835 useless extension candidates. Maximal degree in co-relation 3727. Up to 185 conditions per place. [2024-10-24 15:31:02,267 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 19 selfloop transitions, 2 changer transitions 0/1063 dead transitions. [2024-10-24 15:31:02,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1034 places, 1063 transitions, 2178 flow [2024-10-24 15:31:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:02,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3229 transitions. [2024-10-24 15:31:02,275 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.967925659472422 [2024-10-24 15:31:02,275 INFO L175 Difference]: Start difference. First operand has 1033 places, 1064 transitions, 2138 flow. Second operand 3 states and 3229 transitions. [2024-10-24 15:31:02,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1034 places, 1063 transitions, 2178 flow [2024-10-24 15:31:02,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1032 places, 1063 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:02,292 INFO L231 Difference]: Finished difference. Result has 1032 places, 1063 transitions, 2136 flow [2024-10-24 15:31:02,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2132, PETRI_DIFFERENCE_MINUEND_PLACES=1030, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2136, PETRI_PLACES=1032, PETRI_TRANSITIONS=1063} [2024-10-24 15:31:02,295 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -9 predicate places. [2024-10-24 15:31:02,295 INFO L471 AbstractCegarLoop]: Abstraction has has 1032 places, 1063 transitions, 2136 flow [2024-10-24 15:31:02,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:31:02,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:02,298 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] [2024-10-24 15:31:02,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:31:02,298 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:02,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1773364741, now seen corresponding path program 1 times [2024-10-24 15:31:02,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:02,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717984991] [2024-10-24 15:31:02,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:02,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:02,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:02,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717984991] [2024-10-24 15:31:02,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717984991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:02,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:02,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:02,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047297443] [2024-10-24 15:31:02,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:02,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:02,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:02,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:02,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:02,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1112 [2024-10-24 15:31:02,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1032 places, 1063 transitions, 2136 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 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) [2024-10-24 15:31:02,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:02,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1112 [2024-10-24 15:31:02,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:04,176 INFO L124 PetriNetUnfolderBase]: 245/5502 cut-off events. [2024-10-24 15:31:04,176 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-10-24 15:31:04,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5578 conditions, 5502 events. 245/5502 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 43729 event pairs, 16 based on Foata normal form. 0/4349 useless extension candidates. Maximal degree in co-relation 5521. Up to 51 conditions per place. [2024-10-24 15:31:04,349 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 18 selfloop transitions, 2 changer transitions 0/1062 dead transitions. [2024-10-24 15:31:04,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1033 places, 1062 transitions, 2174 flow [2024-10-24 15:31:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:04,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2024-10-24 15:31:04,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9685251798561151 [2024-10-24 15:31:04,357 INFO L175 Difference]: Start difference. First operand has 1032 places, 1063 transitions, 2136 flow. Second operand 3 states and 3231 transitions. [2024-10-24 15:31:04,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1033 places, 1062 transitions, 2174 flow [2024-10-24 15:31:04,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1031 places, 1062 transitions, 2170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:04,375 INFO L231 Difference]: Finished difference. Result has 1031 places, 1062 transitions, 2134 flow [2024-10-24 15:31:04,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=1029, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2134, PETRI_PLACES=1031, PETRI_TRANSITIONS=1062} [2024-10-24 15:31:04,378 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -10 predicate places. [2024-10-24 15:31:04,378 INFO L471 AbstractCegarLoop]: Abstraction has has 1031 places, 1062 transitions, 2134 flow [2024-10-24 15:31:04,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 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) [2024-10-24 15:31:04,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:04,381 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] [2024-10-24 15:31:04,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:31:04,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:04,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:04,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2065779890, now seen corresponding path program 1 times [2024-10-24 15:31:04,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:04,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29342133] [2024-10-24 15:31:04,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:04,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:04,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:04,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29342133] [2024-10-24 15:31:04,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29342133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:04,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:04,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:04,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969431051] [2024-10-24 15:31:04,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:04,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:04,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:04,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1073 out of 1112 [2024-10-24 15:31:04,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1031 places, 1062 transitions, 2134 flow. Second operand has 3 states, 3 states have (on average 1074.3333333333333) internal successors, (3223), 3 states have internal predecessors, (3223), 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) [2024-10-24 15:31:04,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:04,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1073 of 1112 [2024-10-24 15:31:04,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:05,221 INFO L124 PetriNetUnfolderBase]: 73/1611 cut-off events. [2024-10-24 15:31:05,222 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:31:05,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 1611 events. 73/1611 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8227 event pairs, 12 based on Foata normal form. 0/1297 useless extension candidates. Maximal degree in co-relation 1607. Up to 40 conditions per place. [2024-10-24 15:31:05,289 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 15 selfloop transitions, 2 changer transitions 0/1061 dead transitions. [2024-10-24 15:31:05,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1061 transitions, 2166 flow [2024-10-24 15:31:05,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2024-10-24 15:31:05,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9703237410071942 [2024-10-24 15:31:05,298 INFO L175 Difference]: Start difference. First operand has 1031 places, 1062 transitions, 2134 flow. Second operand 3 states and 3237 transitions. [2024-10-24 15:31:05,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1032 places, 1061 transitions, 2166 flow [2024-10-24 15:31:05,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 1061 transitions, 2162 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:05,320 INFO L231 Difference]: Finished difference. Result has 1030 places, 1061 transitions, 2132 flow [2024-10-24 15:31:05,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2132, PETRI_PLACES=1030, PETRI_TRANSITIONS=1061} [2024-10-24 15:31:05,323 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -11 predicate places. [2024-10-24 15:31:05,324 INFO L471 AbstractCegarLoop]: Abstraction has has 1030 places, 1061 transitions, 2132 flow [2024-10-24 15:31:05,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1074.3333333333333) internal successors, (3223), 3 states have internal predecessors, (3223), 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) [2024-10-24 15:31:05,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:05,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:05,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:31:05,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:05,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:05,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1754966991, now seen corresponding path program 1 times [2024-10-24 15:31:05,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:05,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117565698] [2024-10-24 15:31:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:05,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:05,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:05,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117565698] [2024-10-24 15:31:05,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117565698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:05,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:05,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:05,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600106979] [2024-10-24 15:31:05,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:05,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:05,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1074 out of 1112 [2024-10-24 15:31:05,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 1061 transitions, 2132 flow. Second operand has 3 states, 3 states have (on average 1075.3333333333333) internal successors, (3226), 3 states have internal predecessors, (3226), 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) [2024-10-24 15:31:05,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:05,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1074 of 1112 [2024-10-24 15:31:05,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:06,599 INFO L124 PetriNetUnfolderBase]: 167/3835 cut-off events. [2024-10-24 15:31:06,599 INFO L125 PetriNetUnfolderBase]: For 1/3 co-relation queries the response was YES. [2024-10-24 15:31:06,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3889 conditions, 3835 events. 167/3835 cut-off events. For 1/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 26013 event pairs, 10 based on Foata normal form. 0/3045 useless extension candidates. Maximal degree in co-relation 3816. Up to 35 conditions per place. [2024-10-24 15:31:06,754 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 14 selfloop transitions, 2 changer transitions 0/1060 dead transitions. [2024-10-24 15:31:06,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1060 transitions, 2162 flow [2024-10-24 15:31:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:06,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3239 transitions. [2024-10-24 15:31:06,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9709232613908872 [2024-10-24 15:31:06,763 INFO L175 Difference]: Start difference. First operand has 1030 places, 1061 transitions, 2132 flow. Second operand 3 states and 3239 transitions. [2024-10-24 15:31:06,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 1060 transitions, 2162 flow [2024-10-24 15:31:06,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1029 places, 1060 transitions, 2158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:06,784 INFO L231 Difference]: Finished difference. Result has 1029 places, 1060 transitions, 2130 flow [2024-10-24 15:31:06,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=1027, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1058, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=1029, PETRI_TRANSITIONS=1060} [2024-10-24 15:31:06,787 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -12 predicate places. [2024-10-24 15:31:06,787 INFO L471 AbstractCegarLoop]: Abstraction has has 1029 places, 1060 transitions, 2130 flow [2024-10-24 15:31:06,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1075.3333333333333) internal successors, (3226), 3 states have internal predecessors, (3226), 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) [2024-10-24 15:31:06,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:06,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:06,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:31:06,790 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:06,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:06,791 INFO L85 PathProgramCache]: Analyzing trace with hash 949180969, now seen corresponding path program 1 times [2024-10-24 15:31:06,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:06,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334641205] [2024-10-24 15:31:06,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:06,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:06,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:06,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:06,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334641205] [2024-10-24 15:31:06,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334641205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:06,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:06,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:06,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226756326] [2024-10-24 15:31:06,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:06,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:06,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:06,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:06,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1112 [2024-10-24 15:31:06,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1060 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 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) [2024-10-24 15:31:06,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:06,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1112 [2024-10-24 15:31:06,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:09,417 INFO L124 PetriNetUnfolderBase]: 349/7719 cut-off events. [2024-10-24 15:31:09,417 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2024-10-24 15:31:09,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7822 conditions, 7719 events. 349/7719 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 68367 event pairs, 24 based on Foata normal form. 0/6095 useless extension candidates. Maximal degree in co-relation 7741. Up to 70 conditions per place. [2024-10-24 15:31:09,835 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 21 selfloop transitions, 2 changer transitions 0/1059 dead transitions. [2024-10-24 15:31:09,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1059 transitions, 2174 flow [2024-10-24 15:31:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3225 transitions. [2024-10-24 15:31:09,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.966726618705036 [2024-10-24 15:31:09,844 INFO L175 Difference]: Start difference. First operand has 1029 places, 1060 transitions, 2130 flow. Second operand 3 states and 3225 transitions. [2024-10-24 15:31:09,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1059 transitions, 2174 flow [2024-10-24 15:31:09,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1028 places, 1059 transitions, 2170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:09,865 INFO L231 Difference]: Finished difference. Result has 1028 places, 1059 transitions, 2128 flow [2024-10-24 15:31:09,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=1026, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2128, PETRI_PLACES=1028, PETRI_TRANSITIONS=1059} [2024-10-24 15:31:09,868 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -13 predicate places. [2024-10-24 15:31:09,869 INFO L471 AbstractCegarLoop]: Abstraction has has 1028 places, 1059 transitions, 2128 flow [2024-10-24 15:31:09,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 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) [2024-10-24 15:31:09,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:09,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:09,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:31:09,872 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:09,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:09,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1976604881, now seen corresponding path program 1 times [2024-10-24 15:31:09,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:09,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609946636] [2024-10-24 15:31:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:09,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:09,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609946636] [2024-10-24 15:31:09,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609946636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:09,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:09,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:09,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869080362] [2024-10-24 15:31:09,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:09,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:09,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:09,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:09,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:09,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:31:09,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1028 places, 1059 transitions, 2128 flow. Second operand has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:31:09,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:09,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:31:09,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:11,336 INFO L124 PetriNetUnfolderBase]: 149/3282 cut-off events. [2024-10-24 15:31:11,336 INFO L125 PetriNetUnfolderBase]: For 9/30 co-relation queries the response was YES. [2024-10-24 15:31:11,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3351 conditions, 3282 events. 