./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/goblint-regression/09-regions_04-list2_nr.i --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/goblint-regression/09-regions_04-list2_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:23:26,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:23:26,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:23:26,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:23:26,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:23:26,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:23:26,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:23:26,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:23:26,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:23:26,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:23:26,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:23:26,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:23:26,959 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:23:26,959 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:23:26,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:23:26,959 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:23:26,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:23:26,960 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:23:26,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:23:26,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:23:26,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:23:26,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:23:26,961 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:23:26,961 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:23:26,961 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:23:26,962 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:23:26,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:23:26,962 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:23:26,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:23:26,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:23:26,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:23:26,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:23:26,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:23:26,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:23:26,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:23:26,964 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:23:26,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:23:26,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:23:26,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:23:26,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:23:26,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:23:26,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2024-10-24 15:23:27,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:23:27,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:23:27,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:23:27,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:23:27,169 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:23:27,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2024-10-24 15:23:28,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:23:28,602 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:23:28,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2024-10-24 15:23:28,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82a85b21d/ee5877ca141545218cd81d4dd07eb5a1/FLAGf934dc077 [2024-10-24 15:23:28,633 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82a85b21d/ee5877ca141545218cd81d4dd07eb5a1 [2024-10-24 15:23:28,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:23:28,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:23:28,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:23:28,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:23:28,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:23:28,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:23:28" (1/1) ... [2024-10-24 15:23:28,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b91039a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:28, skipping insertion in model container [2024-10-24 15:23:28,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:23:28" (1/1) ... [2024-10-24 15:23:28,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:23:29,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:23:29,081 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:23:29,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:23:29,225 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:23:29,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29 WrapperNode [2024-10-24 15:23:29,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:23:29,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:23:29,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:23:29,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:23:29,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,291 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2024-10-24 15:23:29,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:23:29,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:23:29,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:23:29,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:23:29,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:23:29,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:23:29,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:23:29,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:23:29,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (1/1) ... [2024-10-24 15:23:29,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:23:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:29,372 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 15:23:29,377 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 15:23:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:23:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:23:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:23:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:23:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:23:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:23:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:23:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:23:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:23:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:23:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:23:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:23:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:23:29,413 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 15:23:29,538 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:23:29,540 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:23:29,956 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:23:29,956 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:23:29,991 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:23:29,992 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:23:29,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:23:29 BoogieIcfgContainer [2024-10-24 15:23:29,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:23:29,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:23:29,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:23:29,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:23:29,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:23:28" (1/3) ... [2024-10-24 15:23:29,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490e8678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:23:29, skipping insertion in model container [2024-10-24 15:23:29,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:29" (2/3) ... [2024-10-24 15:23:29,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490e8678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:23:29, skipping insertion in model container [2024-10-24 15:23:29,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:23:29" (3/3) ... [2024-10-24 15:23:30,000 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2024-10-24 15:23:30,014 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:23:30,014 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-10-24 15:23:30,014 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:23:30,079 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:23:30,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 303 transitions, 610 flow [2024-10-24 15:23:30,212 INFO L124 PetriNetUnfolderBase]: 0/302 cut-off events. [2024-10-24 15:23:30,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:30,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 302 events. 0/302 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 162 event pairs, 0 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-24 15:23:30,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 303 transitions, 610 flow [2024-10-24 15:23:30,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 302 transitions, 607 flow [2024-10-24 15:23:30,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:23:30,237 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6795032f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:23:30,237 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-24 15:23:30,242 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:23:30,243 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-24 15:23:30,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:30,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:30,243 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] [2024-10-24 15:23:30,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:30,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:30,250 INFO L85 PathProgramCache]: Analyzing trace with hash 665820996, now seen corresponding path program 1 times [2024-10-24 15:23:30,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:30,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059460855] [2024-10-24 15:23:30,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:30,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:30,866 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 15:23:30,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:30,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059460855] [2024-10-24 15:23:30,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059460855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:30,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:30,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:30,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560893254] [2024-10-24 15:23:30,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:30,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:30,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:30,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:30,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:31,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 303 [2024-10-24 15:23:31,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 302 transitions, 607 flow. Second operand has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 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 15:23:31,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:31,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 303 [2024-10-24 15:23:31,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:31,838 INFO L124 PetriNetUnfolderBase]: 560/2351 cut-off events. [2024-10-24 15:23:31,838 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:31,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3573 conditions, 2351 events. 560/2351 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14877 event pairs, 560 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 3350. Up to 1198 conditions per place. [2024-10-24 15:23:31,853 INFO L140 encePairwiseOnDemand]: 279/303 looper letters, 77 selfloop transitions, 20 changer transitions 0/298 dead transitions. [2024-10-24 15:23:31,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 298 transitions, 793 flow [2024-10-24 15:23:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:31,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1313 transitions. [2024-10-24 15:23:31,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-10-24 15:23:31,877 INFO L175 Difference]: Start difference. First operand has 306 places, 302 transitions, 607 flow. Second operand 6 states and 1313 transitions. [2024-10-24 15:23:31,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 298 transitions, 793 flow [2024-10-24 15:23:31,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 298 transitions, 792 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:31,886 INFO L231 Difference]: Finished difference. Result has 306 places, 298 transitions, 638 flow [2024-10-24 15:23:31,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=638, PETRI_PLACES=306, PETRI_TRANSITIONS=298} [2024-10-24 15:23:31,891 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2024-10-24 15:23:31,891 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 298 transitions, 638 flow [2024-10-24 15:23:31,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 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 15:23:31,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:31,892 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] [2024-10-24 15:23:31,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:23:31,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:31,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash -806874686, now seen corresponding path program 1 times [2024-10-24 15:23:31,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:31,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597334913] [2024-10-24 15:23:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:31,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:32,149 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 15:23:32,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:32,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597334913] [2024-10-24 15:23:32,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597334913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:32,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:32,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:32,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766258806] [2024-10-24 15:23:32,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:32,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:32,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:32,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:32,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:32,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 303 [2024-10-24 15:23:32,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 298 transitions, 638 flow. Second operand has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 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 15:23:32,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:32,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 303 [2024-10-24 15:23:32,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:32,931 INFO L124 PetriNetUnfolderBase]: 560/2347 cut-off events. [2024-10-24 15:23:32,931 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:32,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3589 conditions, 2347 events. 560/2347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14857 event pairs, 560 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 3391. Up to 1198 conditions per place. [2024-10-24 15:23:32,940 INFO L140 encePairwiseOnDemand]: 279/303 looper letters, 77 selfloop transitions, 20 changer transitions 0/294 dead transitions. [2024-10-24 15:23:32,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 294 transitions, 824 flow [2024-10-24 15:23:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1313 transitions. [2024-10-24 15:23:32,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-10-24 15:23:32,942 INFO L175 Difference]: Start difference. First operand has 306 places, 298 transitions, 638 flow. Second operand 6 states and 1313 transitions. [2024-10-24 15:23:32,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 294 transitions, 824 flow [2024-10-24 15:23:32,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 294 transitions, 784 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:32,949 INFO L231 Difference]: Finished difference. Result has 302 places, 294 transitions, 630 flow [2024-10-24 15:23:32,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=302, PETRI_TRANSITIONS=294} [2024-10-24 15:23:32,950 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -4 predicate places. [2024-10-24 15:23:32,950 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 294 transitions, 630 flow [2024-10-24 15:23:32,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 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 15:23:32,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:32,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:32,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:23:32,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:32,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1190899758, now seen corresponding path program 1 times [2024-10-24 15:23:32,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:32,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055160874] [2024-10-24 15:23:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:32,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:32,990 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 15:23:32,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:32,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055160874] [2024-10-24 15:23:32,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055160874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:32,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:32,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:32,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98028453] [2024-10-24 15:23:32,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:32,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:33,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 303 [2024-10-24 15:23:33,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 294 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 15:23:33,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:33,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 303 [2024-10-24 15:23:33,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:33,095 INFO L124 PetriNetUnfolderBase]: 30/743 cut-off events. [2024-10-24 15:23:33,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:33,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 743 events. 30/743 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2643 event pairs, 30 based on Foata normal form. 0/668 useless extension candidates. Maximal degree in co-relation 671. Up to 78 conditions per place. [2024-10-24 15:23:33,097 INFO L140 encePairwiseOnDemand]: 300/303 looper letters, 17 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2024-10-24 15:23:33,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 293 transitions, 666 flow [2024-10-24 15:23:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:33,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 869 transitions. [2024-10-24 15:23:33,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9559955995599559 [2024-10-24 15:23:33,099 INFO L175 Difference]: Start difference. First operand has 302 places, 294 transitions, 630 flow. Second operand 3 states and 869 transitions. [2024-10-24 15:23:33,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 293 transitions, 666 flow [2024-10-24 15:23:33,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 626 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:33,103 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 592 flow [2024-10-24 15:23:33,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=592, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-10-24 15:23:33,104 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -8 predicate places. [2024-10-24 15:23:33,104 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 592 flow [2024-10-24 15:23:33,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 15:23:33,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:33,105 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] [2024-10-24 15:23:33,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:23:33,106 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:33,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:33,106 INFO L85 PathProgramCache]: Analyzing trace with hash -51795839, now seen corresponding path program 1 times [2024-10-24 15:23:33,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:33,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436864373] [2024-10-24 15:23:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:33,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:33,143 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 15:23:33,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:33,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436864373] [2024-10-24 15:23:33,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436864373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:33,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:33,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:33,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266039052] [2024-10-24 15:23:33,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:33,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:33,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:33,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:33,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:33,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 303 [2024-10-24 15:23:33,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 592 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 15:23:33,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:33,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 303 [2024-10-24 15:23:33,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:33,223 INFO L124 PetriNetUnfolderBase]: 36/775 cut-off events. [2024-10-24 15:23:33,223 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:33,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 775 events. 36/775 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2999 event pairs, 36 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 813. Up to 89 conditions per place. [2024-10-24 15:23:33,226 INFO L140 encePairwiseOnDemand]: 298/303 looper letters, 17 selfloop transitions, 1 changer transitions 0/289 dead transitions. [2024-10-24 15:23:33,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 289 transitions, 620 flow [2024-10-24 15:23:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:33,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2024-10-24 15:23:33,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9515951595159516 [2024-10-24 15:23:33,228 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 592 flow. Second operand 3 states and 865 transitions. [2024-10-24 15:23:33,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 289 transitions, 620 flow [2024-10-24 15:23:33,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 289 transitions, 616 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:23:33,231 INFO L231 Difference]: Finished difference. Result has 294 places, 289 transitions, 582 flow [2024-10-24 15:23:33,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=294, PETRI_TRANSITIONS=289} [2024-10-24 15:23:33,233 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -12 predicate places. [2024-10-24 15:23:33,233 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 289 transitions, 582 flow [2024-10-24 15:23:33,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 15:23:33,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:33,234 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] [2024-10-24 15:23:33,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:23:33,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:33,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:33,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1997372483, now seen corresponding path program 1 times [2024-10-24 15:23:33,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:33,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790427409] [2024-10-24 15:23:33,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:33,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:33,563 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 15:23:33,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:33,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790427409] [2024-10-24 15:23:33,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790427409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:33,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:33,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:33,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710088657] [2024-10-24 15:23:33,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:33,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:33,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:33,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:33,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 303 [2024-10-24 15:23:33,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 289 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 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 15:23:33,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:33,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 303 [2024-10-24 15:23:33,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:34,208 INFO L124 PetriNetUnfolderBase]: 638/2544 cut-off events. [2024-10-24 15:23:34,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:34,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3924 conditions, 2544 events. 638/2544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16231 event pairs, 638 based on Foata normal form. 0/2342 useless extension candidates. Maximal degree in co-relation 3855. Up to 1370 conditions per place. [2024-10-24 15:23:34,216 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 93 selfloop transitions, 5 changer transitions 0/288 dead transitions. [2024-10-24 15:23:34,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 288 transitions, 776 flow [2024-10-24 15:23:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:34,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1323 transitions. [2024-10-24 15:23:34,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7277227722772277 [2024-10-24 15:23:34,219 INFO L175 Difference]: Start difference. First operand has 294 places, 289 transitions, 582 flow. Second operand 6 states and 1323 transitions. [2024-10-24 15:23:34,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 288 transitions, 776 flow [2024-10-24 15:23:34,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 288 transitions, 775 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:34,222 INFO L231 Difference]: Finished difference. Result has 297 places, 288 transitions, 589 flow [2024-10-24 15:23:34,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=589, PETRI_PLACES=297, PETRI_TRANSITIONS=288} [2024-10-24 15:23:34,223 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -9 predicate places. [2024-10-24 15:23:34,224 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 288 transitions, 589 flow [2024-10-24 15:23:34,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 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 15:23:34,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:34,225 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] [2024-10-24 15:23:34,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:23:34,225 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:34,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:34,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1310489849, now seen corresponding path program 1 times [2024-10-24 15:23:34,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:34,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418185321] [2024-10-24 15:23:34,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:34,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:34,270 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 15:23:34,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:34,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418185321] [2024-10-24 15:23:34,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418185321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:34,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:34,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:34,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66019525] [2024-10-24 15:23:34,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:34,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:34,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:34,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:34,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:34,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 303 [2024-10-24 15:23:34,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 288 transitions, 589 flow. Second operand has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 15:23:34,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:34,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 303 [2024-10-24 15:23:34,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:34,364 INFO L124 PetriNetUnfolderBase]: 30/731 cut-off events. [2024-10-24 15:23:34,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:34,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 731 events. 30/731 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2651 event pairs, 30 based on Foata normal form. 0/670 useless extension candidates. Maximal degree in co-relation 762. Up to 78 conditions per place. [2024-10-24 15:23:34,366 INFO L140 encePairwiseOnDemand]: 300/303 looper letters, 17 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-10-24 15:23:34,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 287 transitions, 625 flow [2024-10-24 15:23:34,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 869 transitions. [2024-10-24 15:23:34,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9559955995599559 [2024-10-24 15:23:34,368 INFO L175 Difference]: Start difference. First operand has 297 places, 288 transitions, 589 flow. Second operand 3 states and 869 transitions. [2024-10-24 15:23:34,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 287 transitions, 625 flow [2024-10-24 15:23:34,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 287 transitions, 615 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:34,371 INFO L231 Difference]: Finished difference. Result has 293 places, 287 transitions, 581 flow [2024-10-24 15:23:34,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=581, PETRI_PLACES=293, PETRI_TRANSITIONS=287} [2024-10-24 15:23:34,372 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -13 predicate places. [2024-10-24 15:23:34,372 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 287 transitions, 581 flow [2024-10-24 15:23:34,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 15:23:34,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:34,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:34,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:23:34,373 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:34,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:34,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1070039900, now seen corresponding path program 1 times [2024-10-24 15:23:34,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:34,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097627997] [2024-10-24 15:23:34,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:34,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:34,412 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 15:23:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097627997] [2024-10-24 15:23:34,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097627997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:34,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:34,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495000620] [2024-10-24 15:23:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:34,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:34,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:34,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:34,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:34,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 303 [2024-10-24 15:23:34,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 287 transitions, 581 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 15:23:34,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:34,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 303 [2024-10-24 15:23:34,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:34,486 INFO L124 PetriNetUnfolderBase]: 36/759 cut-off events. [2024-10-24 15:23:34,486 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:34,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 759 events. 36/759 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2902 event pairs, 36 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 799. Up to 89 conditions per place. [2024-10-24 15:23:34,489 INFO L140 encePairwiseOnDemand]: 298/303 looper letters, 17 selfloop transitions, 1 changer transitions 0/283 dead transitions. [2024-10-24 15:23:34,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 283 transitions, 609 flow [2024-10-24 15:23:34,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2024-10-24 15:23:34,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9515951595159516 [2024-10-24 15:23:34,491 INFO L175 Difference]: Start difference. First operand has 293 places, 287 transitions, 581 flow. Second operand 3 states and 865 transitions. [2024-10-24 15:23:34,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 283 transitions, 609 flow [2024-10-24 15:23:34,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 283 transitions, 605 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:23:34,494 INFO L231 Difference]: Finished difference. Result has 289 places, 283 transitions, 571 flow [2024-10-24 15:23:34,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=289, PETRI_TRANSITIONS=283} [2024-10-24 15:23:34,495 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -17 predicate places. [2024-10-24 15:23:34,495 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 283 transitions, 571 flow [2024-10-24 15:23:34,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 15:23:34,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:34,496 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] [2024-10-24 15:23:34,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:23:34,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:34,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:34,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1257937337, now seen corresponding path program 1 times [2024-10-24 15:23:34,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:34,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812858448] [2024-10-24 15:23:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:34,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:34,975 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 15:23:34,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:34,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812858448] [2024-10-24 15:23:34,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812858448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:34,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:34,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:34,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808495394] [2024-10-24 15:23:34,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:34,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:34,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:34,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:34,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:35,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 303 [2024-10-24 15:23:35,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 283 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 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 15:23:35,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:35,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 303 [2024-10-24 15:23:35,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:35,582 INFO L124 PetriNetUnfolderBase]: 638/2453 cut-off events. [2024-10-24 15:23:35,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:35,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3834 conditions, 2453 events. 638/2453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 15350 event pairs, 638 based on Foata normal form. 0/2306 useless extension candidates. Maximal degree in co-relation 3766. Up to 1370 conditions per place. [2024-10-24 15:23:35,591 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 93 selfloop transitions, 5 changer transitions 0/282 dead transitions. [2024-10-24 15:23:35,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 282 transitions, 765 flow [2024-10-24 15:23:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:35,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1323 transitions. [2024-10-24 15:23:35,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7277227722772277 [2024-10-24 15:23:35,595 INFO L175 Difference]: Start difference. First operand has 289 places, 283 transitions, 571 flow. Second operand 6 states and 1323 transitions. [2024-10-24 15:23:35,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 282 transitions, 765 flow [2024-10-24 15:23:35,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 282 transitions, 764 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:35,599 INFO L231 Difference]: Finished difference. Result has 292 places, 282 transitions, 578 flow [2024-10-24 15:23:35,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=292, PETRI_TRANSITIONS=282} [2024-10-24 15:23:35,600 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -14 predicate places. [2024-10-24 15:23:35,600 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 282 transitions, 578 flow [2024-10-24 15:23:35,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 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 15:23:35,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:35,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:35,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:23:35,601 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:35,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:35,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1020988562, now seen corresponding path program 1 times [2024-10-24 15:23:35,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:35,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563347886] [2024-10-24 15:23:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:35,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:36,026 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 15:23:36,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:36,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563347886] [2024-10-24 15:23:36,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563347886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:36,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:36,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:36,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581479157] [2024-10-24 15:23:36,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:36,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:36,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:36,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:36,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:36,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 303 [2024-10-24 15:23:36,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 282 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 15:23:36,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:36,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 303 [2024-10-24 15:23:36,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:36,780 INFO L124 PetriNetUnfolderBase]: 232/1812 cut-off events. [2024-10-24 15:23:36,780 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:36,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2378 conditions, 1812 events. 232/1812 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 11411 event pairs, 20 based on Foata normal form. 0/1688 useless extension candidates. Maximal degree in co-relation 2310. Up to 313 conditions per place. [2024-10-24 15:23:36,786 INFO L140 encePairwiseOnDemand]: 284/303 looper letters, 108 selfloop transitions, 38 changer transitions 0/356 dead transitions. [2024-10-24 15:23:36,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 356 transitions, 1018 flow [2024-10-24 15:23:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:36,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1534 transitions. [2024-10-24 15:23:36,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8437843784378438 [2024-10-24 15:23:36,788 INFO L175 Difference]: Start difference. First operand has 292 places, 282 transitions, 578 flow. Second operand 6 states and 1534 transitions. [2024-10-24 15:23:36,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 356 transitions, 1018 flow [2024-10-24 15:23:36,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 356 transitions, 1008 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:36,796 INFO L231 Difference]: Finished difference. Result has 296 places, 318 transitions, 826 flow [2024-10-24 15:23:36,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=296, PETRI_TRANSITIONS=318} [2024-10-24 15:23:36,797 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -10 predicate places. [2024-10-24 15:23:36,797 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 318 transitions, 826 flow [2024-10-24 15:23:36,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 15:23:36,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:36,798 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] [2024-10-24 15:23:36,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:23:36,799 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:36,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:36,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1700975626, now seen corresponding path program 1 times [2024-10-24 15:23:36,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:36,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099452438] [2024-10-24 15:23:36,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:36,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:37,229 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 15:23:37,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:37,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099452438] [2024-10-24 15:23:37,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099452438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:37,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:37,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:37,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632705267] [2024-10-24 15:23:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:37,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:37,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:37,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:37,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 303 [2024-10-24 15:23:37,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 318 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 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 15:23:37,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:37,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 303 [2024-10-24 15:23:37,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:37,842 INFO L124 PetriNetUnfolderBase]: 185/1616 cut-off events. [2024-10-24 15:23:37,842 INFO L125 PetriNetUnfolderBase]: For 202/207 co-relation queries the response was YES. [2024-10-24 15:23:37,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1616 events. 185/1616 cut-off events. For 202/207 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9995 event pairs, 75 based on Foata normal form. 0/1496 useless extension candidates. Maximal degree in co-relation 2326. Up to 362 conditions per place. [2024-10-24 15:23:37,847 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 104 selfloop transitions, 5 changer transitions 0/333 dead transitions. [2024-10-24 15:23:37,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 333 transitions, 1074 flow [2024-10-24 15:23:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1504 transitions. [2024-10-24 15:23:37,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272827282728272 [2024-10-24 15:23:37,850 INFO L175 Difference]: Start difference. First operand has 296 places, 318 transitions, 826 flow. Second operand 6 states and 1504 transitions. [2024-10-24 15:23:37,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 333 transitions, 1074 flow [2024-10-24 15:23:37,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 333 transitions, 1074 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:37,858 INFO L231 Difference]: Finished difference. Result has 300 places, 317 transitions, 834 flow [2024-10-24 15:23:37,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=834, PETRI_PLACES=300, PETRI_TRANSITIONS=317} [2024-10-24 15:23:37,860 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -6 predicate places. [2024-10-24 15:23:37,860 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 317 transitions, 834 flow [2024-10-24 15:23:37,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 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 15:23:37,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:37,861 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] [2024-10-24 15:23:37,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:23:37,861 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:37,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:37,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1294831474, now seen corresponding path program 1 times [2024-10-24 15:23:37,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:37,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108933970] [2024-10-24 15:23:37,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:37,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:38,223 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 15:23:38,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:38,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108933970] [2024-10-24 15:23:38,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108933970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:38,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:38,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:38,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291184432] [2024-10-24 15:23:38,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:38,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:38,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:38,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:38,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:38,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 303 [2024-10-24 15:23:38,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 317 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 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 15:23:38,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:38,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 303 [2024-10-24 15:23:38,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:38,945 INFO L124 PetriNetUnfolderBase]: 583/2973 cut-off events. [2024-10-24 15:23:38,945 INFO L125 PetriNetUnfolderBase]: For 700/707 co-relation queries the response was YES. [2024-10-24 15:23:38,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5060 conditions, 2973 events. 583/2973 cut-off events. For 700/707 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 21810 event pairs, 69 based on Foata normal form. 0/2786 useless extension candidates. Maximal degree in co-relation 4987. Up to 804 conditions per place. [2024-10-24 15:23:38,956 INFO L140 encePairwiseOnDemand]: 281/303 looper letters, 120 selfloop transitions, 72 changer transitions 0/406 dead transitions. [2024-10-24 15:23:38,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 406 transitions, 1588 flow [2024-10-24 15:23:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:38,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1506 transitions. [2024-10-24 15:23:38,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8283828382838284 [2024-10-24 15:23:38,960 INFO L175 Difference]: Start difference. First operand has 300 places, 317 transitions, 834 flow. Second operand 6 states and 1506 transitions. [2024-10-24 15:23:38,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 406 transitions, 1588 flow [2024-10-24 15:23:38,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 406 transitions, 1570 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:38,966 INFO L231 Difference]: Finished difference. Result has 305 places, 387 transitions, 1490 flow [2024-10-24 15:23:38,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1490, PETRI_PLACES=305, PETRI_TRANSITIONS=387} [2024-10-24 15:23:38,967 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -1 predicate places. [2024-10-24 15:23:38,967 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 387 transitions, 1490 flow [2024-10-24 15:23:38,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 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 15:23:38,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:38,968 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] [2024-10-24 15:23:38,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:23:38,968 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:38,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1841072123, now seen corresponding path program 1 times [2024-10-24 15:23:38,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:38,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727003535] [2024-10-24 15:23:38,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:38,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:39,402 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 15:23:39,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:39,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727003535] [2024-10-24 15:23:39,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727003535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:39,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:39,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:39,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356033158] [2024-10-24 15:23:39,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:39,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:39,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:39,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:39,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:39,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 303 [2024-10-24 15:23:39,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 387 transitions, 1490 flow. Second operand has 6 states, 6 states have (on average 216.66666666666666) internal successors, (1300), 6 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 15:23:39,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:39,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 303 [2024-10-24 15:23:39,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:40,407 INFO L124 PetriNetUnfolderBase]: 1657/5720 cut-off events. [2024-10-24 15:23:40,408 INFO L125 PetriNetUnfolderBase]: For 3354/3414 co-relation queries the response was YES. [2024-10-24 15:23:40,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12817 conditions, 5720 events. 1657/5720 cut-off events. For 3354/3414 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 45961 event pairs, 861 based on Foata normal form. 0/5391 useless extension candidates. Maximal degree in co-relation 12742. Up to 3155 conditions per place. [2024-10-24 15:23:40,428 INFO L140 encePairwiseOnDemand]: 280/303 looper letters, 209 selfloop transitions, 89 changer transitions 0/487 dead transitions. [2024-10-24 15:23:40,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 487 transitions, 2490 flow [2024-10-24 15:23:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2024-10-24 15:23:40,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7832783278327833 [2024-10-24 15:23:40,431 INFO L175 Difference]: Start difference. First operand has 305 places, 387 transitions, 1490 flow. Second operand 6 states and 1424 transitions. [2024-10-24 15:23:40,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 487 transitions, 2490 flow [2024-10-24 15:23:40,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 487 transitions, 2490 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:40,443 INFO L231 Difference]: Finished difference. Result has 315 places, 471 transitions, 2292 flow [2024-10-24 15:23:40,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1490, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2292, PETRI_PLACES=315, PETRI_TRANSITIONS=471} [2024-10-24 15:23:40,444 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 9 predicate places. [2024-10-24 15:23:40,444 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 471 transitions, 2292 flow [2024-10-24 15:23:40,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.66666666666666) internal successors, (1300), 6 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 15:23:40,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:40,445 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] [2024-10-24 15:23:40,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 15:23:40,445 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:40,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:40,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2009852660, now seen corresponding path program 1 times [2024-10-24 15:23:40,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:40,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735592306] [2024-10-24 15:23:40,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:40,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:40,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:40,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735592306] [2024-10-24 15:23:40,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735592306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:40,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:40,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:23:40,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395386382] [2024-10-24 15:23:40,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:40,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:40,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:40,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:40,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:40,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 303 [2024-10-24 15:23:40,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 471 transitions, 2292 flow. Second operand has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 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 15:23:40,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:40,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 303 [2024-10-24 15:23:40,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:40,803 INFO L124 PetriNetUnfolderBase]: 309/1986 cut-off events. [2024-10-24 15:23:40,803 INFO L125 PetriNetUnfolderBase]: For 1179/1248 co-relation queries the response was YES. [2024-10-24 15:23:40,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 1986 events. 309/1986 cut-off events. For 1179/1248 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13329 event pairs, 31 based on Foata normal form. 4/1914 useless extension candidates. Maximal degree in co-relation 4048. Up to 312 conditions per place. [2024-10-24 15:23:40,814 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 10 selfloop transitions, 6 changer transitions 0/411 dead transitions. [2024-10-24 15:23:40,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 411 transitions, 1760 flow [2024-10-24 15:23:40,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 897 transitions. [2024-10-24 15:23:40,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9867986798679867 [2024-10-24 15:23:40,816 INFO L175 Difference]: Start difference. First operand has 315 places, 471 transitions, 2292 flow. Second operand 3 states and 897 transitions. [2024-10-24 15:23:40,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 411 transitions, 1760 flow [2024-10-24 15:23:40,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 411 transitions, 1672 flow, removed 44 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:40,828 INFO L231 Difference]: Finished difference. Result has 318 places, 409 transitions, 1662 flow [2024-10-24 15:23:40,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1628, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1662, PETRI_PLACES=318, PETRI_TRANSITIONS=409} [2024-10-24 15:23:40,830 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 12 predicate places. [2024-10-24 15:23:40,830 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 409 transitions, 1662 flow [2024-10-24 15:23:40,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 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 15:23:40,830 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:40,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:40,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:23:40,831 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:40,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:40,831 INFO L85 PathProgramCache]: Analyzing trace with hash 184465762, now seen corresponding path program 1 times [2024-10-24 15:23:40,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:40,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445664393] [2024-10-24 15:23:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:40,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:41,317 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 15:23:41,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:41,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445664393] [2024-10-24 15:23:41,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445664393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:41,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:41,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:41,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728946687] [2024-10-24 15:23:41,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:41,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:41,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:41,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:41,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:41,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 303 [2024-10-24 15:23:41,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 409 transitions, 1662 flow. Second operand has 6 states, 6 states have (on average 239.66666666666666) internal successors, (1438), 6 states have internal predecessors, (1438), 0 states have call successors, (0), 0 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 15:23:41,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:41,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 303 [2024-10-24 15:23:41,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:42,254 INFO L124 PetriNetUnfolderBase]: 690/3138 cut-off events. [2024-10-24 15:23:42,254 INFO L125 PetriNetUnfolderBase]: For 3013/3231 co-relation queries the response was YES. [2024-10-24 15:23:42,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7473 conditions, 3138 events. 690/3138 cut-off events. For 3013/3231 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23958 event pairs, 54 based on Foata normal form. 20/3047 useless extension candidates. Maximal degree in co-relation 7390. Up to 742 conditions per place. [2024-10-24 15:23:42,268 INFO L140 encePairwiseOnDemand]: 284/303 looper letters, 192 selfloop transitions, 124 changer transitions 4/567 dead transitions. [2024-10-24 15:23:42,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 567 transitions, 3269 flow [2024-10-24 15:23:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:42,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:42,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1552 transitions. [2024-10-24 15:23:42,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8536853685368537 [2024-10-24 15:23:42,271 INFO L175 Difference]: Start difference. First operand has 318 places, 409 transitions, 1662 flow. Second operand 6 states and 1552 transitions. [2024-10-24 15:23:42,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 567 transitions, 3269 flow [2024-10-24 15:23:42,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 567 transitions, 3246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:42,317 INFO L231 Difference]: Finished difference. Result has 326 places, 511 transitions, 3038 flow [2024-10-24 15:23:42,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1654, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3038, PETRI_PLACES=326, PETRI_TRANSITIONS=511} [2024-10-24 15:23:42,318 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 20 predicate places. [2024-10-24 15:23:42,318 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 511 transitions, 3038 flow [2024-10-24 15:23:42,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.66666666666666) internal successors, (1438), 6 states have internal predecessors, (1438), 0 states have call successors, (0), 0 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 15:23:42,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:42,319 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 15:23:42,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:23:42,319 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:42,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1328841865, now seen corresponding path program 1 times [2024-10-24 15:23:42,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:42,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157670835] [2024-10-24 15:23:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:42,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:42,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:42,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:42,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157670835] [2024-10-24 15:23:42,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157670835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:42,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:42,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:42,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49835148] [2024-10-24 15:23:42,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:42,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:42,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:42,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:42,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:43,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 303 [2024-10-24 15:23:43,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 511 transitions, 3038 flow. Second operand has 6 states, 6 states have (on average 246.0) internal successors, (1476), 6 states have internal predecessors, (1476), 0 states have call successors, (0), 0 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 15:23:43,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:43,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 303 [2024-10-24 15:23:43,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:43,421 INFO L124 PetriNetUnfolderBase]: 605/2915 cut-off events. [2024-10-24 15:23:43,422 INFO L125 PetriNetUnfolderBase]: For 5617/5790 co-relation queries the response was YES. [2024-10-24 15:23:43,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7856 conditions, 2915 events. 605/2915 cut-off events. For 5617/5790 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 21873 event pairs, 92 based on Foata normal form. 18/2877 useless extension candidates. Maximal degree in co-relation 7770. Up to 811 conditions per place. [2024-10-24 15:23:43,434 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 226 selfloop transitions, 17 changer transitions 0/526 dead transitions. [2024-10-24 15:23:43,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 526 transitions, 3578 flow [2024-10-24 15:23:43,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1504 transitions. [2024-10-24 15:23:43,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272827282728272 [2024-10-24 15:23:43,437 INFO L175 Difference]: Start difference. First operand has 326 places, 511 transitions, 3038 flow. Second operand 6 states and 1504 transitions. [2024-10-24 15:23:43,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 526 transitions, 3578 flow [2024-10-24 15:23:43,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 526 transitions, 3560 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:43,453 INFO L231 Difference]: Finished difference. Result has 330 places, 510 transitions, 3052 flow [2024-10-24 15:23:43,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3018, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3052, PETRI_PLACES=330, PETRI_TRANSITIONS=510} [2024-10-24 15:23:43,455 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 24 predicate places. [2024-10-24 15:23:43,455 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 510 transitions, 3052 flow [2024-10-24 15:23:43,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.0) internal successors, (1476), 6 states have internal predecessors, (1476), 0 states have call successors, (0), 0 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 15:23:43,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:43,456 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] [2024-10-24 15:23:43,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 15:23:43,456 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:43,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1396133518, now seen corresponding path program 1 times [2024-10-24 15:23:43,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:43,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342125142] [2024-10-24 15:23:43,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:43,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:43,835 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 15:23:43,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:43,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342125142] [2024-10-24 15:23:43,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342125142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:43,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:43,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:43,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981411419] [2024-10-24 15:23:43,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:43,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:43,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:43,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:43,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:44,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 303 [2024-10-24 15:23:44,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 510 transitions, 3052 flow. Second operand has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 15:23:44,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:44,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 303 [2024-10-24 15:23:44,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:44,699 INFO L124 PetriNetUnfolderBase]: 1547/5186 cut-off events. [2024-10-24 15:23:44,699 INFO L125 PetriNetUnfolderBase]: For 7490/7571 co-relation queries the response was YES. [2024-10-24 15:23:44,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15171 conditions, 5186 events. 1547/5186 cut-off events. For 7490/7571 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 41346 event pairs, 582 based on Foata normal form. 1/5034 useless extension candidates. Maximal degree in co-relation 15084. Up to 2889 conditions per place. [2024-10-24 15:23:44,723 INFO L140 encePairwiseOnDemand]: 280/303 looper letters, 312 selfloop transitions, 103 changer transitions 8/616 dead transitions. [2024-10-24 15:23:44,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 616 transitions, 4508 flow [2024-10-24 15:23:44,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:44,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2024-10-24 15:23:44,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7832783278327833 [2024-10-24 15:23:44,726 INFO L175 Difference]: Start difference. First operand has 330 places, 510 transitions, 3052 flow. Second operand 6 states and 1424 transitions. [2024-10-24 15:23:44,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 616 transitions, 4508 flow [2024-10-24 15:23:44,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 616 transitions, 4474 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:44,751 INFO L231 Difference]: Finished difference. Result has 335 places, 596 transitions, 4036 flow [2024-10-24 15:23:44,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3018, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4036, PETRI_PLACES=335, PETRI_TRANSITIONS=596} [2024-10-24 15:23:44,752 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 29 predicate places. [2024-10-24 15:23:44,752 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 596 transitions, 4036 flow [2024-10-24 15:23:44,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 15:23:44,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:44,753 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 15:23:44,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 15:23:44,753 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:44,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:44,753 INFO L85 PathProgramCache]: Analyzing trace with hash 72147898, now seen corresponding path program 1 times [2024-10-24 15:23:44,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:44,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642507915] [2024-10-24 15:23:44,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:44,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:46,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:46,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642507915] [2024-10-24 15:23:46,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642507915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:46,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:46,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-24 15:23:46,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150543426] [2024-10-24 15:23:46,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:46,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-24 15:23:46,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:46,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-24 15:23:46,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2024-10-24 15:23:48,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 303 [2024-10-24 15:23:48,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 596 transitions, 4036 flow. Second operand has 24 states, 24 states have (on average 160.04166666666666) internal successors, (3841), 24 states have internal predecessors, (3841), 0 states have call successors, (0), 0 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 15:23:48,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:48,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 303 [2024-10-24 15:23:48,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:50,554 INFO L124 PetriNetUnfolderBase]: 1733/5599 cut-off events. [2024-10-24 15:23:50,554 INFO L125 PetriNetUnfolderBase]: For 11190/11272 co-relation queries the response was YES. [2024-10-24 15:23:50,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18568 conditions, 5599 events. 1733/5599 cut-off events. For 11190/11272 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 45023 event pairs, 507 based on Foata normal form. 14/5545 useless extension candidates. Maximal degree in co-relation 18461. Up to 2210 conditions per place. [2024-10-24 15:23:50,579 INFO L140 encePairwiseOnDemand]: 265/303 looper letters, 531 selfloop transitions, 110 changer transitions 30/810 dead transitions. [2024-10-24 15:23:50,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 810 transitions, 6968 flow [2024-10-24 15:23:50,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-24 15:23:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-24 15:23:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5731 transitions. [2024-10-24 15:23:50,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5404054691183404 [2024-10-24 15:23:50,589 INFO L175 Difference]: Start difference. First operand has 335 places, 596 transitions, 4036 flow. Second operand 35 states and 5731 transitions. [2024-10-24 15:23:50,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 810 transitions, 6968 flow [2024-10-24 15:23:50,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 810 transitions, 6764 flow, removed 102 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:50,632 INFO L231 Difference]: Finished difference. Result has 379 places, 628 transitions, 4474 flow [2024-10-24 15:23:50,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3888, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=4474, PETRI_PLACES=379, PETRI_TRANSITIONS=628} [2024-10-24 15:23:50,632 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 73 predicate places. [2024-10-24 15:23:50,633 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 628 transitions, 4474 flow [2024-10-24 15:23:50,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 160.04166666666666) internal successors, (3841), 24 states have internal predecessors, (3841), 0 states have call successors, (0), 0 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 15:23:50,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:50,634 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 15:23:50,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 15:23:50,634 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:50,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash 193562789, now seen corresponding path program 1 times [2024-10-24 15:23:50,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:50,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295676068] [2024-10-24 15:23:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:50,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:52,055 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 15:23:52,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:52,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295676068] [2024-10-24 15:23:52,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295676068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:52,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:52,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 15:23:52,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215164585] [2024-10-24 15:23:52,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:52,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:23:52,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:23:52,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:23:56,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-24 15:23:56,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 628 transitions, 4474 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:23:56,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:56,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-24 15:23:56,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:57,573 INFO L124 PetriNetUnfolderBase]: 1401/5264 cut-off events. [2024-10-24 15:23:57,573 INFO L125 PetriNetUnfolderBase]: For 13169/13328 co-relation queries the response was YES. [2024-10-24 15:23:57,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17741 conditions, 5264 events. 1401/5264 cut-off events. For 13169/13328 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 44595 event pairs, 197 based on Foata normal form. 27/5224 useless extension candidates. Maximal degree in co-relation 17617. Up to 1530 conditions per place. [2024-10-24 15:23:57,596 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 389 selfloop transitions, 125 changer transitions 7/771 dead transitions. [2024-10-24 15:23:57,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 771 transitions, 6739 flow [2024-10-24 15:23:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-24 15:23:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-10-24 15:23:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 5079 transitions. [2024-10-24 15:23:57,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6208287495416208 [2024-10-24 15:23:57,601 INFO L175 Difference]: Start difference. First operand has 379 places, 628 transitions, 4474 flow. Second operand 27 states and 5079 transitions. [2024-10-24 15:23:57,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 771 transitions, 6739 flow [2024-10-24 15:23:57,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 771 transitions, 6611 flow, removed 48 selfloop flow, removed 14 redundant places. [2024-10-24 15:23:57,646 INFO L231 Difference]: Finished difference. Result has 399 places, 687 transitions, 5592 flow [2024-10-24 15:23:57,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=4382, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5592, PETRI_PLACES=399, PETRI_TRANSITIONS=687} [2024-10-24 15:23:57,647 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 93 predicate places. [2024-10-24 15:23:57,647 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 687 transitions, 5592 flow [2024-10-24 15:23:57,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:23:57,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:57,649 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 15:23:57,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 15:23:57,649 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:23:57,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:57,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1087645431, now seen corresponding path program 2 times [2024-10-24 15:23:57,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:57,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846774353] [2024-10-24 15:23:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:57,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:59,013 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 15:23:59,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:59,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846774353] [2024-10-24 15:23:59,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846774353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:59,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:59,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 15:23:59,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540822206] [2024-10-24 15:23:59,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:59,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:23:59,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:59,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:23:59,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:24:02,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-24 15:24:02,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 687 transitions, 5592 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:02,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:02,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-24 15:24:02,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:03,787 INFO L124 PetriNetUnfolderBase]: 1459/5384 cut-off events. [2024-10-24 15:24:03,787 INFO L125 PetriNetUnfolderBase]: For 17379/17557 co-relation queries the response was YES. [2024-10-24 15:24:03,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19356 conditions, 5384 events. 1459/5384 cut-off events. For 17379/17557 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 45296 event pairs, 191 based on Foata normal form. 58/5375 useless extension candidates. Maximal degree in co-relation 19222. Up to 1137 conditions per place. [2024-10-24 15:24:03,830 INFO L140 encePairwiseOnDemand]: 267/303 looper letters, 412 selfloop transitions, 153 changer transitions 8/823 dead transitions. [2024-10-24 15:24:03,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 823 transitions, 7880 flow [2024-10-24 15:24:03,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-24 15:24:03,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-10-24 15:24:03,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 6187 transitions. [2024-10-24 15:24:03,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6187618761876188 [2024-10-24 15:24:03,835 INFO L175 Difference]: Start difference. First operand has 399 places, 687 transitions, 5592 flow. Second operand 33 states and 6187 transitions. [2024-10-24 15:24:03,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 823 transitions, 7880 flow [2024-10-24 15:24:03,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 823 transitions, 7797 flow, removed 20 selfloop flow, removed 17 redundant places. [2024-10-24 15:24:03,907 INFO L231 Difference]: Finished difference. Result has 425 places, 742 transitions, 6615 flow [2024-10-24 15:24:03,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=5535, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=6615, PETRI_PLACES=425, PETRI_TRANSITIONS=742} [2024-10-24 15:24:03,908 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 119 predicate places. [2024-10-24 15:24:03,908 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 742 transitions, 6615 flow [2024-10-24 15:24:03,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:03,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:03,914 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 15:24:03,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 15:24:03,915 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:24:03,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:03,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1128305695, now seen corresponding path program 3 times [2024-10-24 15:24:03,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:03,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233146499] [2024-10-24 15:24:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:03,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:05,091 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 15:24:05,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:05,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233146499] [2024-10-24 15:24:05,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233146499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:05,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:05,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 15:24:05,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803780359] [2024-10-24 15:24:05,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:05,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:24:05,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:05,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:24:05,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:24:09,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-24 15:24:09,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 742 transitions, 6615 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:09,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:09,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-24 15:24:09,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:11,399 INFO L124 PetriNetUnfolderBase]: 1684/6158 cut-off events. [2024-10-24 15:24:11,399 INFO L125 PetriNetUnfolderBase]: For 26693/26994 co-relation queries the response was YES. [2024-10-24 15:24:11,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23685 conditions, 6158 events. 1684/6158 cut-off events. For 26693/26994 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 54271 event pairs, 224 based on Foata normal form. 95/6174 useless extension candidates. Maximal degree in co-relation 23539. Up to 1607 conditions per place. [2024-10-24 15:24:11,435 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 473 selfloop transitions, 163 changer transitions 7/893 dead transitions. [2024-10-24 15:24:11,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 893 transitions, 9498 flow [2024-10-24 15:24:11,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-24 15:24:11,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-10-24 15:24:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 5449 transitions. [2024-10-24 15:24:11,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201206327529305 [2024-10-24 15:24:11,440 INFO L175 Difference]: Start difference. First operand has 425 places, 742 transitions, 6615 flow. Second operand 29 states and 5449 transitions. [2024-10-24 15:24:11,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 893 transitions, 9498 flow [2024-10-24 15:24:11,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 893 transitions, 9415 flow, removed 19 selfloop flow, removed 18 redundant places. [2024-10-24 15:24:11,530 INFO L231 Difference]: Finished difference. Result has 440 places, 803 transitions, 8137 flow [2024-10-24 15:24:11,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=6534, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=8137, PETRI_PLACES=440, PETRI_TRANSITIONS=803} [2024-10-24 15:24:11,531 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 134 predicate places. [2024-10-24 15:24:11,531 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 803 transitions, 8137 flow [2024-10-24 15:24:11,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:11,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:11,533 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 15:24:11,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 15:24:11,533 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:24:11,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:11,534 INFO L85 PathProgramCache]: Analyzing trace with hash -969128125, now seen corresponding path program 4 times [2024-10-24 15:24:11,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:11,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205580541] [2024-10-24 15:24:11,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:11,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:12,675 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 15:24:12,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:12,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205580541] [2024-10-24 15:24:12,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205580541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:12,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:12,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 15:24:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651312154] [2024-10-24 15:24:12,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:12,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:24:12,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:12,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:24:12,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:24:16,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-24 15:24:16,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 803 transitions, 8137 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:16,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:16,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-24 15:24:16,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:18,192 INFO L124 PetriNetUnfolderBase]: 1926/6932 cut-off events. [2024-10-24 15:24:18,192 INFO L125 PetriNetUnfolderBase]: For 39482/39847 co-relation queries the response was YES. [2024-10-24 15:24:18,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28194 conditions, 6932 events. 1926/6932 cut-off events. For 39482/39847 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 63280 event pairs, 249 based on Foata normal form. 86/6930 useless extension candidates. Maximal degree in co-relation 28042. Up to 1554 conditions per place. [2024-10-24 15:24:18,250 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 527 selfloop transitions, 211 changer transitions 7/995 dead transitions. [2024-10-24 15:24:18,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 995 transitions, 12036 flow [2024-10-24 15:24:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 15:24:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-24 15:24:18,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5828 transitions. [2024-10-24 15:24:18,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204620462046204 [2024-10-24 15:24:18,255 INFO L175 Difference]: Start difference. First operand has 440 places, 803 transitions, 8137 flow. Second operand 31 states and 5828 transitions. [2024-10-24 15:24:18,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 995 transitions, 12036 flow [2024-10-24 15:24:18,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 995 transitions, 11939 flow, removed 10 selfloop flow, removed 21 redundant places. [2024-10-24 15:24:18,374 INFO L231 Difference]: Finished difference. Result has 459 places, 882 transitions, 10307 flow [2024-10-24 15:24:18,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=8050, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=10307, PETRI_PLACES=459, PETRI_TRANSITIONS=882} [2024-10-24 15:24:18,375 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 153 predicate places. [2024-10-24 15:24:18,375 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 882 transitions, 10307 flow [2024-10-24 15:24:18,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:18,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:18,376 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 15:24:18,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 15:24:18,376 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:24:18,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:18,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1080978813, now seen corresponding path program 5 times [2024-10-24 15:24:18,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:18,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500465229] [2024-10-24 15:24:18,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:18,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:19,477 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 15:24:19,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:19,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500465229] [2024-10-24 15:24:19,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500465229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:19,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:19,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 15:24:19,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569793638] [2024-10-24 15:24:19,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:19,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:24:19,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:19,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:24:19,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:24:23,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-24 15:24:23,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 882 transitions, 10307 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:23,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:23,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-24 15:24:23,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:25,877 INFO L124 PetriNetUnfolderBase]: 2128/7657 cut-off events. [2024-10-24 15:24:25,878 INFO L125 PetriNetUnfolderBase]: For 56099/56535 co-relation queries the response was YES. [2024-10-24 15:24:25,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32696 conditions, 7657 events. 2128/7657 cut-off events. For 56099/56535 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 72274 event pairs, 272 based on Foata normal form. 108/7668 useless extension candidates. Maximal degree in co-relation 32533. Up to 1886 conditions per place. [2024-10-24 15:24:25,943 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 538 selfloop transitions, 248 changer transitions 7/1043 dead transitions. [2024-10-24 15:24:25,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 1043 transitions, 14067 flow [2024-10-24 15:24:25,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:24:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:24:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5639 transitions. [2024-10-24 15:24:25,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6203520352035203 [2024-10-24 15:24:25,948 INFO L175 Difference]: Start difference. First operand has 459 places, 882 transitions, 10307 flow. Second operand 30 states and 5639 transitions. [2024-10-24 15:24:25,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 1043 transitions, 14067 flow [2024-10-24 15:24:26,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1043 transitions, 13944 flow, removed 38 selfloop flow, removed 18 redundant places. [2024-10-24 15:24:26,135 INFO L231 Difference]: Finished difference. Result has 478 places, 941 transitions, 12461 flow [2024-10-24 15:24:26,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=10184, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=882, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=12461, PETRI_PLACES=478, PETRI_TRANSITIONS=941} [2024-10-24 15:24:26,136 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 172 predicate places. [2024-10-24 15:24:26,137 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 941 transitions, 12461 flow [2024-10-24 15:24:26,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 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 15:24:26,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:26,138 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] [2024-10-24 15:24:26,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 15:24:26,138 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:24:26,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:26,138 INFO L85 PathProgramCache]: Analyzing trace with hash -843616089, now seen corresponding path program 1 times [2024-10-24 15:24:26,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:26,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451386055] [2024-10-24 15:24:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:26,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:27,169 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 15:24:27,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:27,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451386055] [2024-10-24 15:24:27,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451386055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:27,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:27,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-24 15:24:27,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364280221] [2024-10-24 15:24:27,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:27,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 15:24:27,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:27,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 15:24:27,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2024-10-24 15:24:30,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 303 [2024-10-24 15:24:30,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 941 transitions, 12461 flow. Second operand has 25 states, 25 states have (on average 183.36) internal successors, (4584), 25 states have internal predecessors, (4584), 0 states have call successors, (0), 0 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 15:24:30,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:30,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 303 [2024-10-24 15:24:30,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:32,975 INFO L124 PetriNetUnfolderBase]: 2187/7786 cut-off events. [2024-10-24 15:24:32,976 INFO L125 PetriNetUnfolderBase]: For 71411/71844 co-relation queries the response was YES. [2024-10-24 15:24:33,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34817 conditions, 7786 events. 2187/7786 cut-off events. For 71411/71844 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 73476 event pairs, 311 based on Foata normal form. 111/7801 useless extension candidates. Maximal degree in co-relation 34645. Up to 1183 conditions per place. [2024-10-24 15:24:33,035 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 620 selfloop transitions, 247 changer transitions 12/1125 dead transitions. [2024-10-24 15:24:33,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1125 transitions, 16118 flow [2024-10-24 15:24:33,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-24 15:24:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2024-10-24 15:24:33,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7616 transitions. [2024-10-24 15:24:33,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6130564275939789 [2024-10-24 15:24:33,040 INFO L175 Difference]: Start difference. First operand has 478 places, 941 transitions, 12461 flow. Second operand 41 states and 7616 transitions. [2024-10-24 15:24:33,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1125 transitions, 16118 flow [2024-10-24 15:24:33,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1125 transitions, 15984 flow, removed 40 selfloop flow, removed 19 redundant places. [2024-10-24 15:24:33,239 INFO L231 Difference]: Finished difference. Result has 502 places, 961 transitions, 13455 flow [2024-10-24 15:24:33,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=12327, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=13455, PETRI_PLACES=502, PETRI_TRANSITIONS=961} [2024-10-24 15:24:33,240 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 196 predicate places. [2024-10-24 15:24:33,240 INFO L471 AbstractCegarLoop]: Abstraction has has 502 places, 961 transitions, 13455 flow [2024-10-24 15:24:33,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 183.36) internal successors, (4584), 25 states have internal predecessors, (4584), 0 states have call successors, (0), 0 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 15:24:33,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:33,241 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] [2024-10-24 15:24:33,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 15:24:33,241 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:24:33,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1662500267, now seen corresponding path program 2 times [2024-10-24 15:24:33,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106670485] [2024-10-24 15:24:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:34,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:34,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106670485] [2024-10-24 15:24:34,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106670485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:34,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:34,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 15:24:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127221119] [2024-10-24 15:24:34,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:34,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:24:34,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:34,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:24:34,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:24:37,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-24 15:24:37,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 961 transitions, 13455 flow. Second operand has 23 states, 23 states have (on average 185.65217391304347) internal successors, (4270), 23 states have internal predecessors, (4270), 0 states have call successors, (0), 0 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 15:24:37,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:37,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-24 15:24:37,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:39,937 INFO L124 PetriNetUnfolderBase]: 2185/7784 cut-off events. [2024-10-24 15:24:39,937 INFO L125 PetriNetUnfolderBase]: For 81186/81622 co-relation queries the response was YES. [2024-10-24 15:24:39,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36073 conditions, 7784 events. 2185/7784 cut-off events. For 81186/81622 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 73609 event pairs, 293 based on Foata normal form. 89/7777 useless extension candidates. Maximal degree in co-relation 35897. Up to 1207 conditions per place. [2024-10-24 15:24:39,991 INFO L140 encePairwiseOnDemand]: 265/303 looper letters, 560 selfloop transitions, 242 changer transitions 8/1060 dead transitions. [2024-10-24 15:24:39,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 1060 transitions, 16056 flow [2024-10-24 15:24:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-24 15:24:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-24 15:24:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 6561 transitions. [2024-10-24 15:24:39,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6186704384724186 [2024-10-24 15:24:39,995 INFO L175 Difference]: Start difference. First operand has 502 places, 961 transitions, 13455 flow. Second operand 35 states and 6561 transitions. [2024-10-24 15:24:39,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 1060 transitions, 16056 flow [2024-10-24 15:24:40,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 1060 transitions, 15734 flow, removed 29 selfloop flow, removed 34 redundant places. [2024-10-24 15:24:40,221 INFO L231 Difference]: Finished difference. Result has 506 places, 973 transitions, 14137 flow [2024-10-24 15:24:40,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13133, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=719, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=14137, PETRI_PLACES=506, PETRI_TRANSITIONS=973} [2024-10-24 15:24:40,222 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 200 predicate places. [2024-10-24 15:24:40,222 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 973 transitions, 14137 flow [2024-10-24 15:24:40,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.65217391304347) internal successors, (4270), 23 states have internal predecessors, (4270), 0 states have call successors, (0), 0 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 15:24:40,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:40,223 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] [2024-10-24 15:24:40,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 15:24:40,223 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:24:40,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:40,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1342651945, now seen corresponding path program 3 times [2024-10-24 15:24:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:40,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072031334] [2024-10-24 15:24:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:40,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:41,517 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 15:24:41,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:41,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072031334] [2024-10-24 15:24:41,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072031334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:41,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:41,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-24 15:24:41,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350123300] [2024-10-24 15:24:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:41,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 15:24:41,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 15:24:41,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-10-24 15:24:44,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 303 [2024-10-24 15:24:44,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 973 transitions, 14137 flow. Second operand has 25 states, 25 states have (on average 183.4) internal successors, (4585), 25 states have internal predecessors, (4585), 0 states have call successors, (0), 0 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 15:24:44,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:44,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 303 [2024-10-24 15:24:44,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:47,610 INFO L124 PetriNetUnfolderBase]: 2219/7774 cut-off events. [2024-10-24 15:24:47,610 INFO L125 PetriNetUnfolderBase]: For 93149/93570 co-relation queries the response was YES. [2024-10-24 15:24:47,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37172 conditions, 7774 events. 2219/7774 cut-off events. For 93149/93570 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 73212 event pairs, 232 based on Foata normal form. 128/7810 useless extension candidates. Maximal degree in co-relation 36991. Up to 1169 conditions per place. [2024-10-24 15:24:47,677 INFO L140 encePairwiseOnDemand]: 261/303 looper letters, 590 selfloop transitions, 329 changer transitions 18/1183 dead transitions. [2024-10-24 15:24:47,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1183 transitions, 17604 flow [2024-10-24 15:24:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-24 15:24:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-10-24 15:24:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 9121 transitions. [2024-10-24 15:24:47,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6143328618576144 [2024-10-24 15:24:47,682 INFO L175 Difference]: Start difference. First operand has 506 places, 973 transitions, 14137 flow. Second operand 49 states and 9121 transitions. [2024-10-24 15:24:47,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1183 transitions, 17604 flow [2024-10-24 15:24:47,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1183 transitions, 17174 flow, removed 34 selfloop flow, removed 31 redundant places. [2024-10-24 15:24:47,986 INFO L231 Difference]: Finished difference. Result has 532 places, 1005 transitions, 15050 flow [2024-10-24 15:24:47,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13728, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=668, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=15050, PETRI_PLACES=532, PETRI_TRANSITIONS=1005} [2024-10-24 15:24:47,987 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 226 predicate places. [2024-10-24 15:24:47,987 INFO L471 AbstractCegarLoop]: Abstraction has has 532 places, 1005 transitions, 15050 flow [2024-10-24 15:24:47,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 183.4) internal successors, (4585), 25 states have internal predecessors, (4585), 0 states have call successors, (0), 0 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 15:24:47,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:47,988 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] [2024-10-24 15:24:47,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 15:24:47,988 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-24 15:24:47,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash -605924877, now seen corresponding path program 1 times [2024-10-24 15:24:47,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:47,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030438617] [2024-10-24 15:24:47,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:47,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:49,374 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 15:24:49,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:49,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030438617] [2024-10-24 15:24:49,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030438617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:49,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:49,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-24 15:24:49,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520667907] [2024-10-24 15:24:49,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:49,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 15:24:49,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:49,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 15:24:49,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-10-24 15:24:53,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 303 [2024-10-24 15:24:53,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 1005 transitions, 15050 flow. Second operand has 25 states, 25 states have (on average 183.56) internal successors, (4589), 25 states have internal predecessors, (4589), 0 states have call successors, (0), 0 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 15:24:53,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:53,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 303 [2024-10-24 15:24:53,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand