./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:50:44,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:50:44,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:50:44,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:50:44,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:50:44,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:50:44,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:50:44,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:50:44,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:50:44,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:50:44,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:50:44,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:50:44,320 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:50:44,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:50:44,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:50:44,322 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:50:44,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:50:44,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:50:44,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:50:44,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:50:44,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:50:44,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:50:44,325 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:50:44,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:50:44,326 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:50:44,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:50:44,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:50:44,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:50:44,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:50:44,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:50:44,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:50:44,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:50:44,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:50:44,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:50:44,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:50:44,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:50:44,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:50:44,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:50:44,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:50:44,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:50:44,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:50:44,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-11-09 06:50:44,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:50:44,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:50:44,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:50:44,545 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:50:44,546 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:50:44,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-09 06:50:45,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:50:45,933 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:50:45,933 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-09 06:50:45,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f31b5ed/17566e47fad642898920815ee598638e/FLAG59cc5cce8 [2024-11-09 06:50:46,300 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f31b5ed/17566e47fad642898920815ee598638e [2024-11-09 06:50:46,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:50:46,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:50:46,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:50:46,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:50:46,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:50:46,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23430afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46, skipping insertion in model container [2024-11-09 06:50:46,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:50:46,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:50:46,708 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:50:46,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:50:46,793 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:50:46,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46 WrapperNode [2024-11-09 06:50:46,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:50:46,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:50:46,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:50:46,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:50:46,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,840 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2024-11-09 06:50:46,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:50:46,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:50:46,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:50:46,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:50:46,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:50:46,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:50:46,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:50:46,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:50:46,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (1/1) ... [2024-11-09 06:50:46,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:50:46,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:50:46,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:50:46,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:50:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:50:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:50:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:50:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:50:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:50:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:50:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:50:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:50:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:50:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:50:46,942 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:50:47,050 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:50:47,052 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:50:47,236 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:50:47,237 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:50:47,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:50:47,261 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:50:47,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:47 BoogieIcfgContainer [2024-11-09 06:50:47,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:50:47,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:50:47,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:50:47,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:50:47,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:50:46" (1/3) ... [2024-11-09 06:50:47,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f6230e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:50:47, skipping insertion in model container [2024-11-09 06:50:47,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:46" (2/3) ... [2024-11-09 06:50:47,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f6230e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:50:47, skipping insertion in model container [2024-11-09 06:50:47,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:47" (3/3) ... [2024-11-09 06:50:47,268 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-11-09 06:50:47,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:50:47,282 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 06:50:47,282 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:50:47,337 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:50:47,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2024-11-09 06:50:47,395 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2024-11-09 06:50:47,396 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:50:47,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-09 06:50:47,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2024-11-09 06:50:47,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2024-11-09 06:50:47,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:50:47,416 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;@50f3aa9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:50:47,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 06:50:47,428 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:50:47,428 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-11-09 06:50:47,428 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:50:47,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:47,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:47,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:47,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:47,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1709663426, now seen corresponding path program 1 times [2024-11-09 06:50:47,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:47,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816161949] [2024-11-09 06:50:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:47,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:48,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:48,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:48,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816161949] [2024-11-09 06:50:48,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816161949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:48,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:48,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:50:48,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273494424] [2024-11-09 06:50:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:48,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:50:48,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:48,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:50:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:50:48,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-09 06:50:48,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:48,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:48,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-09 06:50:48,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:48,489 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2024-11-09 06:50:48,489 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:50:48,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2451 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2024-11-09 06:50:48,497 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2024-11-09 06:50:48,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2024-11-09 06:50:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:50:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:50:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-09 06:50:48,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-09 06:50:48,516 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2024-11-09 06:50:48,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2024-11-09 06:50:48,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:50:48,523 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2024-11-09 06:50:48,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2024-11-09 06:50:48,528 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-11-09 06:50:48,528 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2024-11-09 06:50:48,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:48,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:48,529 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] [2024-11-09 06:50:48,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:50:48,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:48,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:48,530 INFO L85 PathProgramCache]: Analyzing trace with hash 914001375, now seen corresponding path program 1 times [2024-11-09 06:50:48,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:48,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631815659] [2024-11-09 06:50:48,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:48,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:48,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:48,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631815659] [2024-11-09 06:50:48,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631815659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:48,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:48,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:50:48,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445307381] [2024-11-09 06:50:48,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:48,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:50:48,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:48,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:50:48,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:50:48,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-09 06:50:48,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:48,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:48,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-09 06:50:48,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:49,016 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2024-11-09 06:50:49,017 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2024-11-09 06:50:49,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 136/155 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3336 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2024-11-09 06:50:49,023 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2024-11-09 06:50:49,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2024-11-09 06:50:49,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:50:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:50:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-09 06:50:49,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-09 06:50:49,027 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2024-11-09 06:50:49,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2024-11-09 06:50:49,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:50:49,034 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2024-11-09 06:50:49,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2024-11-09 06:50:49,035 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2024-11-09 06:50:49,036 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2024-11-09 06:50:49,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:49,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:49,036 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:49,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:50:49,037 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:49,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:49,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1024991904, now seen corresponding path program 1 times [2024-11-09 06:50:49,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:49,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603010478] [2024-11-09 06:50:49,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:49,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:49,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603010478] [2024-11-09 06:50:49,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603010478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:49,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:49,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:50:49,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323978753] [2024-11-09 06:50:49,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:49,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:50:49,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:49,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:50:49,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:50:49,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-09 06:50:49,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:49,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:49,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-09 06:50:49,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:49,542 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2024-11-09 06:50:49,542 INFO L125 PetriNetUnfolderBase]: For 589/609 co-relation queries the response was YES. [2024-11-09 06:50:49,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 589/609 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5761 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2024-11-09 06:50:49,547 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2024-11-09 06:50:49,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2024-11-09 06:50:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:50:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:50:49,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-09 06:50:49,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-09 06:50:49,549 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2024-11-09 06:50:49,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2024-11-09 06:50:49,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:50:49,554 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2024-11-09 06:50:49,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2024-11-09 06:50:49,555 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2024-11-09 06:50:49,555 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2024-11-09 06:50:49,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:49,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:49,556 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] [2024-11-09 06:50:49,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:50:49,556 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:49,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:49,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1016274529, now seen corresponding path program 1 times [2024-11-09 06:50:49,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:49,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605447676] [2024-11-09 06:50:49,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:49,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:49,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:49,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605447676] [2024-11-09 06:50:49,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605447676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:49,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:49,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:50:49,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684774104] [2024-11-09 06:50:49,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:49,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:50:49,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:49,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:50:49,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:50:49,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-09 06:50:49,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:49,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:49,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-09 06:50:49,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:50,038 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2024-11-09 06:50:50,038 INFO L125 PetriNetUnfolderBase]: For 1618/1665 co-relation queries the response was YES. [2024-11-09 06:50:50,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1618/1665 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7721 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2024-11-09 06:50:50,048 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2024-11-09 06:50:50,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2024-11-09 06:50:50,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:50:50,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:50:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-09 06:50:50,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-09 06:50:50,050 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2024-11-09 06:50:50,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2024-11-09 06:50:50,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-09 06:50:50,063 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2024-11-09 06:50:50,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2024-11-09 06:50:50,064 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2024-11-09 06:50:50,065 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2024-11-09 06:50:50,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:50,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:50,065 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:50,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:50:50,066 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:50,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:50,066 INFO L85 PathProgramCache]: Analyzing trace with hash -121785405, now seen corresponding path program 1 times [2024-11-09 06:50:50,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:50,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633559297] [2024-11-09 06:50:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:50,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:50,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:50,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633559297] [2024-11-09 06:50:50,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633559297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:50,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:50,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:50:50,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068836547] [2024-11-09 06:50:50,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:50,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:50:50,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:50,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:50:50,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:50:50,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:50:50,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:50,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:50,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:50:50,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:51,595 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2024-11-09 06:50:51,596 INFO L125 PetriNetUnfolderBase]: For 4918/5024 co-relation queries the response was YES. [2024-11-09 06:50:51,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 4918/5024 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16801 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2024-11-09 06:50:51,608 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2024-11-09 06:50:51,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2024-11-09 06:50:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:50:51,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:50:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2024-11-09 06:50:51,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2024-11-09 06:50:51,612 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2024-11-09 06:50:51,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2024-11-09 06:50:51,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2024-11-09 06:50:51,636 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2024-11-09 06:50:51,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2024-11-09 06:50:51,637 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2024-11-09 06:50:51,637 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2024-11-09 06:50:51,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:51,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:51,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:51,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:50:51,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:51,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:51,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1013121371, now seen corresponding path program 2 times [2024-11-09 06:50:51,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:51,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65763111] [2024-11-09 06:50:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:51,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:52,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:52,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65763111] [2024-11-09 06:50:52,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65763111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:52,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:52,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:50:52,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26516046] [2024-11-09 06:50:52,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:52,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:50:52,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:52,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:50:52,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:50:52,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:50:52,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:52,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:52,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:50:52,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:53,262 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2024-11-09 06:50:53,262 INFO L125 PetriNetUnfolderBase]: For 11776/12020 co-relation queries the response was YES. [2024-11-09 06:50:53,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11776/12020 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28071 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2024-11-09 06:50:53,283 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2024-11-09 06:50:53,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2024-11-09 06:50:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:50:53,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 06:50:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2024-11-09 06:50:53,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2024-11-09 06:50:53,286 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2024-11-09 06:50:53,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2024-11-09 06:50:53,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-09 06:50:53,327 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2024-11-09 06:50:53,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2024-11-09 06:50:53,328 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2024-11-09 06:50:53,328 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2024-11-09 06:50:53,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:53,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:53,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:53,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:50:53,329 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:53,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:53,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1422582121, now seen corresponding path program 3 times [2024-11-09 06:50:53,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:53,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809472126] [2024-11-09 06:50:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:53,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:53,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:53,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:53,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809472126] [2024-11-09 06:50:53,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809472126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:53,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:53,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:50:53,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716794242] [2024-11-09 06:50:53,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:53,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:50:53,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:53,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:50:53,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:50:54,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:50:54,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:54,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:54,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:50:54,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:54,882 INFO L124 PetriNetUnfolderBase]: 1248/3486 cut-off events. [2024-11-09 06:50:54,882 INFO L125 PetriNetUnfolderBase]: For 17161/17542 co-relation queries the response was YES. [2024-11-09 06:50:54,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 3486 events. 1248/3486 cut-off events. For 17161/17542 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28180 event pairs, 78 based on Foata normal form. 128/3582 useless extension candidates. Maximal degree in co-relation 14665. Up to 1525 conditions per place. [2024-11-09 06:50:54,906 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2024-11-09 06:50:54,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2024-11-09 06:50:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:50:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 06:50:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2024-11-09 06:50:54,909 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2024-11-09 06:50:54,910 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2024-11-09 06:50:54,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2024-11-09 06:50:54,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-09 06:50:54,974 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2024-11-09 06:50:54,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2024-11-09 06:50:54,975 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2024-11-09 06:50:54,976 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2024-11-09 06:50:54,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:54,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:54,977 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:54,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:50:54,978 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:54,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash -746214381, now seen corresponding path program 4 times [2024-11-09 06:50:54,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:54,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176085375] [2024-11-09 06:50:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:54,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:55,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:55,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:55,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176085375] [2024-11-09 06:50:55,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176085375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:55,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:55,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:50:55,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586646307] [2024-11-09 06:50:55,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:55,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:50:55,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:55,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:50:55,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:50:55,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:50:55,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:55,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:55,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:50:55,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:56,796 INFO L124 PetriNetUnfolderBase]: 1570/4367 cut-off events. [2024-11-09 06:50:56,796 INFO L125 PetriNetUnfolderBase]: For 27039/27493 co-relation queries the response was YES. [2024-11-09 06:50:56,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 4367 events. 1570/4367 cut-off events. For 27039/27493 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 37130 event pairs, 137 based on Foata normal form. 155/4489 useless extension candidates. Maximal degree in co-relation 19425. Up to 812 conditions per place. [2024-11-09 06:50:56,825 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2024-11-09 06:50:56,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2024-11-09 06:50:56,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:50:56,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 06:50:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2024-11-09 06:50:56,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2024-11-09 06:50:56,828 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2024-11-09 06:50:56,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2024-11-09 06:50:56,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-09 06:50:56,903 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2024-11-09 06:50:56,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2024-11-09 06:50:56,904 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2024-11-09 06:50:56,905 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2024-11-09 06:50:56,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:56,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:56,905 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:56,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:50:56,906 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:56,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:56,906 INFO L85 PathProgramCache]: Analyzing trace with hash -190314597, now seen corresponding path program 5 times [2024-11-09 06:50:56,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:56,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487272736] [2024-11-09 06:50:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:56,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:57,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487272736] [2024-11-09 06:50:57,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487272736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:57,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:57,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:50:57,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139165945] [2024-11-09 06:50:57,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:57,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:50:57,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:57,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:50:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:50:57,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:50:57,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:57,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:57,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:50:57,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:59,072 INFO L124 PetriNetUnfolderBase]: 2099/5778 cut-off events. [2024-11-09 06:50:59,072 INFO L125 PetriNetUnfolderBase]: For 47578/48321 co-relation queries the response was YES. [2024-11-09 06:50:59,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 5778 events. 2099/5778 cut-off events. For 47578/48321 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52069 event pairs, 153 based on Foata normal form. 176/5910 useless extension candidates. Maximal degree in co-relation 27323. Up to 2201 conditions per place. [2024-11-09 06:50:59,118 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 426 selfloop transitions, 221 changer transitions 21/750 dead transitions. [2024-11-09 06:50:59,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 750 transitions, 11340 flow [2024-11-09 06:50:59,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:50:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 06:50:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2024-11-09 06:50:59,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2024-11-09 06:50:59,126 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 14 states and 1007 transitions. [2024-11-09 06:50:59,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 750 transitions, 11340 flow [2024-11-09 06:50:59,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 750 transitions, 10974 flow, removed 81 selfloop flow, removed 7 redundant places. [2024-11-09 06:50:59,312 INFO L231 Difference]: Finished difference. Result has 217 places, 543 transitions, 8635 flow [2024-11-09 06:50:59,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8635, PETRI_PLACES=217, PETRI_TRANSITIONS=543} [2024-11-09 06:50:59,313 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 125 predicate places. [2024-11-09 06:50:59,314 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 543 transitions, 8635 flow [2024-11-09 06:50:59,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:59,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:59,314 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:59,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:50:59,314 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:50:59,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:59,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1542519371, now seen corresponding path program 1 times [2024-11-09 06:50:59,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:59,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782968502] [2024-11-09 06:50:59,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:59,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:59,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782968502] [2024-11-09 06:50:59,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782968502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:59,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:59,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:50:59,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172217550] [2024-11-09 06:50:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:59,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:50:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:50:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:50:59,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:50:59,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 543 transitions, 8635 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:59,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:59,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:50:59,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:01,223 INFO L124 PetriNetUnfolderBase]: 2618/6770 cut-off events. [2024-11-09 06:51:01,223 INFO L125 PetriNetUnfolderBase]: For 62107/62540 co-relation queries the response was YES. [2024-11-09 06:51:01,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34060 conditions, 6770 events. 2618/6770 cut-off events. For 62107/62540 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 60046 event pairs, 434 based on Foata normal form. 71/6787 useless extension candidates. Maximal degree in co-relation 33961. Up to 2208 conditions per place. [2024-11-09 06:51:01,275 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 610 selfloop transitions, 150 changer transitions 68/901 dead transitions. [2024-11-09 06:51:01,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 901 transitions, 13782 flow [2024-11-09 06:51:01,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:51:01,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 06:51:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2024-11-09 06:51:01,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2024-11-09 06:51:01,282 INFO L175 Difference]: Start difference. First operand has 217 places, 543 transitions, 8635 flow. Second operand 14 states and 995 transitions. [2024-11-09 06:51:01,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 901 transitions, 13782 flow [2024-11-09 06:51:01,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 901 transitions, 13437 flow, removed 93 selfloop flow, removed 5 redundant places. [2024-11-09 06:51:01,534 INFO L231 Difference]: Finished difference. Result has 233 places, 614 transitions, 9881 flow [2024-11-09 06:51:01,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=8365, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9881, PETRI_PLACES=233, PETRI_TRANSITIONS=614} [2024-11-09 06:51:01,534 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 141 predicate places. [2024-11-09 06:51:01,535 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 614 transitions, 9881 flow [2024-11-09 06:51:01,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:01,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:01,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:01,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:51:01,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:01,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash -339106291, now seen corresponding path program 6 times [2024-11-09 06:51:01,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:01,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473590797] [2024-11-09 06:51:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:01,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:01,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:01,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:01,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473590797] [2024-11-09 06:51:01,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473590797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:01,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:01,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:01,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657220456] [2024-11-09 06:51:01,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:01,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:01,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:01,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:02,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:02,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 614 transitions, 9881 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:02,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:02,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:02,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:03,525 INFO L124 PetriNetUnfolderBase]: 2379/6638 cut-off events. [2024-11-09 06:51:03,526 INFO L125 PetriNetUnfolderBase]: For 66231/67082 co-relation queries the response was YES. [2024-11-09 06:51:03,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34152 conditions, 6638 events. 2379/6638 cut-off events. For 66231/67082 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 62069 event pairs, 258 based on Foata normal form. 203/6801 useless extension candidates. Maximal degree in co-relation 34046. Up to 1769 conditions per place. [2024-11-09 06:51:03,579 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 579 selfloop transitions, 231 changer transitions 19/917 dead transitions. [2024-11-09 06:51:03,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 917 transitions, 14931 flow [2024-11-09 06:51:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2024-11-09 06:51:03,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7617021276595745 [2024-11-09 06:51:03,581 INFO L175 Difference]: Start difference. First operand has 233 places, 614 transitions, 9881 flow. Second operand 15 states and 1074 transitions. [2024-11-09 06:51:03,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 917 transitions, 14931 flow [2024-11-09 06:51:03,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 917 transitions, 14807 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-09 06:51:03,891 INFO L231 Difference]: Finished difference. Result has 254 places, 675 transitions, 11914 flow [2024-11-09 06:51:03,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=9783, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11914, PETRI_PLACES=254, PETRI_TRANSITIONS=675} [2024-11-09 06:51:03,891 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 162 predicate places. [2024-11-09 06:51:03,892 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 675 transitions, 11914 flow [2024-11-09 06:51:03,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:03,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:03,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:03,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:51:03,892 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:03,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1534148209, now seen corresponding path program 7 times [2024-11-09 06:51:03,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:03,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878243409] [2024-11-09 06:51:03,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:03,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:04,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:04,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878243409] [2024-11-09 06:51:04,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878243409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:04,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:04,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:04,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248057927] [2024-11-09 06:51:04,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:04,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:04,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:04,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:04,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:04,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:04,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 675 transitions, 11914 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:04,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:04,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:04,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:06,190 INFO L124 PetriNetUnfolderBase]: 2422/6709 cut-off events. [2024-11-09 06:51:06,190 INFO L125 PetriNetUnfolderBase]: For 84482/85591 co-relation queries the response was YES. [2024-11-09 06:51:06,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36397 conditions, 6709 events. 2422/6709 cut-off events. For 84482/85591 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 62627 event pairs, 263 based on Foata normal form. 239/6909 useless extension candidates. Maximal degree in co-relation 36280. Up to 2017 conditions per place. [2024-11-09 06:51:06,338 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 616 selfloop transitions, 225 changer transitions 18/947 dead transitions. [2024-11-09 06:51:06,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 947 transitions, 16614 flow [2024-11-09 06:51:06,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:06,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1078 transitions. [2024-11-09 06:51:06,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2024-11-09 06:51:06,342 INFO L175 Difference]: Start difference. First operand has 254 places, 675 transitions, 11914 flow. Second operand 15 states and 1078 transitions. [2024-11-09 06:51:06,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 947 transitions, 16614 flow [2024-11-09 06:51:06,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 947 transitions, 16252 flow, removed 133 selfloop flow, removed 5 redundant places. [2024-11-09 06:51:06,700 INFO L231 Difference]: Finished difference. Result has 271 places, 701 transitions, 12705 flow [2024-11-09 06:51:06,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11583, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12705, PETRI_PLACES=271, PETRI_TRANSITIONS=701} [2024-11-09 06:51:06,701 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 179 predicate places. [2024-11-09 06:51:06,701 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 701 transitions, 12705 flow [2024-11-09 06:51:06,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:06,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:06,702 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:06,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:51:06,702 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:06,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1310405227, now seen corresponding path program 2 times [2024-11-09 06:51:06,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:06,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764483890] [2024-11-09 06:51:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:06,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:06,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:06,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764483890] [2024-11-09 06:51:06,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764483890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:06,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:06,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:06,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752821863] [2024-11-09 06:51:06,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:06,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:06,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:06,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:06,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:07,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:51:07,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 701 transitions, 12705 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:07,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:07,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:51:07,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:09,167 INFO L124 PetriNetUnfolderBase]: 3090/8007 cut-off events. [2024-11-09 06:51:09,167 INFO L125 PetriNetUnfolderBase]: For 101097/101615 co-relation queries the response was YES. [2024-11-09 06:51:09,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44802 conditions, 8007 events. 3090/8007 cut-off events. For 101097/101615 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 73558 event pairs, 555 based on Foata normal form. 106/8050 useless extension candidates. Maximal degree in co-relation 44679. Up to 2897 conditions per place. [2024-11-09 06:51:09,238 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 687 selfloop transitions, 186 changer transitions 53/1003 dead transitions. [2024-11-09 06:51:09,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1003 transitions, 17473 flow [2024-11-09 06:51:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2024-11-09 06:51:09,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7460992907801418 [2024-11-09 06:51:09,240 INFO L175 Difference]: Start difference. First operand has 271 places, 701 transitions, 12705 flow. Second operand 15 states and 1052 transitions. [2024-11-09 06:51:09,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1003 transitions, 17473 flow [2024-11-09 06:51:09,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1003 transitions, 16859 flow, removed 97 selfloop flow, removed 11 redundant places. [2024-11-09 06:51:09,725 INFO L231 Difference]: Finished difference. Result has 280 places, 720 transitions, 13017 flow [2024-11-09 06:51:09,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12140, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=701, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13017, PETRI_PLACES=280, PETRI_TRANSITIONS=720} [2024-11-09 06:51:09,726 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 188 predicate places. [2024-11-09 06:51:09,726 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 720 transitions, 13017 flow [2024-11-09 06:51:09,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:09,727 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:09,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:51:09,727 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:09,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:09,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1108754079, now seen corresponding path program 3 times [2024-11-09 06:51:09,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:09,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932073242] [2024-11-09 06:51:09,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:09,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:09,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:09,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:09,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932073242] [2024-11-09 06:51:09,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932073242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:09,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:09,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:09,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082714487] [2024-11-09 06:51:09,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:09,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:09,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:09,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:09,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:10,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:51:10,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 720 transitions, 13017 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:10,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:10,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:51:10,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:12,215 INFO L124 PetriNetUnfolderBase]: 3148/8156 cut-off events. [2024-11-09 06:51:12,216 INFO L125 PetriNetUnfolderBase]: For 102377/102873 co-relation queries the response was YES. [2024-11-09 06:51:12,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46963 conditions, 8156 events. 3148/8156 cut-off events. For 102377/102873 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 75166 event pairs, 483 based on Foata normal form. 102/8200 useless extension candidates. Maximal degree in co-relation 46837. Up to 2896 conditions per place. [2024-11-09 06:51:12,281 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 928 selfloop transitions, 137 changer transitions 41/1183 dead transitions. [2024-11-09 06:51:12,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1183 transitions, 20257 flow [2024-11-09 06:51:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2024-11-09 06:51:12,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7510638297872341 [2024-11-09 06:51:12,283 INFO L175 Difference]: Start difference. First operand has 280 places, 720 transitions, 13017 flow. Second operand 15 states and 1059 transitions. [2024-11-09 06:51:12,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1183 transitions, 20257 flow [2024-11-09 06:51:12,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1183 transitions, 19979 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-09 06:51:12,865 INFO L231 Difference]: Finished difference. Result has 292 places, 779 transitions, 14269 flow [2024-11-09 06:51:12,865 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12803, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=720, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14269, PETRI_PLACES=292, PETRI_TRANSITIONS=779} [2024-11-09 06:51:12,865 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 200 predicate places. [2024-11-09 06:51:12,866 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 779 transitions, 14269 flow [2024-11-09 06:51:12,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:12,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:12,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:12,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:51:12,866 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:12,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:12,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1662952885, now seen corresponding path program 4 times [2024-11-09 06:51:12,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:12,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062152077] [2024-11-09 06:51:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:12,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:13,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:13,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062152077] [2024-11-09 06:51:13,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062152077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:13,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:13,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:13,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775627780] [2024-11-09 06:51:13,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:13,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:13,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:13,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:13,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:13,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:51:13,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 779 transitions, 14269 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:13,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:13,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:51:13,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:15,680 INFO L124 PetriNetUnfolderBase]: 3204/8341 cut-off events. [2024-11-09 06:51:15,680 INFO L125 PetriNetUnfolderBase]: For 112222/112720 co-relation queries the response was YES. [2024-11-09 06:51:15,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49536 conditions, 8341 events. 3204/8341 cut-off events. For 112222/112720 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 77396 event pairs, 552 based on Foata normal form. 111/8390 useless extension candidates. Maximal degree in co-relation 49403. Up to 2899 conditions per place. [2024-11-09 06:51:15,748 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 768 selfloop transitions, 230 changer transitions 38/1113 dead transitions. [2024-11-09 06:51:15,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1113 transitions, 20011 flow [2024-11-09 06:51:15,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:15,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-09 06:51:15,750 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-09 06:51:15,750 INFO L175 Difference]: Start difference. First operand has 292 places, 779 transitions, 14269 flow. Second operand 15 states and 1054 transitions. [2024-11-09 06:51:15,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1113 transitions, 20011 flow [2024-11-09 06:51:16,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1113 transitions, 19760 flow, removed 58 selfloop flow, removed 9 redundant places. [2024-11-09 06:51:16,431 INFO L231 Difference]: Finished difference. Result has 304 places, 818 transitions, 15598 flow [2024-11-09 06:51:16,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14079, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=779, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15598, PETRI_PLACES=304, PETRI_TRANSITIONS=818} [2024-11-09 06:51:16,432 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 212 predicate places. [2024-11-09 06:51:16,432 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 818 transitions, 15598 flow [2024-11-09 06:51:16,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:16,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:16,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:16,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:51:16,433 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:16,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:16,433 INFO L85 PathProgramCache]: Analyzing trace with hash -295726675, now seen corresponding path program 1 times [2024-11-09 06:51:16,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:16,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233587142] [2024-11-09 06:51:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:16,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:16,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:16,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233587142] [2024-11-09 06:51:16,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233587142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:16,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:16,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:16,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486446246] [2024-11-09 06:51:16,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:16,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:16,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:16,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:16,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:17,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:17,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 818 transitions, 15598 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:17,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:17,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:17,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:19,514 INFO L124 PetriNetUnfolderBase]: 2720/7552 cut-off events. [2024-11-09 06:51:19,514 INFO L125 PetriNetUnfolderBase]: For 114613/115536 co-relation queries the response was YES. [2024-11-09 06:51:19,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44743 conditions, 7552 events. 2720/7552 cut-off events. For 114613/115536 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 71959 event pairs, 264 based on Foata normal form. 173/7677 useless extension candidates. Maximal degree in co-relation 44605. Up to 1988 conditions per place. [2024-11-09 06:51:19,596 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 669 selfloop transitions, 186 changer transitions 25/1161 dead transitions. [2024-11-09 06:51:19,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1161 transitions, 21156 flow [2024-11-09 06:51:19,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:19,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-09 06:51:19,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-09 06:51:19,597 INFO L175 Difference]: Start difference. First operand has 304 places, 818 transitions, 15598 flow. Second operand 15 states and 1099 transitions. [2024-11-09 06:51:19,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1161 transitions, 21156 flow [2024-11-09 06:51:20,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1161 transitions, 20800 flow, removed 60 selfloop flow, removed 10 redundant places. [2024-11-09 06:51:20,224 INFO L231 Difference]: Finished difference. Result has 317 places, 926 transitions, 17720 flow [2024-11-09 06:51:20,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15264, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17720, PETRI_PLACES=317, PETRI_TRANSITIONS=926} [2024-11-09 06:51:20,224 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 225 predicate places. [2024-11-09 06:51:20,225 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 926 transitions, 17720 flow [2024-11-09 06:51:20,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:20,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:20,225 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] [2024-11-09 06:51:20,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:51:20,225 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:20,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:20,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1742526705, now seen corresponding path program 5 times [2024-11-09 06:51:20,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:20,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146465163] [2024-11-09 06:51:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:20,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:20,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:20,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:20,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146465163] [2024-11-09 06:51:20,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146465163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:20,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:20,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:20,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893662369] [2024-11-09 06:51:20,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:20,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:20,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:20,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:20,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:51:20,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 926 transitions, 17720 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:20,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:20,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:51:20,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:23,627 INFO L124 PetriNetUnfolderBase]: 3347/8760 cut-off events. [2024-11-09 06:51:23,627 INFO L125 PetriNetUnfolderBase]: For 130105/130659 co-relation queries the response was YES. [2024-11-09 06:51:23,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53891 conditions, 8760 events. 3347/8760 cut-off events. For 130105/130659 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 82351 event pairs, 602 based on Foata normal form. 123/8815 useless extension candidates. Maximal degree in co-relation 53746. Up to 2904 conditions per place. [2024-11-09 06:51:23,700 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 868 selfloop transitions, 260 changer transitions 36/1241 dead transitions. [2024-11-09 06:51:23,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1241 transitions, 23783 flow [2024-11-09 06:51:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:23,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-09 06:51:23,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-09 06:51:23,702 INFO L175 Difference]: Start difference. First operand has 317 places, 926 transitions, 17720 flow. Second operand 15 states and 1054 transitions. [2024-11-09 06:51:23,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1241 transitions, 23783 flow [2024-11-09 06:51:24,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1241 transitions, 23680 flow, removed 45 selfloop flow, removed 3 redundant places. [2024-11-09 06:51:24,509 INFO L231 Difference]: Finished difference. Result has 335 places, 968 transitions, 19219 flow [2024-11-09 06:51:24,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=17619, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19219, PETRI_PLACES=335, PETRI_TRANSITIONS=968} [2024-11-09 06:51:24,511 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 243 predicate places. [2024-11-09 06:51:24,511 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 968 transitions, 19219 flow [2024-11-09 06:51:24,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:24,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:24,512 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:24,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:51:24,512 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:24,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:24,512 INFO L85 PathProgramCache]: Analyzing trace with hash 658878385, now seen corresponding path program 2 times [2024-11-09 06:51:24,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:24,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359038444] [2024-11-09 06:51:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:24,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:24,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:24,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:24,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359038444] [2024-11-09 06:51:24,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359038444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:24,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:24,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:24,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847849912] [2024-11-09 06:51:24,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:24,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:24,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:25,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:25,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 968 transitions, 19219 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:25,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:25,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:25,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:27,533 INFO L124 PetriNetUnfolderBase]: 2702/7568 cut-off events. [2024-11-09 06:51:27,534 INFO L125 PetriNetUnfolderBase]: For 133549/134506 co-relation queries the response was YES. [2024-11-09 06:51:27,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47486 conditions, 7568 events. 2702/7568 cut-off events. For 133549/134506 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 72501 event pairs, 246 based on Foata normal form. 180/7704 useless extension candidates. Maximal degree in co-relation 47334. Up to 1992 conditions per place. [2024-11-09 06:51:27,623 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 763 selfloop transitions, 185 changer transitions 24/1259 dead transitions. [2024-11-09 06:51:27,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1259 transitions, 24163 flow [2024-11-09 06:51:27,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-09 06:51:27,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-09 06:51:27,625 INFO L175 Difference]: Start difference. First operand has 335 places, 968 transitions, 19219 flow. Second operand 15 states and 1099 transitions. [2024-11-09 06:51:27,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1259 transitions, 24163 flow [2024-11-09 06:51:28,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1259 transitions, 23869 flow, removed 79 selfloop flow, removed 8 redundant places. [2024-11-09 06:51:28,593 INFO L231 Difference]: Finished difference. Result has 349 places, 1000 transitions, 19975 flow [2024-11-09 06:51:28,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=18934, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19975, PETRI_PLACES=349, PETRI_TRANSITIONS=1000} [2024-11-09 06:51:28,594 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 257 predicate places. [2024-11-09 06:51:28,594 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 1000 transitions, 19975 flow [2024-11-09 06:51:28,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:28,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:28,595 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:28,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:51:28,595 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:28,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash 425477271, now seen corresponding path program 1 times [2024-11-09 06:51:28,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:28,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101678300] [2024-11-09 06:51:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:28,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:28,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:28,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101678300] [2024-11-09 06:51:28,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101678300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:28,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:28,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42649471] [2024-11-09 06:51:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:28,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:28,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:29,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:51:29,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1000 transitions, 19975 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:29,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:29,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:51:29,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:31,997 INFO L124 PetriNetUnfolderBase]: 3279/8595 cut-off events. [2024-11-09 06:51:31,997 INFO L125 PetriNetUnfolderBase]: For 151812/152426 co-relation queries the response was YES. [2024-11-09 06:51:32,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56210 conditions, 8595 events. 3279/8595 cut-off events. For 151812/152426 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 80524 event pairs, 575 based on Foata normal form. 93/8630 useless extension candidates. Maximal degree in co-relation 56051. Up to 2975 conditions per place. [2024-11-09 06:51:32,086 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1070 selfloop transitions, 162 changer transitions 69/1383 dead transitions. [2024-11-09 06:51:32,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1383 transitions, 27350 flow [2024-11-09 06:51:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:51:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 06:51:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1119 transitions. [2024-11-09 06:51:32,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7440159574468085 [2024-11-09 06:51:32,087 INFO L175 Difference]: Start difference. First operand has 349 places, 1000 transitions, 19975 flow. Second operand 16 states and 1119 transitions. [2024-11-09 06:51:32,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1383 transitions, 27350 flow [2024-11-09 06:51:33,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1383 transitions, 27013 flow, removed 65 selfloop flow, removed 8 redundant places. [2024-11-09 06:51:33,160 INFO L231 Difference]: Finished difference. Result has 364 places, 1054 transitions, 20880 flow [2024-11-09 06:51:33,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19707, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=20880, PETRI_PLACES=364, PETRI_TRANSITIONS=1054} [2024-11-09 06:51:33,161 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 272 predicate places. [2024-11-09 06:51:33,161 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 1054 transitions, 20880 flow [2024-11-09 06:51:33,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:33,162 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:33,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:51:33,162 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:33,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:33,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1656638187, now seen corresponding path program 3 times [2024-11-09 06:51:33,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:33,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529425675] [2024-11-09 06:51:33,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:33,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:33,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:33,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529425675] [2024-11-09 06:51:33,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529425675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:33,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:33,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859828323] [2024-11-09 06:51:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:33,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:33,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:33,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:33,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:33,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1054 transitions, 20880 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:33,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:33,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:36,443 INFO L124 PetriNetUnfolderBase]: 2637/7470 cut-off events. [2024-11-09 06:51:36,443 INFO L125 PetriNetUnfolderBase]: For 145674/146640 co-relation queries the response was YES. [2024-11-09 06:51:36,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49511 conditions, 7470 events. 2637/7470 cut-off events. For 145674/146640 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 71698 event pairs, 267 based on Foata normal form. 220/7654 useless extension candidates. Maximal degree in co-relation 49345. Up to 1984 conditions per place. [2024-11-09 06:51:36,515 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 720 selfloop transitions, 216 changer transitions 28/1262 dead transitions. [2024-11-09 06:51:36,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1262 transitions, 25568 flow [2024-11-09 06:51:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:51:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 06:51:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2024-11-09 06:51:36,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7803951367781155 [2024-11-09 06:51:36,517 INFO L175 Difference]: Start difference. First operand has 364 places, 1054 transitions, 20880 flow. Second operand 14 states and 1027 transitions. [2024-11-09 06:51:36,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1262 transitions, 25568 flow [2024-11-09 06:51:37,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1262 transitions, 25382 flow, removed 71 selfloop flow, removed 5 redundant places. [2024-11-09 06:51:37,474 INFO L231 Difference]: Finished difference. Result has 379 places, 1074 transitions, 22108 flow [2024-11-09 06:51:37,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20694, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22108, PETRI_PLACES=379, PETRI_TRANSITIONS=1074} [2024-11-09 06:51:37,475 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 287 predicate places. [2024-11-09 06:51:37,475 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 1074 transitions, 22108 flow [2024-11-09 06:51:37,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:37,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:37,476 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:37,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:51:37,476 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:37,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:37,476 INFO L85 PathProgramCache]: Analyzing trace with hash 264199829, now seen corresponding path program 4 times [2024-11-09 06:51:37,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:37,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879496037] [2024-11-09 06:51:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:37,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:37,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879496037] [2024-11-09 06:51:37,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879496037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:37,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:37,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:37,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410049363] [2024-11-09 06:51:37,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:37,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:37,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:37,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:37,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:38,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:38,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1074 transitions, 22108 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:38,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:38,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:38,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:40,909 INFO L124 PetriNetUnfolderBase]: 2673/7597 cut-off events. [2024-11-09 06:51:40,909 INFO L125 PetriNetUnfolderBase]: For 163783/164814 co-relation queries the response was YES. [2024-11-09 06:51:40,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51620 conditions, 7597 events. 2673/7597 cut-off events. For 163783/164814 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73350 event pairs, 266 based on Foata normal form. 226/7790 useless extension candidates. Maximal degree in co-relation 51449. Up to 1985 conditions per place. [2024-11-09 06:51:41,006 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 759 selfloop transitions, 243 changer transitions 21/1321 dead transitions. [2024-11-09 06:51:41,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1321 transitions, 27686 flow [2024-11-09 06:51:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:41,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1097 transitions. [2024-11-09 06:51:41,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7780141843971631 [2024-11-09 06:51:41,008 INFO L175 Difference]: Start difference. First operand has 379 places, 1074 transitions, 22108 flow. Second operand 15 states and 1097 transitions. [2024-11-09 06:51:41,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1321 transitions, 27686 flow [2024-11-09 06:51:42,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1321 transitions, 27508 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-09 06:51:42,071 INFO L231 Difference]: Finished difference. Result has 392 places, 1113 transitions, 23817 flow [2024-11-09 06:51:42,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21944, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23817, PETRI_PLACES=392, PETRI_TRANSITIONS=1113} [2024-11-09 06:51:42,072 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 300 predicate places. [2024-11-09 06:51:42,072 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1113 transitions, 23817 flow [2024-11-09 06:51:42,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:42,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:42,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:42,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:51:42,073 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:42,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:42,073 INFO L85 PathProgramCache]: Analyzing trace with hash 51531535, now seen corresponding path program 5 times [2024-11-09 06:51:42,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:42,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029872923] [2024-11-09 06:51:42,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:42,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:42,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:42,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029872923] [2024-11-09 06:51:42,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029872923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:42,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:42,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:42,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092425282] [2024-11-09 06:51:42,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:42,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:42,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:42,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:42,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1113 transitions, 23817 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:42,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:42,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:42,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:45,549 INFO L124 PetriNetUnfolderBase]: 2684/7643 cut-off events. [2024-11-09 06:51:45,550 INFO L125 PetriNetUnfolderBase]: For 181217/182367 co-relation queries the response was YES. [2024-11-09 06:51:45,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53144 conditions, 7643 events. 2684/7643 cut-off events. For 181217/182367 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 73981 event pairs, 263 based on Foata normal form. 295/7901 useless extension candidates. Maximal degree in co-relation 52968. Up to 1986 conditions per place. [2024-11-09 06:51:45,622 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 749 selfloop transitions, 257 changer transitions 26/1330 dead transitions. [2024-11-09 06:51:45,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1330 transitions, 28958 flow [2024-11-09 06:51:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1094 transitions. [2024-11-09 06:51:45,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.775886524822695 [2024-11-09 06:51:45,623 INFO L175 Difference]: Start difference. First operand has 392 places, 1113 transitions, 23817 flow. Second operand 15 states and 1094 transitions. [2024-11-09 06:51:45,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1330 transitions, 28958 flow [2024-11-09 06:51:46,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1330 transitions, 28661 flow, removed 36 selfloop flow, removed 9 redundant places. [2024-11-09 06:51:46,610 INFO L231 Difference]: Finished difference. Result has 402 places, 1140 transitions, 25236 flow [2024-11-09 06:51:46,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23533, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25236, PETRI_PLACES=402, PETRI_TRANSITIONS=1140} [2024-11-09 06:51:46,611 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 310 predicate places. [2024-11-09 06:51:46,611 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 1140 transitions, 25236 flow [2024-11-09 06:51:46,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:46,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:46,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:46,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:51:46,612 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:46,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:46,612 INFO L85 PathProgramCache]: Analyzing trace with hash -19214287, now seen corresponding path program 8 times [2024-11-09 06:51:46,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:46,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912922089] [2024-11-09 06:51:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:46,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:46,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:46,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912922089] [2024-11-09 06:51:46,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912922089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:46,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:46,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:46,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043784992] [2024-11-09 06:51:46,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:46,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:46,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:46,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:46,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:47,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:47,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1140 transitions, 25236 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:47,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:47,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:47,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:49,914 INFO L124 PetriNetUnfolderBase]: 2711/7696 cut-off events. [2024-11-09 06:51:49,914 INFO L125 PetriNetUnfolderBase]: For 197160/198572 co-relation queries the response was YES. [2024-11-09 06:51:50,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55252 conditions, 7696 events. 2711/7696 cut-off events. For 197160/198572 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 74777 event pairs, 279 based on Foata normal form. 318/7982 useless extension candidates. Maximal degree in co-relation 55072. Up to 2023 conditions per place. [2024-11-09 06:51:50,125 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 732 selfloop transitions, 392 changer transitions 22/1346 dead transitions. [2024-11-09 06:51:50,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1346 transitions, 31395 flow [2024-11-09 06:51:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2024-11-09 06:51:50,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2024-11-09 06:51:50,127 INFO L175 Difference]: Start difference. First operand has 402 places, 1140 transitions, 25236 flow. Second operand 15 states and 1075 transitions. [2024-11-09 06:51:50,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1346 transitions, 31395 flow [2024-11-09 06:51:51,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1346 transitions, 31102 flow, removed 29 selfloop flow, removed 9 redundant places. [2024-11-09 06:51:51,307 INFO L231 Difference]: Finished difference. Result has 414 places, 1189 transitions, 27758 flow [2024-11-09 06:51:51,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=24961, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27758, PETRI_PLACES=414, PETRI_TRANSITIONS=1189} [2024-11-09 06:51:51,308 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 322 predicate places. [2024-11-09 06:51:51,309 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 1189 transitions, 27758 flow [2024-11-09 06:51:51,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:51,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:51,309 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:51,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:51:51,309 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:51,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:51,310 INFO L85 PathProgramCache]: Analyzing trace with hash -412887781, now seen corresponding path program 6 times [2024-11-09 06:51:51,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:51,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47580883] [2024-11-09 06:51:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:51,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:51,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:51,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47580883] [2024-11-09 06:51:51,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47580883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:51,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:51,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:51,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049740048] [2024-11-09 06:51:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:51,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:51,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:51,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-09 06:51:51,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 1189 transitions, 27758 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:51,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:51,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-09 06:51:51,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:54,813 INFO L124 PetriNetUnfolderBase]: 2719/7779 cut-off events. [2024-11-09 06:51:54,813 INFO L125 PetriNetUnfolderBase]: For 204282/205495 co-relation queries the response was YES. [2024-11-09 06:51:54,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56099 conditions, 7779 events. 2719/7779 cut-off events. For 204282/205495 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 75781 event pairs, 256 based on Foata normal form. 279/8028 useless extension candidates. Maximal degree in co-relation 55913. Up to 1987 conditions per place. [2024-11-09 06:51:55,009 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 821 selfloop transitions, 253 changer transitions 32/1422 dead transitions. [2024-11-09 06:51:55,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1422 transitions, 32937 flow [2024-11-09 06:51:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:51:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:51:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2024-11-09 06:51:55,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2024-11-09 06:51:55,011 INFO L175 Difference]: Start difference. First operand has 414 places, 1189 transitions, 27758 flow. Second operand 15 states and 1076 transitions. [2024-11-09 06:51:55,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1422 transitions, 32937 flow [2024-11-09 06:51:56,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 1422 transitions, 32544 flow, removed 96 selfloop flow, removed 8 redundant places. [2024-11-09 06:51:56,228 INFO L231 Difference]: Finished difference. Result has 429 places, 1214 transitions, 28714 flow [2024-11-09 06:51:56,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=27390, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28714, PETRI_PLACES=429, PETRI_TRANSITIONS=1214} [2024-11-09 06:51:56,229 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 337 predicate places. [2024-11-09 06:51:56,230 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 1214 transitions, 28714 flow [2024-11-09 06:51:56,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:56,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:56,230 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:56,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:51:56,231 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:56,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:56,231 INFO L85 PathProgramCache]: Analyzing trace with hash 62623573, now seen corresponding path program 2 times [2024-11-09 06:51:56,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:56,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606400565] [2024-11-09 06:51:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:56,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:56,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:56,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606400565] [2024-11-09 06:51:56,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606400565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:56,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:56,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:51:56,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47738189] [2024-11-09 06:51:56,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:56,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:51:56,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:56,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:51:56,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:56,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:51:56,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1214 transitions, 28714 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:56,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:56,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:51:56,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:00,140 INFO L124 PetriNetUnfolderBase]: 3371/9041 cut-off events. [2024-11-09 06:52:00,140 INFO L125 PetriNetUnfolderBase]: For 241340/242024 co-relation queries the response was YES. [2024-11-09 06:52:00,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67286 conditions, 9041 events. 3371/9041 cut-off events. For 241340/242024 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 86752 event pairs, 680 based on Foata normal form. 89/9070 useless extension candidates. Maximal degree in co-relation 67093. Up to 2967 conditions per place. [2024-11-09 06:52:00,404 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 891 selfloop transitions, 363 changer transitions 51/1392 dead transitions. [2024-11-09 06:52:00,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1392 transitions, 33730 flow [2024-11-09 06:52:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:52:00,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 06:52:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 964 transitions. [2024-11-09 06:52:00,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7325227963525835 [2024-11-09 06:52:00,406 INFO L175 Difference]: Start difference. First operand has 429 places, 1214 transitions, 28714 flow. Second operand 14 states and 964 transitions. [2024-11-09 06:52:00,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1392 transitions, 33730 flow [2024-11-09 06:52:01,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1392 transitions, 33154 flow, removed 94 selfloop flow, removed 10 redundant places. [2024-11-09 06:52:01,956 INFO L231 Difference]: Finished difference. Result has 438 places, 1246 transitions, 29769 flow [2024-11-09 06:52:01,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=28177, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29769, PETRI_PLACES=438, PETRI_TRANSITIONS=1246} [2024-11-09 06:52:01,957 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 346 predicate places. [2024-11-09 06:52:01,957 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1246 transitions, 29769 flow [2024-11-09 06:52:01,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:01,958 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:01,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:52:01,958 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:01,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:01,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1605457173, now seen corresponding path program 3 times [2024-11-09 06:52:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:01,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229544435] [2024-11-09 06:52:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:01,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:02,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:02,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229544435] [2024-11-09 06:52:02,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229544435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:02,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:02,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:52:02,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598837176] [2024-11-09 06:52:02,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:02,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:52:02,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:02,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:52:02,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:52:02,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:52:02,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1246 transitions, 29769 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:02,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:02,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:52:02,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:06,503 INFO L124 PetriNetUnfolderBase]: 3428/9159 cut-off events. [2024-11-09 06:52:06,503 INFO L125 PetriNetUnfolderBase]: For 248624/249333 co-relation queries the response was YES. [2024-11-09 06:52:06,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69451 conditions, 9159 events. 3428/9159 cut-off events. For 248624/249333 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 87868 event pairs, 641 based on Foata normal form. 110/9213 useless extension candidates. Maximal degree in co-relation 69256. Up to 2967 conditions per place. [2024-11-09 06:52:06,622 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1202 selfloop transitions, 201 changer transitions 22/1512 dead transitions. [2024-11-09 06:52:06,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1512 transitions, 36653 flow [2024-11-09 06:52:06,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:52:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:52:06,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1035 transitions. [2024-11-09 06:52:06,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7340425531914894 [2024-11-09 06:52:06,623 INFO L175 Difference]: Start difference. First operand has 438 places, 1246 transitions, 29769 flow. Second operand 15 states and 1035 transitions. [2024-11-09 06:52:06,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1512 transitions, 36653 flow [2024-11-09 06:52:08,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1512 transitions, 36515 flow, removed 29 selfloop flow, removed 7 redundant places. [2024-11-09 06:52:08,375 INFO L231 Difference]: Finished difference. Result has 451 places, 1297 transitions, 31409 flow [2024-11-09 06:52:08,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29644, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31409, PETRI_PLACES=451, PETRI_TRANSITIONS=1297} [2024-11-09 06:52:08,376 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 359 predicate places. [2024-11-09 06:52:08,376 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 1297 transitions, 31409 flow [2024-11-09 06:52:08,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:08,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:08,376 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] [2024-11-09 06:52:08,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 06:52:08,376 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:08,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:08,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1779910327, now seen corresponding path program 4 times [2024-11-09 06:52:08,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:08,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981350641] [2024-11-09 06:52:08,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:08,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:08,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:08,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981350641] [2024-11-09 06:52:08,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981350641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:08,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:08,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:52:08,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813458662] [2024-11-09 06:52:08,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:08,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:52:08,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:08,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:52:08,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:52:08,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-09 06:52:08,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1297 transitions, 31409 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:08,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:08,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-09 06:52:08,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:12,680 INFO L124 PetriNetUnfolderBase]: 3475/9307 cut-off events. [2024-11-09 06:52:12,680 INFO L125 PetriNetUnfolderBase]: For 262589/263296 co-relation queries the response was YES. [2024-11-09 06:52:12,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72305 conditions, 9307 events. 3475/9307 cut-off events. For 262589/263296 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 89739 event pairs, 680 based on Foata normal form. 107/9354 useless extension candidates. Maximal degree in co-relation 72104. Up to 2967 conditions per place. [2024-11-09 06:52:12,976 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 946 selfloop transitions, 385 changer transitions 54/1472 dead transitions. [2024-11-09 06:52:12,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1472 transitions, 36754 flow [2024-11-09 06:52:12,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:52:12,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 06:52:12,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1027 transitions. [2024-11-09 06:52:12,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7283687943262411 [2024-11-09 06:52:12,978 INFO L175 Difference]: Start difference. First operand has 451 places, 1297 transitions, 31409 flow. Second operand 15 states and 1027 transitions. [2024-11-09 06:52:12,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1472 transitions, 36754 flow