149/3282 cut-off events. For 9/30 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 21607 event pairs, 16 based on Foata normal form. 0/2610 useless extension candidates. Maximal degree in co-relation 3262. Up to 52 conditions per place. [2024-10-24 15:31:11,533 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 19 selfloop transitions, 2 changer transitions 0/1058 dead transitions. [2024-10-24 15:31:11,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 1058 transitions, 2168 flow [2024-10-24 15:31:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:11,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3229 transitions. [2024-10-24 15:31:11,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.967925659472422 [2024-10-24 15:31:11,540 INFO L175 Difference]: Start difference. First operand has 1028 places, 1059 transitions, 2128 flow. Second operand 3 states and 3229 transitions. [2024-10-24 15:31:11,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1029 places, 1058 transitions, 2168 flow [2024-10-24 15:31:11,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1058 transitions, 2164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:11,558 INFO L231 Difference]: Finished difference. Result has 1027 places, 1058 transitions, 2126 flow [2024-10-24 15:31:11,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=1025, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2126, PETRI_PLACES=1027, PETRI_TRANSITIONS=1058} [2024-10-24 15:31:11,561 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -14 predicate places. [2024-10-24 15:31:11,561 INFO L471 AbstractCegarLoop]: Abstraction has has 1027 places, 1058 transitions, 2126 flow [2024-10-24 15:31:11,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:31:11,563 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:11,563 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:11,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:31:11,564 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:11,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:11,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1884930899, now seen corresponding path program 1 times [2024-10-24 15:31:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:11,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385087655] [2024-10-24 15:31:11,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:11,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:11,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:11,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385087655] [2024-10-24 15:31:11,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385087655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:11,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:11,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4636091] [2024-10-24 15:31:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:11,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:11,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:11,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1073 out of 1112 [2024-10-24 15:31:11,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1058 transitions, 2126 flow. Second operand has 3 states, 3 states have (on average 1074.3333333333333) internal successors, (3223), 3 states have internal predecessors, (3223), 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) [2024-10-24 15:31:11,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:11,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1073 of 1112 [2024-10-24 15:31:11,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:12,275 INFO L124 PetriNetUnfolderBase]: 73/1607 cut-off events. [2024-10-24 15:31:12,275 INFO L125 PetriNetUnfolderBase]: For 8/14 co-relation queries the response was YES. [2024-10-24 15:31:12,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 1607 events. 73/1607 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7834 event pairs, 12 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1565. Up to 40 conditions per place. [2024-10-24 15:31:12,356 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 15 selfloop transitions, 2 changer transitions 0/1057 dead transitions. [2024-10-24 15:31:12,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1057 transitions, 2158 flow [2024-10-24 15:31:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:12,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2024-10-24 15:31:12,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9703237410071942 [2024-10-24 15:31:12,362 INFO L175 Difference]: Start difference. First operand has 1027 places, 1058 transitions, 2126 flow. Second operand 3 states and 3237 transitions. [2024-10-24 15:31:12,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1057 transitions, 2158 flow [2024-10-24 15:31:12,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1026 places, 1057 transitions, 2154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:12,379 INFO L231 Difference]: Finished difference. Result has 1026 places, 1057 transitions, 2124 flow [2024-10-24 15:31:12,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=1024, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2124, PETRI_PLACES=1026, PETRI_TRANSITIONS=1057} [2024-10-24 15:31:12,381 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -15 predicate places. [2024-10-24 15:31:12,381 INFO L471 AbstractCegarLoop]: Abstraction has has 1026 places, 1057 transitions, 2124 flow [2024-10-24 15:31:12,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1074.3333333333333) internal successors, (3223), 3 states have internal predecessors, (3223), 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) [2024-10-24 15:31:12,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:12,384 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:12,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:31:12,384 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:12,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:12,384 INFO L85 PathProgramCache]: Analyzing trace with hash -175922964, now seen corresponding path program 1 times [2024-10-24 15:31:12,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:12,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651675000] [2024-10-24 15:31:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:12,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:12,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:12,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651675000] [2024-10-24 15:31:12,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651675000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:12,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:12,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:12,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176545454] [2024-10-24 15:31:12,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:12,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:12,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:12,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:12,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1074 out of 1112 [2024-10-24 15:31:12,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1057 transitions, 2124 flow. Second operand has 3 states, 3 states have (on average 1075.3333333333333) internal successors, (3226), 3 states have internal predecessors, (3226), 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) [2024-10-24 15:31:12,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:12,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1074 of 1112 [2024-10-24 15:31:12,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:13,446 INFO L124 PetriNetUnfolderBase]: 107/2446 cut-off events. [2024-10-24 15:31:13,446 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-10-24 15:31:13,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2495 conditions, 2446 events. 107/2446 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 13733 event pairs, 10 based on Foata normal form. 0/1958 useless extension candidates. Maximal degree in co-relation 2390. Up to 35 conditions per place. [2024-10-24 15:31:13,584 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 14 selfloop transitions, 2 changer transitions 0/1056 dead transitions. [2024-10-24 15:31:13,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1056 transitions, 2154 flow [2024-10-24 15:31:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3239 transitions. [2024-10-24 15:31:13,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9709232613908872 [2024-10-24 15:31:13,589 INFO L175 Difference]: Start difference. First operand has 1026 places, 1057 transitions, 2124 flow. Second operand 3 states and 3239 transitions. [2024-10-24 15:31:13,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1056 transitions, 2154 flow [2024-10-24 15:31:13,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1025 places, 1056 transitions, 2150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:13,604 INFO L231 Difference]: Finished difference. Result has 1025 places, 1056 transitions, 2122 flow [2024-10-24 15:31:13,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=1023, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=1025, PETRI_TRANSITIONS=1056} [2024-10-24 15:31:13,606 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -16 predicate places. [2024-10-24 15:31:13,606 INFO L471 AbstractCegarLoop]: Abstraction has has 1025 places, 1056 transitions, 2122 flow [2024-10-24 15:31:13,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1075.3333333333333) internal successors, (3226), 3 states have internal predecessors, (3226), 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) [2024-10-24 15:31:13,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:13,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:13,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:31:13,609 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:13,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2144197116, now seen corresponding path program 1 times [2024-10-24 15:31:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:13,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415451617] [2024-10-24 15:31:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:13,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:13,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:13,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:13,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415451617] [2024-10-24 15:31:13,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415451617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:13,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:13,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:13,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893874858] [2024-10-24 15:31:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:13,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:13,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:13,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:13,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:13,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1112 [2024-10-24 15:31:13,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1056 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 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) [2024-10-24 15:31:13,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:13,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1112 [2024-10-24 15:31:13,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:15,252 INFO L124 PetriNetUnfolderBase]: 205/4391 cut-off events. [2024-10-24 15:31:15,252 INFO L125 PetriNetUnfolderBase]: For 13/97 co-relation queries the response was YES. [2024-10-24 15:31:15,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4482 conditions, 4391 events. 205/4391 cut-off events. For 13/97 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 32450 event pairs, 24 based on Foata normal form. 0/3480 useless extension candidates. Maximal degree in co-relation 4369. Up to 70 conditions per place. [2024-10-24 15:31:15,444 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 21 selfloop transitions, 2 changer transitions 0/1055 dead transitions. [2024-10-24 15:31:15,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1055 transitions, 2166 flow [2024-10-24 15:31:15,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3225 transitions. [2024-10-24 15:31:15,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.966726618705036 [2024-10-24 15:31:15,449 INFO L175 Difference]: Start difference. First operand has 1025 places, 1056 transitions, 2122 flow. Second operand 3 states and 3225 transitions. [2024-10-24 15:31:15,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1055 transitions, 2166 flow [2024-10-24 15:31:15,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1024 places, 1055 transitions, 2162 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:15,462 INFO L231 Difference]: Finished difference. Result has 1024 places, 1055 transitions, 2120 flow [2024-10-24 15:31:15,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2120, PETRI_PLACES=1024, PETRI_TRANSITIONS=1055} [2024-10-24 15:31:15,464 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -17 predicate places. [2024-10-24 15:31:15,464 INFO L471 AbstractCegarLoop]: Abstraction has has 1024 places, 1055 transitions, 2120 flow [2024-10-24 15:31:15,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 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) [2024-10-24 15:31:15,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:15,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:15,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:31:15,467 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:15,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash -630342891, now seen corresponding path program 1 times [2024-10-24 15:31:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:15,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592147445] [2024-10-24 15:31:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:15,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:15,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:15,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:15,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592147445] [2024-10-24 15:31:15,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592147445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:15,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:15,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:15,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793877622] [2024-10-24 15:31:15,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:15,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:15,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:15,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:15,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:31:15,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1055 transitions, 2120 flow. Second operand has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:31:15,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:15,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:31:15,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:16,018 INFO L124 PetriNetUnfolderBase]: 77/1572 cut-off events. [2024-10-24 15:31:16,019 INFO L125 PetriNetUnfolderBase]: For 18/20 co-relation queries the response was YES. [2024-10-24 15:31:16,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1635 conditions, 1572 events. 77/1572 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7453 event pairs, 16 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 1514. Up to 54 conditions per place. [2024-10-24 15:31:16,095 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 19 selfloop transitions, 2 changer transitions 0/1054 dead transitions. [2024-10-24 15:31:16,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1054 transitions, 2160 flow [2024-10-24 15:31:16,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:16,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3229 transitions. [2024-10-24 15:31:16,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.967925659472422 [2024-10-24 15:31:16,101 INFO L175 Difference]: Start difference. First operand has 1024 places, 1055 transitions, 2120 flow. Second operand 3 states and 3229 transitions. [2024-10-24 15:31:16,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1025 places, 1054 transitions, 2160 flow [2024-10-24 15:31:16,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1054 transitions, 2156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:16,119 INFO L231 Difference]: Finished difference. Result has 1023 places, 1054 transitions, 2118 flow [2024-10-24 15:31:16,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2118, PETRI_PLACES=1023, PETRI_TRANSITIONS=1054} [2024-10-24 15:31:16,123 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -18 predicate places. [2024-10-24 15:31:16,123 INFO L471 AbstractCegarLoop]: Abstraction has has 1023 places, 1054 transitions, 2118 flow [2024-10-24 15:31:16,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1070.3333333333333) internal successors, (3211), 3 states have internal predecessors, (3211), 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) [2024-10-24 15:31:16,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:16,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:16,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 15:31:16,125 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:16,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash -819246570, now seen corresponding path program 1 times [2024-10-24 15:31:16,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:16,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087459231] [2024-10-24 15:31:16,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:16,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:16,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:16,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087459231] [2024-10-24 15:31:16,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087459231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:16,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:16,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:16,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681292038] [2024-10-24 15:31:16,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:16,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:16,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:16,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:16,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:16,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1073 out of 1112 [2024-10-24 15:31:16,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1054 transitions, 2118 flow. Second operand has 3 states, 3 states have (on average 1074.3333333333333) internal successors, (3223), 3 states have internal predecessors, (3223), 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) [2024-10-24 15:31:16,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:16,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1073 of 1112 [2024-10-24 15:31:16,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:16,674 INFO L124 PetriNetUnfolderBase]: 73/1603 cut-off events. [2024-10-24 15:31:16,675 INFO L125 PetriNetUnfolderBase]: For 14/16 co-relation queries the response was YES. [2024-10-24 15:31:16,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1652 conditions, 1603 events. 73/1603 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7331 event pairs, 12 based on Foata normal form. 0/1296 useless extension candidates. Maximal degree in co-relation 1523. Up to 40 conditions per place. [2024-10-24 15:31:16,766 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 15 selfloop transitions, 2 changer transitions 0/1053 dead transitions. [2024-10-24 15:31:16,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1053 transitions, 2150 flow [2024-10-24 15:31:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2024-10-24 15:31:16,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9703237410071942 [2024-10-24 15:31:16,771 INFO L175 Difference]: Start difference. First operand has 1023 places, 1054 transitions, 2118 flow. Second operand 3 states and 3237 transitions. [2024-10-24 15:31:16,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1053 transitions, 2150 flow [2024-10-24 15:31:16,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1053 transitions, 2146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:16,789 INFO L231 Difference]: Finished difference. Result has 1022 places, 1053 transitions, 2116 flow [2024-10-24 15:31:16,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=1020, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=1022, PETRI_TRANSITIONS=1053} [2024-10-24 15:31:16,792 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -19 predicate places. [2024-10-24 15:31:16,792 INFO L471 AbstractCegarLoop]: Abstraction has has 1022 places, 1053 transitions, 2116 flow [2024-10-24 15:31:16,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1074.3333333333333) internal successors, (3223), 3 states have internal predecessors, (3223), 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) [2024-10-24 15:31:16,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:16,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:16,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:31:16,794 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:16,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:16,794 INFO L85 PathProgramCache]: Analyzing trace with hash 828211859, now seen corresponding path program 1 times [2024-10-24 15:31:16,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:16,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052230215] [2024-10-24 15:31:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:16,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:16,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:16,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052230215] [2024-10-24 15:31:16,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052230215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:16,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:16,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:16,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528576391] [2024-10-24 15:31:16,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:16,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:16,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:16,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:16,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:16,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1074 out of 1112 [2024-10-24 15:31:16,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1053 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1075.3333333333333) internal successors, (3226), 3 states have internal predecessors, (3226), 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) [2024-10-24 15:31:16,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:16,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1074 of 1112 [2024-10-24 15:31:16,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:17,185 INFO L124 PetriNetUnfolderBase]: 47/1072 cut-off events. [2024-10-24 15:31:17,185 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-10-24 15:31:17,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 1072 events. 47/1072 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4432 event pairs, 10 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 979. Up to 35 conditions per place. [2024-10-24 15:31:17,238 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 14 selfloop transitions, 2 changer transitions 0/1052 dead transitions. [2024-10-24 15:31:17,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1052 transitions, 2146 flow [2024-10-24 15:31:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:17,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3239 transitions. [2024-10-24 15:31:17,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9709232613908872 [2024-10-24 15:31:17,243 INFO L175 Difference]: Start difference. First operand has 1022 places, 1053 transitions, 2116 flow. Second operand 3 states and 3239 transitions. [2024-10-24 15:31:17,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1052 transitions, 2146 flow [2024-10-24 15:31:17,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1052 transitions, 2142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:17,261 INFO L231 Difference]: Finished difference. Result has 1021 places, 1052 transitions, 2114 flow [2024-10-24 15:31:17,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2114, PETRI_PLACES=1021, PETRI_TRANSITIONS=1052} [2024-10-24 15:31:17,263 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -20 predicate places. [2024-10-24 15:31:17,263 INFO L471 AbstractCegarLoop]: Abstraction has has 1021 places, 1052 transitions, 2114 flow [2024-10-24 15:31:17,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1075.3333333333333) internal successors, (3226), 3 states have internal predecessors, (3226), 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) [2024-10-24 15:31:17,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:17,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:17,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:31:17,265 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:17,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash 795872891, now seen corresponding path program 1 times [2024-10-24 15:31:17,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:17,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068641446] [2024-10-24 15:31:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:17,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:17,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:17,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:17,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068641446] [2024-10-24 15:31:17,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068641446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:17,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:17,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:17,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319546648] [2024-10-24 15:31:17,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:17,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:17,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:17,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:17,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:17,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1112 [2024-10-24 15:31:17,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1052 transitions, 2114 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 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) [2024-10-24 15:31:17,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:17,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1112 [2024-10-24 15:31:17,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:17,744 INFO L124 PetriNetUnfolderBase]: 85/1601 cut-off events. [2024-10-24 15:31:17,744 INFO L125 PetriNetUnfolderBase]: For 26/28 co-relation queries the response was YES. [2024-10-24 15:31:17,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 1601 events. 85/1601 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8323 event pairs, 24 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1535. Up to 70 conditions per place. [2024-10-24 15:31:17,804 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 21 selfloop transitions, 2 changer transitions 0/1051 dead transitions. [2024-10-24 15:31:17,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1051 transitions, 2158 flow [2024-10-24 15:31:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:17,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3225 transitions. [2024-10-24 15:31:17,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.966726618705036 [2024-10-24 15:31:17,809 INFO L175 Difference]: Start difference. First operand has 1021 places, 1052 transitions, 2114 flow. Second operand 3 states and 3225 transitions. [2024-10-24 15:31:17,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1051 transitions, 2158 flow [2024-10-24 15:31:17,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1020 places, 1051 transitions, 2154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:17,826 INFO L231 Difference]: Finished difference. Result has 1020 places, 1051 transitions, 2112 flow [2024-10-24 15:31:17,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2108, PETRI_DIFFERENCE_MINUEND_PLACES=1018, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1049, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2112, PETRI_PLACES=1020, PETRI_TRANSITIONS=1051} [2024-10-24 15:31:17,829 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -21 predicate places. [2024-10-24 15:31:17,829 INFO L471 AbstractCegarLoop]: Abstraction has has 1020 places, 1051 transitions, 2112 flow [2024-10-24 15:31:17,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 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) [2024-10-24 15:31:17,830 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:17,830 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:17,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 15:31:17,831 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:17,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1948909320, now seen corresponding path program 1 times [2024-10-24 15:31:17,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:17,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110248834] [2024-10-24 15:31:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:17,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:17,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:17,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110248834] [2024-10-24 15:31:17,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110248834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:17,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:17,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053343343] [2024-10-24 15:31:17,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:17,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:17,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:17,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:17,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1076 out of 1112 [2024-10-24 15:31:17,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1020 places, 1051 transitions, 2112 flow. Second operand has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 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) [2024-10-24 15:31:17,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:17,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1076 of 1112 [2024-10-24 15:31:17,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:18,540 INFO L124 PetriNetUnfolderBase]: 121/2611 cut-off events. [2024-10-24 15:31:18,540 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2024-10-24 15:31:18,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2667 conditions, 2611 events. 121/2611 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 14424 event pairs, 15 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 2514. Up to 43 conditions per place. [2024-10-24 15:31:18,635 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 12 selfloop transitions, 2 changer transitions 0/1050 dead transitions. [2024-10-24 15:31:18,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1021 places, 1050 transitions, 2138 flow [2024-10-24 15:31:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3243 transitions. [2024-10-24 15:31:18,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9721223021582733 [2024-10-24 15:31:18,640 INFO L175 Difference]: Start difference. First operand has 1020 places, 1051 transitions, 2112 flow. Second operand 3 states and 3243 transitions. [2024-10-24 15:31:18,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1021 places, 1050 transitions, 2138 flow [2024-10-24 15:31:18,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1019 places, 1050 transitions, 2134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:18,652 INFO L231 Difference]: Finished difference. Result has 1019 places, 1050 transitions, 2110 flow [2024-10-24 15:31:18,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=1017, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2110, PETRI_PLACES=1019, PETRI_TRANSITIONS=1050} [2024-10-24 15:31:18,654 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -22 predicate places. [2024-10-24 15:31:18,655 INFO L471 AbstractCegarLoop]: Abstraction has has 1019 places, 1050 transitions, 2110 flow [2024-10-24 15:31:18,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 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) [2024-10-24 15:31:18,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:18,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:18,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 15:31:18,656 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:18,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:18,657 INFO L85 PathProgramCache]: Analyzing trace with hash -819245984, now seen corresponding path program 1 times [2024-10-24 15:31:18,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:18,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518567047] [2024-10-24 15:31:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:18,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:19,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:19,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518567047] [2024-10-24 15:31:19,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518567047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:19,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:19,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:31:19,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061829102] [2024-10-24 15:31:19,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:19,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:31:19,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:19,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:31:19,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:31:19,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1060 out of 1112 [2024-10-24 15:31:19,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1050 transitions, 2110 flow. Second operand has 6 states, 6 states have (on average 1061.5) internal successors, (6369), 6 states have internal predecessors, (6369), 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) [2024-10-24 15:31:19,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:19,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1060 of 1112 [2024-10-24 15:31:19,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:22,548 INFO L124 PetriNetUnfolderBase]: 893/12790 cut-off events. [2024-10-24 15:31:22,548 INFO L125 PetriNetUnfolderBase]: For 59/68 co-relation queries the response was YES. [2024-10-24 15:31:22,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13410 conditions, 12790 events. 893/12790 cut-off events. For 59/68 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 132389 event pairs, 264 based on Foata normal form. 0/10061 useless extension candidates. Maximal degree in co-relation 13198. Up to 580 conditions per place. [2024-10-24 15:31:22,910 INFO L140 encePairwiseOnDemand]: 1106/1112 looper letters, 26 selfloop transitions, 5 changer transitions 0/1049 dead transitions. [2024-10-24 15:31:22,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1049 transitions, 2170 flow [2024-10-24 15:31:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:31:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:31:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6392 transitions. [2024-10-24 15:31:22,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9580335731414868 [2024-10-24 15:31:22,920 INFO L175 Difference]: Start difference. First operand has 1019 places, 1050 transitions, 2110 flow. Second operand 6 states and 6392 transitions. [2024-10-24 15:31:22,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1049 transitions, 2170 flow [2024-10-24 15:31:22,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1049 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:22,930 INFO L231 Difference]: Finished difference. Result has 1021 places, 1049 transitions, 2114 flow [2024-10-24 15:31:22,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2104, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1044, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2114, PETRI_PLACES=1021, PETRI_TRANSITIONS=1049} [2024-10-24 15:31:22,931 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -20 predicate places. [2024-10-24 15:31:22,931 INFO L471 AbstractCegarLoop]: Abstraction has has 1021 places, 1049 transitions, 2114 flow [2024-10-24 15:31:22,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1061.5) internal successors, (6369), 6 states have internal predecessors, (6369), 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) [2024-10-24 15:31:22,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:22,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:22,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 15:31:22,933 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:22,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1681895888, now seen corresponding path program 1 times [2024-10-24 15:31:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:22,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000581955] [2024-10-24 15:31:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:22,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:22,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000581955] [2024-10-24 15:31:22,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000581955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:22,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:22,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:22,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126414755] [2024-10-24 15:31:22,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:22,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:22,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:22,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:22,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:23,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1075 out of 1112 [2024-10-24 15:31:23,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1049 transitions, 2114 flow. Second operand has 3 states, 3 states have (on average 1076.6666666666667) internal successors, (3230), 3 states have internal predecessors, (3230), 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) [2024-10-24 15:31:23,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:23,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1075 of 1112 [2024-10-24 15:31:23,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:24,075 INFO L124 PetriNetUnfolderBase]: 163/3539 cut-off events. [2024-10-24 15:31:24,075 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2024-10-24 15:31:24,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3620 conditions, 3539 events. 163/3539 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 22944 event pairs, 9 based on Foata normal form. 0/2820 useless extension candidates. Maximal degree in co-relation 3602. Up to 43 conditions per place. [2024-10-24 15:31:24,259 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 16 selfloop transitions, 2 changer transitions 0/1050 dead transitions. [2024-10-24 15:31:24,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1050 transitions, 2154 flow [2024-10-24 15:31:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3244 transitions. [2024-10-24 15:31:24,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9724220623501199 [2024-10-24 15:31:24,264 INFO L175 Difference]: Start difference. First operand has 1021 places, 1049 transitions, 2114 flow. Second operand 3 states and 3244 transitions. [2024-10-24 15:31:24,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1050 transitions, 2154 flow [2024-10-24 15:31:24,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1017 places, 1050 transitions, 2144 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:31:24,274 INFO L231 Difference]: Finished difference. Result has 1017 places, 1048 transitions, 2106 flow [2024-10-24 15:31:24,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=1015, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1046, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2106, PETRI_PLACES=1017, PETRI_TRANSITIONS=1048} [2024-10-24 15:31:24,276 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -24 predicate places. [2024-10-24 15:31:24,276 INFO L471 AbstractCegarLoop]: Abstraction has has 1017 places, 1048 transitions, 2106 flow [2024-10-24 15:31:24,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1076.6666666666667) internal successors, (3230), 3 states have internal predecessors, (3230), 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) [2024-10-24 15:31:24,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:24,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:24,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 15:31:24,277 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:24,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:24,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1709151732, now seen corresponding path program 1 times [2024-10-24 15:31:24,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:24,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343587502] [2024-10-24 15:31:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:24,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:24,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:24,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343587502] [2024-10-24 15:31:24,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343587502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:24,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:24,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:24,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017784987] [2024-10-24 15:31:24,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:24,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:24,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:24,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:24,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:24,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:31:24,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 1048 transitions, 2106 flow. Second operand has 3 states, 3 states have (on average 1070.6666666666667) internal successors, (3212), 3 states have internal predecessors, (3212), 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) [2024-10-24 15:31:24,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:24,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:31:24,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:24,938 INFO L124 PetriNetUnfolderBase]: 115/2154 cut-off events. [2024-10-24 15:31:24,938 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:31:25,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2274 conditions, 2154 events. 115/2154 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 13272 event pairs, 26 based on Foata normal form. 0/1739 useless extension candidates. Maximal degree in co-relation 2062. Up to 73 conditions per place. [2024-10-24 15:31:25,031 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 22 selfloop transitions, 2 changer transitions 0/1049 dead transitions. [2024-10-24 15:31:25,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1049 transitions, 2158 flow [2024-10-24 15:31:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:25,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:25,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3232 transitions. [2024-10-24 15:31:25,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9688249400479616 [2024-10-24 15:31:25,035 INFO L175 Difference]: Start difference. First operand has 1017 places, 1048 transitions, 2106 flow. Second operand 3 states and 3232 transitions. [2024-10-24 15:31:25,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1018 places, 1049 transitions, 2158 flow [2024-10-24 15:31:25,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1016 places, 1049 transitions, 2154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:25,050 INFO L231 Difference]: Finished difference. Result has 1016 places, 1047 transitions, 2104 flow [2024-10-24 15:31:25,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2100, PETRI_DIFFERENCE_MINUEND_PLACES=1014, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1047, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1045, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2104, PETRI_PLACES=1016, PETRI_TRANSITIONS=1047} [2024-10-24 15:31:25,052 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -25 predicate places. [2024-10-24 15:31:25,053 INFO L471 AbstractCegarLoop]: Abstraction has has 1016 places, 1047 transitions, 2104 flow [2024-10-24 15:31:25,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1070.6666666666667) internal successors, (3212), 3 states have internal predecessors, (3212), 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) [2024-10-24 15:31:25,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:25,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:25,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 15:31:25,054 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:25,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1285035561, now seen corresponding path program 1 times [2024-10-24 15:31:25,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:25,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246077719] [2024-10-24 15:31:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:25,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:25,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246077719] [2024-10-24 15:31:25,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246077719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:25,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:25,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:25,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378022417] [2024-10-24 15:31:25,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:25,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:25,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:25,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:25,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:25,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1075 out of 1112 [2024-10-24 15:31:25,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1016 places, 1047 transitions, 2104 flow. Second operand has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 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) [2024-10-24 15:31:25,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:25,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1075 of 1112 [2024-10-24 15:31:25,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:25,583 INFO L124 PetriNetUnfolderBase]: 79/1602 cut-off events. [2024-10-24 15:31:25,583 INFO L125 PetriNetUnfolderBase]: For 11/20 co-relation queries the response was YES. [2024-10-24 15:31:25,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 1602 events. 79/1602 cut-off events. For 11/20 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7921 event pairs, 14 based on Foata normal form. 0/1300 useless extension candidates. Maximal degree in co-relation 1454. Up to 43 conditions per place. [2024-10-24 15:31:25,657 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 16 selfloop transitions, 2 changer transitions 0/1048 dead transitions. [2024-10-24 15:31:25,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1017 places, 1048 transitions, 2144 flow [2024-10-24 15:31:25,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:25,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3244 transitions. [2024-10-24 15:31:25,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9724220623501199 [2024-10-24 15:31:25,660 INFO L175 Difference]: Start difference. First operand has 1016 places, 1047 transitions, 2104 flow. Second operand 3 states and 3244 transitions. [2024-10-24 15:31:25,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1017 places, 1048 transitions, 2144 flow [2024-10-24 15:31:25,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1015 places, 1048 transitions, 2140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:25,673 INFO L231 Difference]: Finished difference. Result has 1015 places, 1046 transitions, 2102 flow [2024-10-24 15:31:25,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2098, PETRI_DIFFERENCE_MINUEND_PLACES=1013, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1046, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1044, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2102, PETRI_PLACES=1015, PETRI_TRANSITIONS=1046} [2024-10-24 15:31:25,675 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -26 predicate places. [2024-10-24 15:31:25,675 INFO L471 AbstractCegarLoop]: Abstraction has has 1015 places, 1046 transitions, 2102 flow [2024-10-24 15:31:25,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 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) [2024-10-24 15:31:25,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:25,677 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:25,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 15:31:25,677 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:25,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:25,678 INFO L85 PathProgramCache]: Analyzing trace with hash 504439445, now seen corresponding path program 1 times [2024-10-24 15:31:25,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:25,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239496596] [2024-10-24 15:31:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:25,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:25,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:25,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239496596] [2024-10-24 15:31:25,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239496596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:25,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:25,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:25,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547783440] [2024-10-24 15:31:25,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:25,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:25,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:25,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:25,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:25,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1112 [2024-10-24 15:31:25,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1015 places, 1046 transitions, 2102 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 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) [2024-10-24 15:31:25,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:25,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1112 [2024-10-24 15:31:25,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:28,632 INFO L124 PetriNetUnfolderBase]: 847/10614 cut-off events. [2024-10-24 15:31:28,633 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-24 15:31:28,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11414 conditions, 10614 events. 847/10614 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 103469 event pairs, 190 based on Foata normal form. 0/8479 useless extension candidates. Maximal degree in co-relation 10900. Up to 658 conditions per place. [2024-10-24 15:31:29,001 INFO L140 encePairwiseOnDemand]: 1100/1112 looper letters, 29 selfloop transitions, 2 changer transitions 0/1040 dead transitions. [2024-10-24 15:31:29,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1007 places, 1040 transitions, 2154 flow [2024-10-24 15:31:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3206 transitions. [2024-10-24 15:31:29,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9610311750599521 [2024-10-24 15:31:29,005 INFO L175 Difference]: Start difference. First operand has 1015 places, 1046 transitions, 2102 flow. Second operand 3 states and 3206 transitions. [2024-10-24 15:31:29,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1007 places, 1040 transitions, 2154 flow [2024-10-24 15:31:29,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1005 places, 1040 transitions, 2150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:29,020 INFO L231 Difference]: Finished difference. Result has 1006 places, 1038 transitions, 2092 flow [2024-10-24 15:31:29,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2078, PETRI_DIFFERENCE_MINUEND_PLACES=1003, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1034, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2092, PETRI_PLACES=1006, PETRI_TRANSITIONS=1038} [2024-10-24 15:31:29,021 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -35 predicate places. [2024-10-24 15:31:29,022 INFO L471 AbstractCegarLoop]: Abstraction has has 1006 places, 1038 transitions, 2092 flow [2024-10-24 15:31:29,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 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) [2024-10-24 15:31:29,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:29,023 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:29,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 15:31:29,023 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:29,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:29,023 INFO L85 PathProgramCache]: Analyzing trace with hash -564917577, now seen corresponding path program 1 times [2024-10-24 15:31:29,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:29,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470711877] [2024-10-24 15:31:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:29,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:29,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470711877] [2024-10-24 15:31:29,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470711877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:29,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:29,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:29,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035375712] [2024-10-24 15:31:29,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:29,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:29,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:29,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:29,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:29,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1112 [2024-10-24 15:31:29,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1006 places, 1038 transitions, 2092 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 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) [2024-10-24 15:31:29,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:29,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1112 [2024-10-24 15:31:29,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:31,287 INFO L124 PetriNetUnfolderBase]: 451/6342 cut-off events. [2024-10-24 15:31:31,287 INFO L125 PetriNetUnfolderBase]: For 31/77 co-relation queries the response was YES. [2024-10-24 15:31:31,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6718 conditions, 6342 events. 451/6342 cut-off events. For 31/77 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 51655 event pairs, 110 based on Foata normal form. 1/5113 useless extension candidates. Maximal degree in co-relation 6242. Up to 340 conditions per place. [2024-10-24 15:31:31,688 INFO L140 encePairwiseOnDemand]: 1100/1112 looper letters, 29 selfloop transitions, 2 changer transitions 0/1032 dead transitions. [2024-10-24 15:31:31,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 998 places, 1032 transitions, 2144 flow [2024-10-24 15:31:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:31,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3206 transitions. [2024-10-24 15:31:31,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9610311750599521 [2024-10-24 15:31:31,691 INFO L175 Difference]: Start difference. First operand has 1006 places, 1038 transitions, 2092 flow. Second operand 3 states and 3206 transitions. [2024-10-24 15:31:31,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 998 places, 1032 transitions, 2144 flow [2024-10-24 15:31:31,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 998 places, 1032 transitions, 2144 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:31:31,708 INFO L231 Difference]: Finished difference. Result has 999 places, 1030 transitions, 2086 flow [2024-10-24 15:31:31,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2072, PETRI_DIFFERENCE_MINUEND_PLACES=996, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1028, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1026, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2086, PETRI_PLACES=999, PETRI_TRANSITIONS=1030} [2024-10-24 15:31:31,710 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -42 predicate places. [2024-10-24 15:31:31,710 INFO L471 AbstractCegarLoop]: Abstraction has has 999 places, 1030 transitions, 2086 flow [2024-10-24 15:31:31,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 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) [2024-10-24 15:31:31,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:31,711 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:31,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 15:31:31,712 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:31,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:31,712 INFO L85 PathProgramCache]: Analyzing trace with hash -87173598, now seen corresponding path program 1 times [2024-10-24 15:31:31,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:31,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586243241] [2024-10-24 15:31:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:31,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:31,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:31,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586243241] [2024-10-24 15:31:31,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586243241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:31,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:31,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:31,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749895667] [2024-10-24 15:31:31,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:31,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:31,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:31,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:31:31,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 999 places, 1030 transitions, 2086 flow. Second operand has 3 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 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) [2024-10-24 15:31:31,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:31,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:31:31,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:32,557 INFO L124 PetriNetUnfolderBase]: 166/2871 cut-off events. [2024-10-24 15:31:32,557 INFO L125 PetriNetUnfolderBase]: For 17/44 co-relation queries the response was YES. [2024-10-24 15:31:32,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3040 conditions, 2871 events. 166/2871 cut-off events. For 17/44 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 20454 event pairs, 37 based on Foata normal form. 0/2341 useless extension candidates. Maximal degree in co-relation 2250. Up to 106 conditions per place. [2024-10-24 15:31:32,715 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 22 selfloop transitions, 2 changer transitions 0/1031 dead transitions. [2024-10-24 15:31:32,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1000 places, 1031 transitions, 2138 flow [2024-10-24 15:31:32,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:32,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:32,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3232 transitions. [2024-10-24 15:31:32,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9688249400479616 [2024-10-24 15:31:32,718 INFO L175 Difference]: Start difference. First operand has 999 places, 1030 transitions, 2086 flow. Second operand 3 states and 3232 transitions. [2024-10-24 15:31:32,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1000 places, 1031 transitions, 2138 flow [2024-10-24 15:31:32,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1000 places, 1031 transitions, 2138 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:31:32,728 INFO L231 Difference]: Finished difference. Result has 1000 places, 1029 transitions, 2088 flow [2024-10-24 15:31:32,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2084, PETRI_DIFFERENCE_MINUEND_PLACES=998, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1029, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1027, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2088, PETRI_PLACES=1000, PETRI_TRANSITIONS=1029} [2024-10-24 15:31:32,729 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -41 predicate places. [2024-10-24 15:31:32,729 INFO L471 AbstractCegarLoop]: Abstraction has has 1000 places, 1029 transitions, 2088 flow [2024-10-24 15:31:32,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 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) [2024-10-24 15:31:32,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:32,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:32,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 15:31:32,730 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:32,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:32,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2145898268, now seen corresponding path program 1 times [2024-10-24 15:31:32,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:32,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952372849] [2024-10-24 15:31:32,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:32,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:32,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952372849] [2024-10-24 15:31:32,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952372849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:32,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:32,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294216106] [2024-10-24 15:31:32,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:32,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:32,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:32,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:32,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1075 out of 1112 [2024-10-24 15:31:32,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1000 places, 1029 transitions, 2088 flow. Second operand has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 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) [2024-10-24 15:31:32,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:32,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1075 of 1112 [2024-10-24 15:31:32,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:33,438 INFO L124 PetriNetUnfolderBase]: 105/2080 cut-off events. [2024-10-24 15:31:33,438 INFO L125 PetriNetUnfolderBase]: For 21/35 co-relation queries the response was YES. [2024-10-24 15:31:33,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 2080 events. 105/2080 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11845 event pairs, 14 based on Foata normal form. 1/1711 useless extension candidates. Maximal degree in co-relation 1934. Up to 48 conditions per place. [2024-10-24 15:31:33,520 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 16 selfloop transitions, 2 changer transitions 0/1030 dead transitions. [2024-10-24 15:31:33,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1001 places, 1030 transitions, 2128 flow [2024-10-24 15:31:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:33,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3244 transitions. [2024-10-24 15:31:33,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9724220623501199 [2024-10-24 15:31:33,523 INFO L175 Difference]: Start difference. First operand has 1000 places, 1029 transitions, 2088 flow. Second operand 3 states and 3244 transitions. [2024-10-24 15:31:33,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1001 places, 1030 transitions, 2128 flow [2024-10-24 15:31:33,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 999 places, 1030 transitions, 2124 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:33,535 INFO L231 Difference]: Finished difference. Result has 999 places, 1028 transitions, 2086 flow [2024-10-24 15:31:33,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=997, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1028, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1026, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2086, PETRI_PLACES=999, PETRI_TRANSITIONS=1028} [2024-10-24 15:31:33,536 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -42 predicate places. [2024-10-24 15:31:33,536 INFO L471 AbstractCegarLoop]: Abstraction has has 999 places, 1028 transitions, 2086 flow [2024-10-24 15:31:33,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 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) [2024-10-24 15:31:33,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:33,537 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:33,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 15:31:33,537 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:33,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1775177189, now seen corresponding path program 1 times [2024-10-24 15:31:33,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:33,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318180661] [2024-10-24 15:31:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:33,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:33,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318180661] [2024-10-24 15:31:33,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318180661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:33,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:33,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:33,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234593317] [2024-10-24 15:31:33,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:33,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:33,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:33,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:33,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:33,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1066 out of 1112 [2024-10-24 15:31:33,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 999 places, 1028 transitions, 2086 flow. Second operand has 3 states, 3 states have (on average 1067.3333333333333) internal successors, (3202), 3 states have internal predecessors, (3202), 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) [2024-10-24 15:31:33,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:33,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1066 of 1112 [2024-10-24 15:31:33,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:34,565 INFO L124 PetriNetUnfolderBase]: 191/3773 cut-off events. [2024-10-24 15:31:34,565 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-10-24 15:31:34,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3916 conditions, 3773 events. 191/3773 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 25710 event pairs, 8 based on Foata normal form. 0/3081 useless extension candidates. Maximal degree in co-relation 3438. Up to 42 conditions per place. [2024-10-24 15:31:34,726 INFO L140 encePairwiseOnDemand]: 1098/1112 looper letters, 18 selfloop transitions, 9 changer transitions 0/1029 dead transitions. [2024-10-24 15:31:34,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 996 places, 1029 transitions, 2144 flow [2024-10-24 15:31:34,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3230 transitions. [2024-10-24 15:31:34,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9682254196642686 [2024-10-24 15:31:34,728 INFO L175 Difference]: Start difference. First operand has 999 places, 1028 transitions, 2086 flow. Second operand 3 states and 3230 transitions. [2024-10-24 15:31:34,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 996 places, 1029 transitions, 2144 flow [2024-10-24 15:31:34,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 994 places, 1029 transitions, 2140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:34,742 INFO L231 Difference]: Finished difference. Result has 995 places, 1027 transitions, 2115 flow [2024-10-24 15:31:34,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2072, PETRI_DIFFERENCE_MINUEND_PLACES=992, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1023, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1014, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2115, PETRI_PLACES=995, PETRI_TRANSITIONS=1027} [2024-10-24 15:31:34,744 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -46 predicate places. [2024-10-24 15:31:34,744 INFO L471 AbstractCegarLoop]: Abstraction has has 995 places, 1027 transitions, 2115 flow [2024-10-24 15:31:34,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1067.3333333333333) internal successors, (3202), 3 states have internal predecessors, (3202), 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) [2024-10-24 15:31:34,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:34,745 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:34,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 15:31:34,746 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:34,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash -398434658, now seen corresponding path program 1 times [2024-10-24 15:31:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:34,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074903742] [2024-10-24 15:31:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:34,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:34,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:34,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074903742] [2024-10-24 15:31:34,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074903742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:34,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:34,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:34,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947323475] [2024-10-24 15:31:34,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:34,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:34,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1072 out of 1112 [2024-10-24 15:31:34,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 995 places, 1027 transitions, 2115 flow. Second operand has 3 states, 3 states have (on average 1073.6666666666667) internal successors, (3221), 3 states have internal predecessors, (3221), 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) [2024-10-24 15:31:34,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:34,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1072 of 1112 [2024-10-24 15:31:34,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:35,703 INFO L124 PetriNetUnfolderBase]: 183/3668 cut-off events. [2024-10-24 15:31:35,703 INFO L125 PetriNetUnfolderBase]: For 61/77 co-relation queries the response was YES. [2024-10-24 15:31:35,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3848 conditions, 3668 events. 183/3668 cut-off events. For 61/77 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 28355 event pairs, 20 based on Foata normal form. 1/3011 useless extension candidates. Maximal degree in co-relation 3369. Up to 68 conditions per place. [2024-10-24 15:31:35,862 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 22 selfloop transitions, 3 changer transitions 0/1028 dead transitions. [2024-10-24 15:31:35,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 996 places, 1028 transitions, 2169 flow [2024-10-24 15:31:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:35,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3238 transitions. [2024-10-24 15:31:35,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9706235011990407 [2024-10-24 15:31:35,864 INFO L175 Difference]: Start difference. First operand has 995 places, 1027 transitions, 2115 flow. Second operand 3 states and 3238 transitions. [2024-10-24 15:31:35,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 996 places, 1028 transitions, 2169 flow [2024-10-24 15:31:35,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 995 places, 1028 transitions, 2160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:31:35,875 INFO L231 Difference]: Finished difference. Result has 995 places, 1026 transitions, 2110 flow [2024-10-24 15:31:35,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2104, PETRI_DIFFERENCE_MINUEND_PLACES=993, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1026, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1023, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2110, PETRI_PLACES=995, PETRI_TRANSITIONS=1026} [2024-10-24 15:31:35,876 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -46 predicate places. [2024-10-24 15:31:35,876 INFO L471 AbstractCegarLoop]: Abstraction has has 995 places, 1026 transitions, 2110 flow [2024-10-24 15:31:35,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1073.6666666666667) internal successors, (3221), 3 states have internal predecessors, (3221), 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) [2024-10-24 15:31:35,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:35,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:35,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 15:31:35,877 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:35,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1030864098, now seen corresponding path program 1 times [2024-10-24 15:31:35,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:35,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510457374] [2024-10-24 15:31:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:35,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:35,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:35,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510457374] [2024-10-24 15:31:35,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510457374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:35,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:35,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779094654] [2024-10-24 15:31:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:35,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:35,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:35,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:35,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:35,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1112 [2024-10-24 15:31:35,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 995 places, 1026 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 1056.6666666666667) internal successors, (3170), 3 states have internal predecessors, (3170), 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) [2024-10-24 15:31:35,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:35,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1112 [2024-10-24 15:31:35,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:40,215 INFO L124 PetriNetUnfolderBase]: 1560/19946 cut-off events. [2024-10-24 15:31:40,216 INFO L125 PetriNetUnfolderBase]: For 144/150 co-relation queries the response was YES. [2024-10-24 15:31:40,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21183 conditions, 19946 events. 1560/19946 cut-off events. For 144/150 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 223223 event pairs, 370 based on Foata normal form. 0/16098 useless extension candidates. Maximal degree in co-relation 15915. Up to 1175 conditions per place. [2024-10-24 15:31:40,821 INFO L140 encePairwiseOnDemand]: 1100/1112 looper letters, 29 selfloop transitions, 2 changer transitions 0/1020 dead transitions. [2024-10-24 15:31:40,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 987 places, 1020 transitions, 2162 flow [2024-10-24 15:31:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3206 transitions. [2024-10-24 15:31:40,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9610311750599521 [2024-10-24 15:31:40,823 INFO L175 Difference]: Start difference. First operand has 995 places, 1026 transitions, 2110 flow. Second operand 3 states and 3206 transitions. [2024-10-24 15:31:40,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 987 places, 1020 transitions, 2162 flow [2024-10-24 15:31:40,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 985 places, 1020 transitions, 2156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:40,837 INFO L231 Difference]: Finished difference. Result has 986 places, 1018 transitions, 2098 flow [2024-10-24 15:31:40,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2084, PETRI_DIFFERENCE_MINUEND_PLACES=983, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1014, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2098, PETRI_PLACES=986, PETRI_TRANSITIONS=1018} [2024-10-24 15:31:40,839 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -55 predicate places. [2024-10-24 15:31:40,839 INFO L471 AbstractCegarLoop]: Abstraction has has 986 places, 1018 transitions, 2098 flow [2024-10-24 15:31:40,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.6666666666667) internal successors, (3170), 3 states have internal predecessors, (3170), 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) [2024-10-24 15:31:40,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:40,840 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:40,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 15:31:40,840 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:40,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:40,841 INFO L85 PathProgramCache]: Analyzing trace with hash -366839030, now seen corresponding path program 1 times [2024-10-24 15:31:40,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:40,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723523601] [2024-10-24 15:31:40,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:40,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:40,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:40,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:40,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723523601] [2024-10-24 15:31:40,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723523601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:40,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:40,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:40,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176953535] [2024-10-24 15:31:40,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:40,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:40,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:40,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:40,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:40,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:31:40,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 1018 transitions, 2098 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 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) [2024-10-24 15:31:40,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:40,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:31:40,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:41,599 INFO L124 PetriNetUnfolderBase]: 180/3058 cut-off events. [2024-10-24 15:31:41,599 INFO L125 PetriNetUnfolderBase]: For 44/58 co-relation queries the response was YES. [2024-10-24 15:31:41,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 3058 events. 180/3058 cut-off events. For 44/58 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 22337 event pairs, 37 based on Foata normal form. 1/2538 useless extension candidates. Maximal degree in co-relation 2524. Up to 139 conditions per place. [2024-10-24 15:31:41,701 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 22 selfloop transitions, 2 changer transitions 0/1019 dead transitions. [2024-10-24 15:31:41,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 987 places, 1019 transitions, 2150 flow [2024-10-24 15:31:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3232 transitions. [2024-10-24 15:31:41,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9688249400479616 [2024-10-24 15:31:41,704 INFO L175 Difference]: Start difference. First operand has 986 places, 1018 transitions, 2098 flow. Second operand 3 states and 3232 transitions. [2024-10-24 15:31:41,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 987 places, 1019 transitions, 2150 flow [2024-10-24 15:31:41,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 987 places, 1019 transitions, 2150 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:31:41,714 INFO L231 Difference]: Finished difference. Result has 987 places, 1017 transitions, 2100 flow [2024-10-24 15:31:41,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2096, PETRI_DIFFERENCE_MINUEND_PLACES=985, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1015, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2100, PETRI_PLACES=987, PETRI_TRANSITIONS=1017} [2024-10-24 15:31:41,716 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -54 predicate places. [2024-10-24 15:31:41,716 INFO L471 AbstractCegarLoop]: Abstraction has has 987 places, 1017 transitions, 2100 flow [2024-10-24 15:31:41,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 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) [2024-10-24 15:31:41,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:41,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:41,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 15:31:41,717 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:41,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1453408567, now seen corresponding path program 1 times [2024-10-24 15:31:41,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:41,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570695592] [2024-10-24 15:31:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:41,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:41,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:41,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570695592] [2024-10-24 15:31:41,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570695592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:41,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:41,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:41,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711649437] [2024-10-24 15:31:41,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:41,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:41,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:41,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:41,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1063 out of 1112 [2024-10-24 15:31:41,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 987 places, 1017 transitions, 2100 flow. Second operand has 3 states, 3 states have (on average 1064.6666666666667) internal successors, (3194), 3 states have internal predecessors, (3194), 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) [2024-10-24 15:31:41,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:41,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1063 of 1112 [2024-10-24 15:31:41,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:42,966 INFO L124 PetriNetUnfolderBase]: 298/5500 cut-off events. [2024-10-24 15:31:42,966 INFO L125 PetriNetUnfolderBase]: For 14/28 co-relation queries the response was YES. [2024-10-24 15:31:43,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5754 conditions, 5500 events. 298/5500 cut-off events. For 14/28 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 44854 event pairs, 15 based on Foata normal form. 0/4551 useless extension candidates. Maximal degree in co-relation 5387. Up to 68 conditions per place. [2024-10-24 15:31:43,104 INFO L140 encePairwiseOnDemand]: 1097/1112 looper letters, 20 selfloop transitions, 9 changer transitions 0/1017 dead transitions. [2024-10-24 15:31:43,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 983 places, 1017 transitions, 2160 flow [2024-10-24 15:31:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:43,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3224 transitions. [2024-10-24 15:31:43,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9664268585131894 [2024-10-24 15:31:43,107 INFO L175 Difference]: Start difference. First operand has 987 places, 1017 transitions, 2100 flow. Second operand 3 states and 3224 transitions. [2024-10-24 15:31:43,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 983 places, 1017 transitions, 2160 flow [2024-10-24 15:31:43,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 981 places, 1017 transitions, 2156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:43,120 INFO L231 Difference]: Finished difference. Result has 982 places, 1015 transitions, 2127 flow [2024-10-24 15:31:43,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2084, PETRI_DIFFERENCE_MINUEND_PLACES=979, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1011, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1002, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2127, PETRI_PLACES=982, PETRI_TRANSITIONS=1015} [2024-10-24 15:31:43,122 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -59 predicate places. [2024-10-24 15:31:43,122 INFO L471 AbstractCegarLoop]: Abstraction has has 982 places, 1015 transitions, 2127 flow [2024-10-24 15:31:43,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1064.6666666666667) internal successors, (3194), 3 states have internal predecessors, (3194), 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) [2024-10-24 15:31:43,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:43,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:43,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 15:31:43,124 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:43,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash -956146267, now seen corresponding path program 1 times [2024-10-24 15:31:43,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:43,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87455718] [2024-10-24 15:31:43,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:43,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:43,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:43,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:43,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87455718] [2024-10-24 15:31:43,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87455718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:43,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:43,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:43,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988120409] [2024-10-24 15:31:43,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:43,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:43,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:43,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:43,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:43,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1071 out of 1112 [2024-10-24 15:31:43,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 982 places, 1015 transitions, 2127 flow. Second operand has 3 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 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) [2024-10-24 15:31:43,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:43,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1071 of 1112 [2024-10-24 15:31:43,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:44,552 INFO L124 PetriNetUnfolderBase]: 285/5368 cut-off events. [2024-10-24 15:31:44,552 INFO L125 PetriNetUnfolderBase]: For 113/166 co-relation queries the response was YES. [2024-10-24 15:31:44,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5675 conditions, 5368 events. 285/5368 cut-off events. For 113/166 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 47647 event pairs, 30 based on Foata normal form. 0/4450 useless extension candidates. Maximal degree in co-relation 5082. Up to 105 conditions per place. [2024-10-24 15:31:44,752 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 23 selfloop transitions, 3 changer transitions 0/1016 dead transitions. [2024-10-24 15:31:44,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 983 places, 1016 transitions, 2183 flow [2024-10-24 15:31:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3236 transitions. [2024-10-24 15:31:44,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9700239808153477 [2024-10-24 15:31:44,755 INFO L175 Difference]: Start difference. First operand has 982 places, 1015 transitions, 2127 flow. Second operand 3 states and 3236 transitions. [2024-10-24 15:31:44,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 983 places, 1016 transitions, 2183 flow [2024-10-24 15:31:44,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 982 places, 1016 transitions, 2174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:31:44,777 INFO L231 Difference]: Finished difference. Result has 982 places, 1014 transitions, 2122 flow [2024-10-24 15:31:44,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=980, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1014, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1011, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=982, PETRI_TRANSITIONS=1014} [2024-10-24 15:31:44,781 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -59 predicate places. [2024-10-24 15:31:44,781 INFO L471 AbstractCegarLoop]: Abstraction has has 982 places, 1014 transitions, 2122 flow [2024-10-24 15:31:44,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 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) [2024-10-24 15:31:44,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:44,783 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:44,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 15:31:44,783 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:44,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:44,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2095080157, now seen corresponding path program 1 times [2024-10-24 15:31:44,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:44,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093079562] [2024-10-24 15:31:44,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:44,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:44,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:44,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093079562] [2024-10-24 15:31:44,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093079562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:44,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:44,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:31:44,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209344437] [2024-10-24 15:31:44,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:44,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:44,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:44,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:44,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:44,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1078 out of 1112 [2024-10-24 15:31:44,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 982 places, 1014 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 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) [2024-10-24 15:31:44,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:44,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1078 of 1112 [2024-10-24 15:31:44,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:46,078 INFO L124 PetriNetUnfolderBase]: 215/4585 cut-off events. [2024-10-24 15:31:46,078 INFO L125 PetriNetUnfolderBase]: For 12/22 co-relation queries the response was YES. [2024-10-24 15:31:46,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4787 conditions, 4585 events. 215/4585 cut-off events. For 12/22 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 38422 event pairs, 4 based on Foata normal form. 1/3825 useless extension candidates. Maximal degree in co-relation 4034. Up to 33 conditions per place. [2024-10-24 15:31:46,264 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 18 selfloop transitions, 2 changer transitions 0/1020 dead transitions. [2024-10-24 15:31:46,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 984 places, 1020 transitions, 2179 flow [2024-10-24 15:31:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3255 transitions. [2024-10-24 15:31:46,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9757194244604317 [2024-10-24 15:31:46,267 INFO L175 Difference]: Start difference. First operand has 982 places, 1014 transitions, 2122 flow. Second operand 3 states and 3255 transitions. [2024-10-24 15:31:46,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 984 places, 1020 transitions, 2179 flow [2024-10-24 15:31:46,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 982 places, 1020 transitions, 2173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:46,284 INFO L231 Difference]: Finished difference. Result has 984 places, 1015 transitions, 2130 flow [2024-10-24 15:31:46,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=980, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1014, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1012, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=984, PETRI_TRANSITIONS=1015} [2024-10-24 15:31:46,286 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -57 predicate places. [2024-10-24 15:31:46,286 INFO L471 AbstractCegarLoop]: Abstraction has has 984 places, 1015 transitions, 2130 flow [2024-10-24 15:31:46,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 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) [2024-10-24 15:31:46,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:46,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:46,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 15:31:46,287 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:46,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash -972581327, now seen corresponding path program 1 times [2024-10-24 15:31:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:46,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805032447] [2024-10-24 15:31:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:46,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:46,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805032447] [2024-10-24 15:31:46,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805032447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:46,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:46,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:46,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891063871] [2024-10-24 15:31:46,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:46,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:46,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:46,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1063 out of 1112 [2024-10-24 15:31:46,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 984 places, 1015 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 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) [2024-10-24 15:31:46,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:46,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1063 of 1112 [2024-10-24 15:31:46,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:47,393 INFO L124 PetriNetUnfolderBase]: 255/4097 cut-off events. [2024-10-24 15:31:47,394 INFO L125 PetriNetUnfolderBase]: For 69/81 co-relation queries the response was YES. [2024-10-24 15:31:47,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4454 conditions, 4097 events. 255/4097 cut-off events. For 69/81 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 32828 event pairs, 42 based on Foata normal form. 3/3439 useless extension candidates. Maximal degree in co-relation 3682. Up to 142 conditions per place. [2024-10-24 15:31:47,591 INFO L140 encePairwiseOnDemand]: 1097/1112 looper letters, 16 selfloop transitions, 8 changer transitions 14/1015 dead transitions. [2024-10-24 15:31:47,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 980 places, 1015 transitions, 2188 flow [2024-10-24 15:31:47,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:47,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3223 transitions. [2024-10-24 15:31:47,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9661270983213429 [2024-10-24 15:31:47,595 INFO L175 Difference]: Start difference. First operand has 984 places, 1015 transitions, 2130 flow. Second operand 3 states and 3223 transitions. [2024-10-24 15:31:47,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 980 places, 1015 transitions, 2188 flow [2024-10-24 15:31:47,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 979 places, 1015 transitions, 2186 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:31:47,610 INFO L231 Difference]: Finished difference. Result has 980 places, 999 transitions, 2123 flow [2024-10-24 15:31:47,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=977, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1009, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1001, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2123, PETRI_PLACES=980, PETRI_TRANSITIONS=999} [2024-10-24 15:31:47,611 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -61 predicate places. [2024-10-24 15:31:47,611 INFO L471 AbstractCegarLoop]: Abstraction has has 980 places, 999 transitions, 2123 flow [2024-10-24 15:31:47,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 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) [2024-10-24 15:31:47,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:47,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:47,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 15:31:47,613 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:47,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:47,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1901075455, now seen corresponding path program 1 times [2024-10-24 15:31:47,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463118544] [2024-10-24 15:31:47,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:47,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:47,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:47,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:47,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463118544] [2024-10-24 15:31:47,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463118544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:47,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:47,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:47,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835535116] [2024-10-24 15:31:47,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:47,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:47,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:47,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:47,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:47,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1057 out of 1112 [2024-10-24 15:31:47,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 980 places, 999 transitions, 2123 flow. Second operand has 3 states, 3 states have (on average 1058.6666666666667) internal successors, (3176), 3 states have internal predecessors, (3176), 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) [2024-10-24 15:31:47,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:47,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1057 of 1112 [2024-10-24 15:31:47,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:50,460 INFO L124 PetriNetUnfolderBase]: 488/9044 cut-off events. [2024-10-24 15:31:50,460 INFO L125 PetriNetUnfolderBase]: For 80/116 co-relation queries the response was YES. [2024-10-24 15:31:50,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9907 conditions, 9044 events. 488/9044 cut-off events. For 80/116 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 83309 event pairs, 14 based on Foata normal form. 2/7652 useless extension candidates. Maximal degree in co-relation 9080. Up to 166 conditions per place. [2024-10-24 15:31:50,647 INFO L140 encePairwiseOnDemand]: 1095/1112 looper letters, 23 selfloop transitions, 9 changer transitions 0/997 dead transitions. [2024-10-24 15:31:50,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 997 transitions, 2185 flow [2024-10-24 15:31:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:50,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3211 transitions. [2024-10-24 15:31:50,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9625299760191847 [2024-10-24 15:31:50,650 INFO L175 Difference]: Start difference. First operand has 980 places, 999 transitions, 2123 flow. Second operand 3 states and 3211 transitions. [2024-10-24 15:31:50,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 997 transitions, 2185 flow [2024-10-24 15:31:50,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 997 transitions, 2177 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:31:50,666 INFO L231 Difference]: Finished difference. Result has 961 places, 995 transitions, 2151 flow [2024-10-24 15:31:50,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2099, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=991, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2151, PETRI_PLACES=961, PETRI_TRANSITIONS=995} [2024-10-24 15:31:50,668 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -80 predicate places. [2024-10-24 15:31:50,668 INFO L471 AbstractCegarLoop]: Abstraction has has 961 places, 995 transitions, 2151 flow [2024-10-24 15:31:50,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1058.6666666666667) internal successors, (3176), 3 states have internal predecessors, (3176), 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) [2024-10-24 15:31:50,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:50,669 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:50,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 15:31:50,669 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:50,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:50,670 INFO L85 PathProgramCache]: Analyzing trace with hash -95304662, now seen corresponding path program 1 times [2024-10-24 15:31:50,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:50,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843640620] [2024-10-24 15:31:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:50,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:50,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:50,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:50,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843640620] [2024-10-24 15:31:50,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843640620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:50,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:50,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:50,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319453914] [2024-10-24 15:31:50,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:50,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:50,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:50,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:50,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:31:50,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 961 places, 995 transitions, 2151 flow. Second operand has 3 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 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) [2024-10-24 15:31:50,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:50,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:31:50,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:52,729 INFO L124 PetriNetUnfolderBase]: 367/7058 cut-off events. [2024-10-24 15:31:52,729 INFO L125 PetriNetUnfolderBase]: For 166/204 co-relation queries the response was YES. [2024-10-24 15:31:52,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7780 conditions, 7058 events. 367/7058 cut-off events. For 166/204 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 68240 event pairs, 48 based on Foata normal form. 2/5984 useless extension candidates. Maximal degree in co-relation 6211. Up to 147 conditions per place. [2024-10-24 15:31:53,069 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 24 selfloop transitions, 3 changer transitions 0/996 dead transitions. [2024-10-24 15:31:53,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 996 transitions, 2209 flow [2024-10-24 15:31:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:53,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2024-10-24 15:31:53,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9685251798561151 [2024-10-24 15:31:53,071 INFO L175 Difference]: Start difference. First operand has 961 places, 995 transitions, 2151 flow. Second operand 3 states and 3231 transitions. [2024-10-24 15:31:53,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 996 transitions, 2209 flow [2024-10-24 15:31:53,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 996 transitions, 2191 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:53,084 INFO L231 Difference]: Finished difference. Result has 960 places, 994 transitions, 2137 flow [2024-10-24 15:31:53,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2131, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=994, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2137, PETRI_PLACES=960, PETRI_TRANSITIONS=994} [2024-10-24 15:31:53,085 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -81 predicate places. [2024-10-24 15:31:53,085 INFO L471 AbstractCegarLoop]: Abstraction has has 960 places, 994 transitions, 2137 flow [2024-10-24 15:31:53,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 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) [2024-10-24 15:31:53,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:53,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:53,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 15:31:53,087 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:53,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:53,087 INFO L85 PathProgramCache]: Analyzing trace with hash -347496526, now seen corresponding path program 1 times [2024-10-24 15:31:53,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:53,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130834501] [2024-10-24 15:31:53,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:53,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:53,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:53,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130834501] [2024-10-24 15:31:53,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130834501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:53,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:53,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:53,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952596309] [2024-10-24 15:31:53,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:53,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:53,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:53,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:53,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:53,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1071 out of 1112 [2024-10-24 15:31:53,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 994 transitions, 2137 flow. Second operand has 3 states, 3 states have (on average 1073.3333333333333) internal successors, (3220), 3 states have internal predecessors, (3220), 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) [2024-10-24 15:31:53,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:53,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1071 of 1112 [2024-10-24 15:31:53,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:54,381 INFO L124 PetriNetUnfolderBase]: 259/4213 cut-off events. [2024-10-24 15:31:54,381 INFO L125 PetriNetUnfolderBase]: For 187/205 co-relation queries the response was YES. [2024-10-24 15:31:54,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4725 conditions, 4213 events. 259/4213 cut-off events. For 187/205 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 33656 event pairs, 60 based on Foata normal form. 1/3550 useless extension candidates. Maximal degree in co-relation 3940. Up to 212 conditions per place. [2024-10-24 15:31:54,578 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 20 selfloop transitions, 3 changer transitions 0/995 dead transitions. [2024-10-24 15:31:54,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 995 transitions, 2187 flow [2024-10-24 15:31:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:54,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3233 transitions. [2024-10-24 15:31:54,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9691247002398081 [2024-10-24 15:31:54,580 INFO L175 Difference]: Start difference. First operand has 960 places, 994 transitions, 2137 flow. Second operand 3 states and 3233 transitions. [2024-10-24 15:31:54,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 995 transitions, 2187 flow [2024-10-24 15:31:54,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 995 transitions, 2181 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:54,591 INFO L231 Difference]: Finished difference. Result has 959 places, 993 transitions, 2135 flow [2024-10-24 15:31:54,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2129, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=990, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2135, PETRI_PLACES=959, PETRI_TRANSITIONS=993} [2024-10-24 15:31:54,592 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -82 predicate places. [2024-10-24 15:31:54,592 INFO L471 AbstractCegarLoop]: Abstraction has has 959 places, 993 transitions, 2135 flow [2024-10-24 15:31:54,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1073.3333333333333) internal successors, (3220), 3 states have internal predecessors, (3220), 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) [2024-10-24 15:31:54,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:54,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:54,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 15:31:54,592 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:54,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2104380561, now seen corresponding path program 1 times [2024-10-24 15:31:54,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521817068] [2024-10-24 15:31:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:54,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:54,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:54,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521817068] [2024-10-24 15:31:54,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521817068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:54,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:54,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:31:54,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684246719] [2024-10-24 15:31:54,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:54,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:54,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:54,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:54,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:54,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1078 out of 1112 [2024-10-24 15:31:54,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 959 places, 993 transitions, 2135 flow. Second operand has 3 states, 3 states have (on average 1080.6666666666667) internal successors, (3242), 3 states have internal predecessors, (3242), 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) [2024-10-24 15:31:54,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:54,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1078 of 1112 [2024-10-24 15:31:54,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:56,631 INFO L124 PetriNetUnfolderBase]: 267/5701 cut-off events. [2024-10-24 15:31:56,632 INFO L125 PetriNetUnfolderBase]: For 34/90 co-relation queries the response was YES. [2024-10-24 15:31:56,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6129 conditions, 5701 events. 267/5701 cut-off events. For 34/90 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 50734 event pairs, 8 based on Foata normal form. 0/4817 useless extension candidates. Maximal degree in co-relation 4950. Up to 89 conditions per place. [2024-10-24 15:31:57,025 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 15 selfloop transitions, 2 changer transitions 0/997 dead transitions. [2024-10-24 15:31:57,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 997 transitions, 2180 flow [2024-10-24 15:31:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3252 transitions. [2024-10-24 15:31:57,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9748201438848921 [2024-10-24 15:31:57,027 INFO L175 Difference]: Start difference. First operand has 959 places, 993 transitions, 2135 flow. Second operand 3 states and 3252 transitions. [2024-10-24 15:31:57,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 997 transitions, 2180 flow [2024-10-24 15:31:57,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 997 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:57,041 INFO L231 Difference]: Finished difference. Result has 961 places, 994 transitions, 2143 flow [2024-10-24 15:31:57,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2129, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2143, PETRI_PLACES=961, PETRI_TRANSITIONS=994} [2024-10-24 15:31:57,042 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -80 predicate places. [2024-10-24 15:31:57,043 INFO L471 AbstractCegarLoop]: Abstraction has has 961 places, 994 transitions, 2143 flow [2024-10-24 15:31:57,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1080.6666666666667) internal successors, (3242), 3 states have internal predecessors, (3242), 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) [2024-10-24 15:31:57,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:57,044 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:57,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 15:31:57,044 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:31:57,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash 806392463, now seen corresponding path program 1 times [2024-10-24 15:31:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979096122] [2024-10-24 15:31:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:57,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:57,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979096122] [2024-10-24 15:31:57,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979096122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:57,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:57,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:57,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021405197] [2024-10-24 15:31:57,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:57,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:57,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:57,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:57,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:57,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1057 out of 1112 [2024-10-24 15:31:57,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 961 places, 994 transitions, 2143 flow. Second operand has 3 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 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) [2024-10-24 15:31:57,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:57,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1057 of 1112 [2024-10-24 15:31:57,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:32:00,829 INFO L124 PetriNetUnfolderBase]: 631/10693 cut-off events. [2024-10-24 15:32:00,829 INFO L125 PetriNetUnfolderBase]: For 84/240 co-relation queries the response was YES. [2024-10-24 15:32:01,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11798 conditions, 10693 events. 631/10693 cut-off events. For 84/240 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 110632 event pairs, 67 based on Foata normal form. 0/9062 useless extension candidates. Maximal degree in co-relation 9704. Up to 336 conditions per place. [2024-10-24 15:32:01,582 INFO L140 encePairwiseOnDemand]: 1095/1112 looper letters, 23 selfloop transitions, 9 changer transitions 0/992 dead transitions. [2024-10-24 15:32:01,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 955 places, 992 transitions, 2205 flow [2024-10-24 15:32:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:32:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:32:01,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3211 transitions. [2024-10-24 15:32:01,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9625299760191847 [2024-10-24 15:32:01,584 INFO L175 Difference]: Start difference. First operand has 961 places, 994 transitions, 2143 flow. Second operand 3 states and 3211 transitions. [2024-10-24 15:32:01,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 955 places, 992 transitions, 2205 flow [2024-10-24 15:32:01,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 992 transitions, 2203 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:32:01,594 INFO L231 Difference]: Finished difference. Result has 956 places, 990 transitions, 2177 flow [2024-10-24 15:32:01,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2125, PETRI_DIFFERENCE_MINUEND_PLACES=952, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=986, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=977, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2177, PETRI_PLACES=956, PETRI_TRANSITIONS=990} [2024-10-24 15:32:01,595 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -85 predicate places. [2024-10-24 15:32:01,595 INFO L471 AbstractCegarLoop]: Abstraction has has 956 places, 990 transitions, 2177 flow [2024-10-24 15:32:01,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 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) [2024-10-24 15:32:01,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:01,596 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:32:01,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 15:32:01,596 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:32:01,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:01,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2063144847, now seen corresponding path program 1 times [2024-10-24 15:32:01,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:01,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447676018] [2024-10-24 15:32:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:01,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:01,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:01,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:01,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447676018] [2024-10-24 15:32:01,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447676018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:01,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:01,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:32:01,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170784079] [2024-10-24 15:32:01,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:01,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:01,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:01,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1112 [2024-10-24 15:32:01,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 990 transitions, 2177 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 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) [2024-10-24 15:32:01,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:01,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1112 [2024-10-24 15:32:01,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:32:05,062 INFO L124 PetriNetUnfolderBase]: 484/8694 cut-off events. [2024-10-24 15:32:05,062 INFO L125 PetriNetUnfolderBase]: For 386/637 co-relation queries the response was YES. [2024-10-24 15:32:05,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9793 conditions, 8694 events. 484/8694 cut-off events. For 386/637 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 92238 event pairs, 59 based on Foata normal form. 0/7387 useless extension candidates. Maximal degree in co-relation 7686. Up to 284 conditions per place. [2024-10-24 15:32:05,729 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 24 selfloop transitions, 3 changer transitions 0/991 dead transitions. [2024-10-24 15:32:05,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 991 transitions, 2235 flow [2024-10-24 15:32:05,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:32:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:32:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2024-10-24 15:32:05,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9685251798561151 [2024-10-24 15:32:05,731 INFO L175 Difference]: Start difference. First operand has 956 places, 990 transitions, 2177 flow. Second operand 3 states and 3231 transitions. [2024-10-24 15:32:05,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 991 transitions, 2235 flow [2024-10-24 15:32:05,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 991 transitions, 2217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:32:05,742 INFO L231 Difference]: Finished difference. Result has 955 places, 989 transitions, 2163 flow [2024-10-24 15:32:05,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2157, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=989, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=986, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2163, PETRI_PLACES=955, PETRI_TRANSITIONS=989} [2024-10-24 15:32:05,744 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -86 predicate places. [2024-10-24 15:32:05,744 INFO L471 AbstractCegarLoop]: Abstraction has has 955 places, 989 transitions, 2163 flow [2024-10-24 15:32:05,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 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) [2024-10-24 15:32:05,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:05,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:32:05,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 15:32:05,745 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread1Err36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:32:05,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:05,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1349876757, now seen corresponding path program 1 times [2024-10-24 15:32:05,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:05,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358676667] [2024-10-24 15:32:05,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:05,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:05,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:05,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:05,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358676667] [2024-10-24 15:32:05,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358676667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:05,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:05,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:32:05,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559506257] [2024-10-24 15:32:05,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:05,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:05,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:05,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:05,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:05,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1071 out of 1112 [2024-10-24 15:32:05,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 989 transitions, 2163 flow. Second operand has 3 states, 3 states have (on average 1072.6666666666667) internal successors, (3218), 3 states have internal predecessors, (3218), 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) [2024-10-24 15:32:05,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:05,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1071 of 1112 [2024-10-24 15:32:05,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:32:07,752 INFO L124 PetriNetUnfolderBase]: 263/5241 cut-off events. [2024-10-24 15:32:07,752 INFO L125 PetriNetUnfolderBase]: For 12/84 co-relation queries the response was YES. [2024-10-24 15:32:08,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5874 conditions, 5241 events. 263/5241 cut-off events. For 12/84 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 48411 event pairs, 6 based on Foata normal form. 2/4548 useless extension candidates. Maximal degree in co-relation 4566. Up to 106 conditions per place. [2024-10-24 15:32:08,100 INFO L140 encePairwiseOnDemand]: 1105/1112 looper letters, 15 selfloop transitions, 3 changer transitions 0/987 dead transitions. [2024-10-24 15:32:08,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 987 transitions, 2197 flow [2024-10-24 15:32:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:32:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:32:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3235 transitions. [2024-10-24 15:32:08,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9697242206235012 [2024-10-24 15:32:08,102 INFO L175 Difference]: Start difference. First operand has 955 places, 989 transitions, 2163 flow. Second operand 3 states and 3235 transitions. [2024-10-24 15:32:08,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 987 transitions, 2197 flow [2024-10-24 15:32:08,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 987 transitions, 2191 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:32:08,112 INFO L231 Difference]: Finished difference. Result has 951 places, 985 transitions, 2155 flow [2024-10-24 15:32:08,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2149, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2155, PETRI_PLACES=951, PETRI_TRANSITIONS=985} [2024-10-24 15:32:08,113 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -90 predicate places. [2024-10-24 15:32:08,113 INFO L471 AbstractCegarLoop]: Abstraction has has 951 places, 985 transitions, 2155 flow [2024-10-24 15:32:08,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1072.6666666666667) internal successors, (3218), 3 states have internal predecessors, (3218), 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) [2024-10-24 15:32:08,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:08,114 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:32:08,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 15:32:08,114 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:32:08,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:08,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1976844359, now seen corresponding path program 1 times [2024-10-24 15:32:08,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:08,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845376605] [2024-10-24 15:32:08,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:08,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:08,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:08,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845376605] [2024-10-24 15:32:08,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845376605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:08,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:08,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:32:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166154119] [2024-10-24 15:32:08,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:08,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:08,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:08,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:08,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:08,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1078 out of 1112 [2024-10-24 15:32:08,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 985 transitions, 2155 flow. Second operand has 3 states, 3 states have (on average 1081.0) internal successors, (3243), 3 states have internal predecessors, (3243), 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) [2024-10-24 15:32:08,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:08,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1078 of 1112 [2024-10-24 15:32:08,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:32:11,214 INFO L124 PetriNetUnfolderBase]: 386/8449 cut-off events. [2024-10-24 15:32:11,214 INFO L125 PetriNetUnfolderBase]: For 37/73 co-relation queries the response was YES. [2024-10-24 15:32:11,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9048 conditions, 8449 events. 386/8449 cut-off events. For 37/73 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 77438 event pairs, 16 based on Foata normal form. 2/7129 useless extension candidates. Maximal degree in co-relation 7625. Up to 183 conditions per place. [2024-10-24 15:32:11,835 INFO L140 encePairwiseOnDemand]: 1109/1112 looper letters, 14 selfloop transitions, 2 changer transitions 0/988 dead transitions. [2024-10-24 15:32:11,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 988 transitions, 2195 flow [2024-10-24 15:32:11,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:32:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:32:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3251 transitions. [2024-10-24 15:32:11,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9745203836930456 [2024-10-24 15:32:11,837 INFO L175 Difference]: Start difference. First operand has 951 places, 985 transitions, 2155 flow. Second operand 3 states and 3251 transitions. [2024-10-24 15:32:11,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 988 transitions, 2195 flow [2024-10-24 15:32:11,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 988 transitions, 2189 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:32:11,849 INFO L231 Difference]: Finished difference. Result has 953 places, 986 transitions, 2163 flow [2024-10-24 15:32:11,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1112, PETRI_DIFFERENCE_MINUEND_FLOW=2149, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=983, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2163, PETRI_PLACES=953, PETRI_TRANSITIONS=986} [2024-10-24 15:32:11,850 INFO L277 CegarLoopForPetriNet]: 1041 programPoint places, -88 predicate places. [2024-10-24 15:32:11,850 INFO L471 AbstractCegarLoop]: Abstraction has has 953 places, 986 transitions, 2163 flow [2024-10-24 15:32:11,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1081.0) internal successors, (3243), 3 states have internal predecessors, (3243), 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) [2024-10-24 15:32:11,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:11,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:32:11,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 15:32:11,851 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 279 more)] === [2024-10-24 15:32:11,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:11,852 INFO L85 PathProgramCache]: Analyzing trace with hash 54394455, now seen corresponding path program 1 times [2024-10-24 15:32:11,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:11,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699621072] [2024-10-24 15:32:11,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:11,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:11,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:11,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699621072] [2024-10-24 15:32:11,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699621072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:11,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:11,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:32:11,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458723052] [2024-10-24 15:32:11,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:11,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:11,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:11,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:11,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:11,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1057 out of 1112 [2024-10-24 15:32:11,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 986 transitions, 2163 flow. Second operand has 3 states, 3 states have (on average 1059.3333333333333) internal successors, (3178), 3 states have internal predecessors, (3178), 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) [2024-10-24 15:32:11,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:11,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1057 of 1112 [2024-10-24 15:32:11,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand