./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-theta/unwind3-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind3-100.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 51e84781857cfc73ae131a38742d9d6222707e54f6a010e2853f82c7770f5a96 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:06:14,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:06:14,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 18:06:14,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:06:14,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:06:14,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:06:14,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:06:14,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:06:14,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:06:14,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:06:14,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:06:14,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:06:14,394 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:06:14,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:06:14,394 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 18:06:14,394 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:06:14,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:06:14,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:06:14,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:06:14,395 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 18:06:14,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:06:14,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 18:06:14,396 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 18:06:14,396 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:06:14,397 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:06:14,397 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:06:14,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 18:06:14,397 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:06:14,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:06:14,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:06:14,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:06:14,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:06:14,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:06:14,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:06:14,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 18:06:14,399 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:06:14,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:06:14,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:06:14,400 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:06:14,400 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:06:14,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:06:14,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51e84781857cfc73ae131a38742d9d6222707e54f6a010e2853f82c7770f5a96 [2024-11-22 18:06:14,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:06:14,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:06:14,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:06:14,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:06:14,607 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:06:14,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind3-100.i [2024-11-22 18:06:15,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:06:15,985 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:06:15,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-100.i [2024-11-22 18:06:15,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ba01d27/cd7414478beb489cb93d4b91cf7e5b87/FLAG022ddc613 [2024-11-22 18:06:16,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ba01d27/cd7414478beb489cb93d4b91cf7e5b87 [2024-11-22 18:06:16,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:06:16,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:06:16,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:06:16,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:06:16,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:06:16,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52899b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16, skipping insertion in model container [2024-11-22 18:06:16,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:06:16,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:06:16,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:06:16,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:06:16,764 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:06:16,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16 WrapperNode [2024-11-22 18:06:16,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:06:16,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:06:16,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:06:16,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:06:16,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,849 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2024-11-22 18:06:16,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:06:16,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:06:16,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:06:16,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:06:16,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:06:16,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:06:16,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:06:16,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:06:16,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (1/1) ... [2024-11-22 18:06:16,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:06:16,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:06:16,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 18:06:16,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 18:06:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:06:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-22 18:06:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-22 18:06:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-22 18:06:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-22 18:06:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 18:06:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:06:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:06:16,962 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 18:06:17,055 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:06:17,057 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:06:17,195 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 18:06:17,195 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:06:17,210 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:06:17,211 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 18:06:17,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:06:17 BoogieIcfgContainer [2024-11-22 18:06:17,211 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:06:17,214 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:06:17,214 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:06:17,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:06:17,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:06:16" (1/3) ... [2024-11-22 18:06:17,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b008ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:06:17, skipping insertion in model container [2024-11-22 18:06:17,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:06:16" (2/3) ... [2024-11-22 18:06:17,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b008ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:06:17, skipping insertion in model container [2024-11-22 18:06:17,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:06:17" (3/3) ... [2024-11-22 18:06:17,218 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-100.i [2024-11-22 18:06:17,230 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:06:17,231 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-22 18:06:17,231 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 18:06:17,282 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:17,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 106 transitions, 220 flow [2024-11-22 18:06:17,367 INFO L124 PetriNetUnfolderBase]: 12/156 cut-off events. [2024-11-22 18:06:17,367 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:17,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 12/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 93. Up to 4 conditions per place. [2024-11-22 18:06:17,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 106 transitions, 220 flow [2024-11-22 18:06:17,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 185 flow [2024-11-22 18:06:17,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:17,387 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:17,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-22 18:06:17,391 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:17,391 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:17,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:17,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:17,393 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:17,394 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:06:17,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:17,397 INFO L85 PathProgramCache]: Analyzing trace with hash 408147467, now seen corresponding path program 1 times [2024-11-22 18:06:17,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:17,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17945748] [2024-11-22 18:06:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:17,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:17,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:17,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17945748] [2024-11-22 18:06:17,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17945748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:17,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:17,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:17,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122136876] [2024-11-22 18:06:17,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:17,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:17,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:17,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:17,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:17,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 106 [2024-11-22 18:06:17,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:17,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:17,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 106 [2024-11-22 18:06:17,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:17,669 INFO L124 PetriNetUnfolderBase]: 5/124 cut-off events. [2024-11-22 18:06:17,673 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 18:06:17,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 124 events. 5/124 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 187 event pairs, 2 based on Foata normal form. 3/114 useless extension candidates. Maximal degree in co-relation 93. Up to 20 conditions per place. [2024-11-22 18:06:17,675 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 2 changer transitions 1/85 dead transitions. [2024-11-22 18:06:17,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 85 transitions, 203 flow [2024-11-22 18:06:17,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:17,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-11-22 18:06:17,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8647798742138365 [2024-11-22 18:06:17,686 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 185 flow. Second operand 3 states and 275 transitions. [2024-11-22 18:06:17,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 85 transitions, 203 flow [2024-11-22 18:06:17,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:17,692 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 178 flow [2024-11-22 18:06:17,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2024-11-22 18:06:17,696 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-11-22 18:06:17,696 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 178 flow [2024-11-22 18:06:17,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:17,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:17,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:17,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:06:17,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:06:17,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash 69046650, now seen corresponding path program 1 times [2024-11-22 18:06:17,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:17,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298472219] [2024-11-22 18:06:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:17,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:17,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:17,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:17,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298472219] [2024-11-22 18:06:17,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298472219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:17,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:17,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:17,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849530403] [2024-11-22 18:06:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:17,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:17,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:17,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:17,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 106 [2024-11-22 18:06:17,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:17,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:17,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 106 [2024-11-22 18:06:17,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:17,798 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-22 18:06:17,799 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 18:06:17,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 110 events. 3/110 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 2/107 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2024-11-22 18:06:17,800 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 9 selfloop transitions, 1 changer transitions 24/79 dead transitions. [2024-11-22 18:06:17,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 79 transitions, 192 flow [2024-11-22 18:06:17,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-11-22 18:06:17,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8270440251572327 [2024-11-22 18:06:17,805 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 178 flow. Second operand 3 states and 263 transitions. [2024-11-22 18:06:17,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 79 transitions, 192 flow [2024-11-22 18:06:17,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:17,807 INFO L231 Difference]: Finished difference. Result has 84 places, 55 transitions, 116 flow [2024-11-22 18:06:17,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=84, PETRI_TRANSITIONS=55} [2024-11-22 18:06:17,811 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2024-11-22 18:06:17,811 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 55 transitions, 116 flow [2024-11-22 18:06:17,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:17,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:17,811 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:17,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:06:17,812 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:06:17,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:17,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1156401811, now seen corresponding path program 1 times [2024-11-22 18:06:17,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:17,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991159469] [2024-11-22 18:06:17,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:17,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 18:06:17,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:17,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991159469] [2024-11-22 18:06:17,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991159469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:17,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:17,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:17,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624259549] [2024-11-22 18:06:17,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:17,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:17,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:17,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:17,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:17,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-22 18:06:17,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 55 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:17,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:17,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-22 18:06:17,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:18,024 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2024-11-22 18:06:18,024 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 18:06:18,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 61 events. 0/61 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2024-11-22 18:06:18,025 INFO L140 encePairwiseOnDemand]: 102/106 looper letters, 5 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2024-11-22 18:06:18,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 130 flow [2024-11-22 18:06:18,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2024-11-22 18:06:18,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8608490566037735 [2024-11-22 18:06:18,027 INFO L175 Difference]: Start difference. First operand has 84 places, 55 transitions, 116 flow. Second operand 4 states and 365 transitions. [2024-11-22 18:06:18,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 130 flow [2024-11-22 18:06:18,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:18,028 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 119 flow [2024-11-22 18:06:18,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-11-22 18:06:18,029 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -29 predicate places. [2024-11-22 18:06:18,029 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 119 flow [2024-11-22 18:06:18,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,029 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:06:18,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:06:18,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1252743650, now seen corresponding path program 1 times [2024-11-22 18:06:18,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381639098] [2024-11-22 18:06:18,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:18,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:18,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:18,094 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:18,095 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-22 18:06:18,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-22 18:06:18,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-22 18:06:18,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-22 18:06:18,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-22 18:06:18,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-22 18:06:18,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-22 18:06:18,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-22 18:06:18,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-22 18:06:18,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:06:18,100 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:18,102 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:18,102 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 18:06:18,146 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:18,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 143 transitions, 306 flow [2024-11-22 18:06:18,179 INFO L124 PetriNetUnfolderBase]: 17/220 cut-off events. [2024-11-22 18:06:18,180 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 18:06:18,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 220 events. 17/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 439 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 231. Up to 6 conditions per place. [2024-11-22 18:06:18,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 143 transitions, 306 flow [2024-11-22 18:06:18,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 96 transitions, 205 flow [2024-11-22 18:06:18,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:18,186 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:18,186 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-22 18:06:18,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:18,188 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:18,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:18,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,189 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:06:18,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,190 INFO L85 PathProgramCache]: Analyzing trace with hash -852624597, now seen corresponding path program 1 times [2024-11-22 18:06:18,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133469672] [2024-11-22 18:06:18,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:18,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:18,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133469672] [2024-11-22 18:06:18,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133469672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:18,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:18,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:18,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284861965] [2024-11-22 18:06:18,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:18,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:18,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:18,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:18,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:18,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 143 [2024-11-22 18:06:18,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:18,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 143 [2024-11-22 18:06:18,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:18,278 INFO L124 PetriNetUnfolderBase]: 7/173 cut-off events. [2024-11-22 18:06:18,278 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-22 18:06:18,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 173 events. 7/173 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 330 event pairs, 3 based on Foata normal form. 4/160 useless extension candidates. Maximal degree in co-relation 150. Up to 27 conditions per place. [2024-11-22 18:06:18,280 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 12 selfloop transitions, 2 changer transitions 1/92 dead transitions. [2024-11-22 18:06:18,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 225 flow [2024-11-22 18:06:18,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:18,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2024-11-22 18:06:18,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8531468531468531 [2024-11-22 18:06:18,283 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 205 flow. Second operand 3 states and 366 transitions. [2024-11-22 18:06:18,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 225 flow [2024-11-22 18:06:18,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 92 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:18,286 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 198 flow [2024-11-22 18:06:18,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-11-22 18:06:18,287 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2024-11-22 18:06:18,288 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 198 flow [2024-11-22 18:06:18,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:06:18,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:06:18,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -102366455, now seen corresponding path program 1 times [2024-11-22 18:06:18,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309109428] [2024-11-22 18:06:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:18,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:18,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309109428] [2024-11-22 18:06:18,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309109428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:18,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:18,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:18,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153413871] [2024-11-22 18:06:18,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:18,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:18,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:18,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:18,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:18,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 143 [2024-11-22 18:06:18,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:18,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 143 [2024-11-22 18:06:18,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:18,354 INFO L124 PetriNetUnfolderBase]: 4/154 cut-off events. [2024-11-22 18:06:18,354 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 18:06:18,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 154 events. 4/154 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 246 event pairs, 0 based on Foata normal form. 3/150 useless extension candidates. Maximal degree in co-relation 170. Up to 20 conditions per place. [2024-11-22 18:06:18,355 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 10 selfloop transitions, 1 changer transitions 24/86 dead transitions. [2024-11-22 18:06:18,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 86 transitions, 214 flow [2024-11-22 18:06:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:18,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-11-22 18:06:18,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8111888111888111 [2024-11-22 18:06:18,360 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 198 flow. Second operand 3 states and 348 transitions. [2024-11-22 18:06:18,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 86 transitions, 214 flow [2024-11-22 18:06:18,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 86 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:18,361 INFO L231 Difference]: Finished difference. Result has 93 places, 62 transitions, 136 flow [2024-11-22 18:06:18,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=93, PETRI_TRANSITIONS=62} [2024-11-22 18:06:18,364 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -6 predicate places. [2024-11-22 18:06:18,364 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 62 transitions, 136 flow [2024-11-22 18:06:18,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,365 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:06:18,365 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:06:18,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,366 INFO L85 PathProgramCache]: Analyzing trace with hash 679949262, now seen corresponding path program 1 times [2024-11-22 18:06:18,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865086084] [2024-11-22 18:06:18,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:18,447 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 18:06:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865086084] [2024-11-22 18:06:18,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865086084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:18,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:18,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:18,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025059251] [2024-11-22 18:06:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:18,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:18,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 143 [2024-11-22 18:06:18,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 62 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:18,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 143 [2024-11-22 18:06:18,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:18,490 INFO L124 PetriNetUnfolderBase]: 0/81 cut-off events. [2024-11-22 18:06:18,491 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-22 18:06:18,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 81 events. 0/81 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2024-11-22 18:06:18,491 INFO L140 encePairwiseOnDemand]: 139/143 looper letters, 6 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2024-11-22 18:06:18,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 61 transitions, 152 flow [2024-11-22 18:06:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-11-22 18:06:18,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8566433566433567 [2024-11-22 18:06:18,493 INFO L175 Difference]: Start difference. First operand has 93 places, 62 transitions, 136 flow. Second operand 4 states and 490 transitions. [2024-11-22 18:06:18,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 61 transitions, 152 flow [2024-11-22 18:06:18,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:18,494 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 139 flow [2024-11-22 18:06:18,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-22 18:06:18,495 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-11-22 18:06:18,495 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 139 flow [2024-11-22 18:06:18,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,497 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:06:18,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-22 18:06:18,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1617747374, now seen corresponding path program 1 times [2024-11-22 18:06:18,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916206741] [2024-11-22 18:06:18,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:18,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:18,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:18,529 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:18,529 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-22 18:06:18,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-22 18:06:18,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-22 18:06:18,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-22 18:06:18,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-22 18:06:18,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-22 18:06:18,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-11-22 18:06:18,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-22 18:06:18,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-22 18:06:18,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-22 18:06:18,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:06:18,532 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:18,532 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:18,532 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-22 18:06:18,564 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:18,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 180 transitions, 396 flow [2024-11-22 18:06:18,581 INFO L124 PetriNetUnfolderBase]: 22/284 cut-off events. [2024-11-22 18:06:18,582 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-22 18:06:18,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 284 events. 22/284 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 644 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 301. Up to 8 conditions per place. [2024-11-22 18:06:18,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 180 transitions, 396 flow [2024-11-22 18:06:18,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 103 transitions, 227 flow [2024-11-22 18:06:18,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:18,587 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:18,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-22 18:06:18,590 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:18,590 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:18,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:18,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:06:18,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,591 INFO L85 PathProgramCache]: Analyzing trace with hash -397248341, now seen corresponding path program 1 times [2024-11-22 18:06:18,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225720498] [2024-11-22 18:06:18,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:18,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:18,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225720498] [2024-11-22 18:06:18,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225720498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:18,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:18,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:18,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867222252] [2024-11-22 18:06:18,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:18,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:18,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:18,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:18,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 180 [2024-11-22 18:06:18,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:18,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 180 [2024-11-22 18:06:18,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:18,678 INFO L124 PetriNetUnfolderBase]: 9/222 cut-off events. [2024-11-22 18:06:18,678 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-22 18:06:18,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 222 events. 9/222 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 481 event pairs, 4 based on Foata normal form. 9/210 useless extension candidates. Maximal degree in co-relation 211. Up to 34 conditions per place. [2024-11-22 18:06:18,679 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 13 selfloop transitions, 2 changer transitions 1/99 dead transitions. [2024-11-22 18:06:18,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 99 transitions, 249 flow [2024-11-22 18:06:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:18,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-11-22 18:06:18,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8462962962962963 [2024-11-22 18:06:18,680 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 227 flow. Second operand 3 states and 457 transitions. [2024-11-22 18:06:18,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 99 transitions, 249 flow [2024-11-22 18:06:18,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 99 transitions, 246 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:18,683 INFO L231 Difference]: Finished difference. Result has 108 places, 98 transitions, 218 flow [2024-11-22 18:06:18,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=98} [2024-11-22 18:06:18,684 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, 0 predicate places. [2024-11-22 18:06:18,684 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 98 transitions, 218 flow [2024-11-22 18:06:18,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:06:18,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:06:18,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1789833283, now seen corresponding path program 1 times [2024-11-22 18:06:18,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425970550] [2024-11-22 18:06:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:18,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:18,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:18,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425970550] [2024-11-22 18:06:18,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425970550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:18,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:18,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:18,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241625] [2024-11-22 18:06:18,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:18,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:18,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:18,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:18,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:18,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 180 [2024-11-22 18:06:18,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 98 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:18,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 180 [2024-11-22 18:06:18,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:18,763 INFO L124 PetriNetUnfolderBase]: 5/198 cut-off events. [2024-11-22 18:06:18,764 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-22 18:06:18,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 198 events. 5/198 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 362 event pairs, 0 based on Foata normal form. 4/193 useless extension candidates. Maximal degree in co-relation 224. Up to 25 conditions per place. [2024-11-22 18:06:18,765 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 11 selfloop transitions, 1 changer transitions 24/93 dead transitions. [2024-11-22 18:06:18,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 236 flow [2024-11-22 18:06:18,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:18,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2024-11-22 18:06:18,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8018518518518518 [2024-11-22 18:06:18,767 INFO L175 Difference]: Start difference. First operand has 108 places, 98 transitions, 218 flow. Second operand 3 states and 433 transitions. [2024-11-22 18:06:18,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 236 flow [2024-11-22 18:06:18,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 93 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:18,769 INFO L231 Difference]: Finished difference. Result has 102 places, 69 transitions, 156 flow [2024-11-22 18:06:18,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=102, PETRI_TRANSITIONS=69} [2024-11-22 18:06:18,769 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, -6 predicate places. [2024-11-22 18:06:18,769 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 69 transitions, 156 flow [2024-11-22 18:06:18,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,770 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:06:18,772 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:06:18,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,772 INFO L85 PathProgramCache]: Analyzing trace with hash -179872138, now seen corresponding path program 1 times [2024-11-22 18:06:18,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414055016] [2024-11-22 18:06:18,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-22 18:06:18,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:18,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414055016] [2024-11-22 18:06:18,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414055016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:18,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:18,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:18,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172058720] [2024-11-22 18:06:18,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:18,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:18,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:18,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:18,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:18,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 180 [2024-11-22 18:06:18,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 69 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:18,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 180 [2024-11-22 18:06:18,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:18,921 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2024-11-22 18:06:18,921 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-22 18:06:18,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 101 events. 0/101 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 36 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2024-11-22 18:06:18,922 INFO L140 encePairwiseOnDemand]: 176/180 looper letters, 7 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-11-22 18:06:18,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 68 transitions, 174 flow [2024-11-22 18:06:18,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:18,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:18,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 615 transitions. [2024-11-22 18:06:18,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2024-11-22 18:06:18,925 INFO L175 Difference]: Start difference. First operand has 102 places, 69 transitions, 156 flow. Second operand 4 states and 615 transitions. [2024-11-22 18:06:18,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 68 transitions, 174 flow [2024-11-22 18:06:18,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 68 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:18,926 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 159 flow [2024-11-22 18:06:18,926 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-11-22 18:06:18,927 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, -29 predicate places. [2024-11-22 18:06:18,927 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 159 flow [2024-11-22 18:06:18,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:18,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:18,928 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:18,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 18:06:18,928 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-22 18:06:18,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash -558730614, now seen corresponding path program 1 times [2024-11-22 18:06:18,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:18,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51545810] [2024-11-22 18:06:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:18,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:18,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:18,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:18,968 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:18,968 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-22 18:06:18,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-22 18:06:18,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-22 18:06:18,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-22 18:06:18,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-22 18:06:18,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-22 18:06:18,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-22 18:06:18,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-22 18:06:18,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-22 18:06:18,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-22 18:06:18,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-22 18:06:18,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:06:18,970 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:18,971 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:18,971 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-22 18:06:19,003 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:19,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 217 transitions, 490 flow [2024-11-22 18:06:19,035 INFO L124 PetriNetUnfolderBase]: 27/348 cut-off events. [2024-11-22 18:06:19,035 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-22 18:06:19,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 348 events. 27/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 859 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 372. Up to 10 conditions per place. [2024-11-22 18:06:19,036 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 217 transitions, 490 flow [2024-11-22 18:06:19,037 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 110 transitions, 251 flow [2024-11-22 18:06:19,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:19,038 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:19,038 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-22 18:06:19,040 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:19,041 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:19,041 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:19,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,041 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:06:19,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1774276235, now seen corresponding path program 1 times [2024-11-22 18:06:19,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280287639] [2024-11-22 18:06:19,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:19,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280287639] [2024-11-22 18:06:19,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280287639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:19,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402943269] [2024-11-22 18:06:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:19,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:19,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:19,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 217 [2024-11-22 18:06:19,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 217 [2024-11-22 18:06:19,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,120 INFO L124 PetriNetUnfolderBase]: 11/271 cut-off events. [2024-11-22 18:06:19,120 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-22 18:06:19,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 271 events. 11/271 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 617 event pairs, 5 based on Foata normal form. 6/252 useless extension candidates. Maximal degree in co-relation 273. Up to 41 conditions per place. [2024-11-22 18:06:19,121 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 14 selfloop transitions, 2 changer transitions 1/106 dead transitions. [2024-11-22 18:06:19,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 106 transitions, 275 flow [2024-11-22 18:06:19,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:19,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:19,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2024-11-22 18:06:19,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8417818740399385 [2024-11-22 18:06:19,123 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 251 flow. Second operand 3 states and 548 transitions. [2024-11-22 18:06:19,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 106 transitions, 275 flow [2024-11-22 18:06:19,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 106 transitions, 268 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:19,125 INFO L231 Difference]: Finished difference. Result has 117 places, 105 transitions, 238 flow [2024-11-22 18:06:19,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=117, PETRI_TRANSITIONS=105} [2024-11-22 18:06:19,126 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 0 predicate places. [2024-11-22 18:06:19,126 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 105 transitions, 238 flow [2024-11-22 18:06:19,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 18:06:19,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:06:19,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash -698386538, now seen corresponding path program 1 times [2024-11-22 18:06:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783529405] [2024-11-22 18:06:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:19,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783529405] [2024-11-22 18:06:19,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783529405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:19,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981122579] [2024-11-22 18:06:19,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:19,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:19,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 217 [2024-11-22 18:06:19,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 105 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 217 [2024-11-22 18:06:19,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,200 INFO L124 PetriNetUnfolderBase]: 6/242 cut-off events. [2024-11-22 18:06:19,200 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-22 18:06:19,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 242 events. 6/242 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 458 event pairs, 0 based on Foata normal form. 5/236 useless extension candidates. Maximal degree in co-relation 278. Up to 30 conditions per place. [2024-11-22 18:06:19,201 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 12 selfloop transitions, 1 changer transitions 24/100 dead transitions. [2024-11-22 18:06:19,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 100 transitions, 258 flow [2024-11-22 18:06:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-22 18:06:19,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2024-11-22 18:06:19,202 INFO L175 Difference]: Start difference. First operand has 117 places, 105 transitions, 238 flow. Second operand 3 states and 518 transitions. [2024-11-22 18:06:19,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 100 transitions, 258 flow [2024-11-22 18:06:19,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 100 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:19,204 INFO L231 Difference]: Finished difference. Result has 111 places, 76 transitions, 176 flow [2024-11-22 18:06:19,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=111, PETRI_TRANSITIONS=76} [2024-11-22 18:06:19,204 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -6 predicate places. [2024-11-22 18:06:19,204 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 76 transitions, 176 flow [2024-11-22 18:06:19,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,205 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 18:06:19,205 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:06:19,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,206 INFO L85 PathProgramCache]: Analyzing trace with hash -643705595, now seen corresponding path program 1 times [2024-11-22 18:06:19,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956236039] [2024-11-22 18:06:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 18:06:19,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956236039] [2024-11-22 18:06:19,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956236039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:19,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432350765] [2024-11-22 18:06:19,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:19,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:19,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 217 [2024-11-22 18:06:19,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 76 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 184.5) internal successors, (738), 4 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) [2024-11-22 18:06:19,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 217 [2024-11-22 18:06:19,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,295 INFO L124 PetriNetUnfolderBase]: 0/121 cut-off events. [2024-11-22 18:06:19,295 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-22 18:06:19,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 121 events. 0/121 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 47 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2024-11-22 18:06:19,296 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 8 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-22 18:06:19,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 75 transitions, 196 flow [2024-11-22 18:06:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:19,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:19,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 740 transitions. [2024-11-22 18:06:19,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8525345622119815 [2024-11-22 18:06:19,297 INFO L175 Difference]: Start difference. First operand has 111 places, 76 transitions, 176 flow. Second operand 4 states and 740 transitions. [2024-11-22 18:06:19,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 75 transitions, 196 flow [2024-11-22 18:06:19,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 75 transitions, 195 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:19,299 INFO L231 Difference]: Finished difference. Result has 88 places, 75 transitions, 179 flow [2024-11-22 18:06:19,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=88, PETRI_TRANSITIONS=75} [2024-11-22 18:06:19,299 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -29 predicate places. [2024-11-22 18:06:19,299 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 75 transitions, 179 flow [2024-11-22 18:06:19,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.5) internal successors, (738), 4 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) [2024-11-22 18:06:19,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,300 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 18:06:19,300 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 18:06:19,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2031627794, now seen corresponding path program 1 times [2024-11-22 18:06:19,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814627377] [2024-11-22 18:06:19,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:19,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:19,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:19,323 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-22 18:06:19,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-22 18:06:19,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-22 18:06:19,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-22 18:06:19,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-22 18:06:19,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-22 18:06:19,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 18:06:19,324 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:19,324 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:19,325 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-22 18:06:19,353 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:19,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 254 transitions, 588 flow [2024-11-22 18:06:19,378 INFO L124 PetriNetUnfolderBase]: 32/412 cut-off events. [2024-11-22 18:06:19,379 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-22 18:06:19,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 412 events. 32/412 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1048 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 444. Up to 12 conditions per place. [2024-11-22 18:06:19,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 254 transitions, 588 flow [2024-11-22 18:06:19,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 117 transitions, 277 flow [2024-11-22 18:06:19,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:19,382 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:19,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-22 18:06:19,383 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:19,383 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:19,383 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:19,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,383 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-22 18:06:19,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1366981835, now seen corresponding path program 1 times [2024-11-22 18:06:19,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415834068] [2024-11-22 18:06:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:19,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415834068] [2024-11-22 18:06:19,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415834068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:19,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087155961] [2024-11-22 18:06:19,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:19,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:19,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:19,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 254 [2024-11-22 18:06:19,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 117 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 254 [2024-11-22 18:06:19,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,479 INFO L124 PetriNetUnfolderBase]: 13/320 cut-off events. [2024-11-22 18:06:19,479 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-22 18:06:19,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 320 events. 13/320 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 752 event pairs, 6 based on Foata normal form. 7/298 useless extension candidates. Maximal degree in co-relation 336. Up to 48 conditions per place. [2024-11-22 18:06:19,481 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 15 selfloop transitions, 2 changer transitions 1/113 dead transitions. [2024-11-22 18:06:19,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 113 transitions, 303 flow [2024-11-22 18:06:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:19,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:19,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2024-11-22 18:06:19,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8385826771653543 [2024-11-22 18:06:19,482 INFO L175 Difference]: Start difference. First operand has 126 places, 117 transitions, 277 flow. Second operand 3 states and 639 transitions. [2024-11-22 18:06:19,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 113 transitions, 303 flow [2024-11-22 18:06:19,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 113 transitions, 290 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:19,484 INFO L231 Difference]: Finished difference. Result has 126 places, 112 transitions, 258 flow [2024-11-22 18:06:19,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=126, PETRI_TRANSITIONS=112} [2024-11-22 18:06:19,485 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 0 predicate places. [2024-11-22 18:06:19,485 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 112 transitions, 258 flow [2024-11-22 18:06:19,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 18:06:19,486 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-22 18:06:19,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1122993516, now seen corresponding path program 1 times [2024-11-22 18:06:19,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100041638] [2024-11-22 18:06:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:19,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100041638] [2024-11-22 18:06:19,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100041638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:19,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097329399] [2024-11-22 18:06:19,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:19,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:19,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:19,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 254 [2024-11-22 18:06:19,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 112 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 254 [2024-11-22 18:06:19,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,554 INFO L124 PetriNetUnfolderBase]: 7/286 cut-off events. [2024-11-22 18:06:19,554 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-22 18:06:19,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 286 events. 7/286 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 564 event pairs, 0 based on Foata normal form. 6/279 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2024-11-22 18:06:19,555 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 13 selfloop transitions, 1 changer transitions 24/107 dead transitions. [2024-11-22 18:06:19,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 107 transitions, 280 flow [2024-11-22 18:06:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:19,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:19,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2024-11-22 18:06:19,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7913385826771654 [2024-11-22 18:06:19,557 INFO L175 Difference]: Start difference. First operand has 126 places, 112 transitions, 258 flow. Second operand 3 states and 603 transitions. [2024-11-22 18:06:19,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 107 transitions, 280 flow [2024-11-22 18:06:19,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 107 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:19,559 INFO L231 Difference]: Finished difference. Result has 120 places, 83 transitions, 196 flow [2024-11-22 18:06:19,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=120, PETRI_TRANSITIONS=83} [2024-11-22 18:06:19,560 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, -6 predicate places. [2024-11-22 18:06:19,560 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 83 transitions, 196 flow [2024-11-22 18:06:19,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,561 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 18:06:19,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-22 18:06:19,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1199707931, now seen corresponding path program 1 times [2024-11-22 18:06:19,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31477355] [2024-11-22 18:06:19,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-22 18:06:19,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31477355] [2024-11-22 18:06:19,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31477355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:19,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487020182] [2024-11-22 18:06:19,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:19,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:19,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:19,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 254 [2024-11-22 18:06:19,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 83 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 215.75) internal successors, (863), 4 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 254 [2024-11-22 18:06:19,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,676 INFO L124 PetriNetUnfolderBase]: 0/141 cut-off events. [2024-11-22 18:06:19,677 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-22 18:06:19,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 141 events. 0/141 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 60 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2024-11-22 18:06:19,677 INFO L140 encePairwiseOnDemand]: 250/254 looper letters, 9 selfloop transitions, 3 changer transitions 0/82 dead transitions. [2024-11-22 18:06:19,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 82 transitions, 218 flow [2024-11-22 18:06:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 865 transitions. [2024-11-22 18:06:19,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8513779527559056 [2024-11-22 18:06:19,679 INFO L175 Difference]: Start difference. First operand has 120 places, 83 transitions, 196 flow. Second operand 4 states and 865 transitions. [2024-11-22 18:06:19,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 82 transitions, 218 flow [2024-11-22 18:06:19,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 82 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:19,681 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 199 flow [2024-11-22 18:06:19,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2024-11-22 18:06:19,682 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, -29 predicate places. [2024-11-22 18:06:19,682 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 199 flow [2024-11-22 18:06:19,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 215.75) internal successors, (863), 4 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,683 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 18:06:19,683 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-22 18:06:19,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash 110991782, now seen corresponding path program 1 times [2024-11-22 18:06:19,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006387650] [2024-11-22 18:06:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:19,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:19,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:19,726 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:19,726 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-22 18:06:19,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-22 18:06:19,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-22 18:06:19,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-22 18:06:19,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-22 18:06:19,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-22 18:06:19,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-22 18:06:19,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-22 18:06:19,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-22 18:06:19,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-22 18:06:19,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-22 18:06:19,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-22 18:06:19,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-22 18:06:19,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 18:06:19,727 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:19,727 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:19,727 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-22 18:06:19,766 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:19,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 291 transitions, 690 flow [2024-11-22 18:06:19,807 INFO L124 PetriNetUnfolderBase]: 37/476 cut-off events. [2024-11-22 18:06:19,807 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-22 18:06:19,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 476 events. 37/476 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1227 event pairs, 0 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 517. Up to 14 conditions per place. [2024-11-22 18:06:19,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 291 transitions, 690 flow [2024-11-22 18:06:19,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 124 transitions, 305 flow [2024-11-22 18:06:19,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:19,810 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:19,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-22 18:06:19,811 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:19,811 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:19,811 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:19,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 18:06:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1619131541, now seen corresponding path program 1 times [2024-11-22 18:06:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952579337] [2024-11-22 18:06:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:19,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952579337] [2024-11-22 18:06:19,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952579337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:19,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329450110] [2024-11-22 18:06:19,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:19,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:19,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 291 [2024-11-22 18:06:19,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 124 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 291 [2024-11-22 18:06:19,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,910 INFO L124 PetriNetUnfolderBase]: 15/369 cut-off events. [2024-11-22 18:06:19,910 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-22 18:06:19,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 369 events. 15/369 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 891 event pairs, 7 based on Foata normal form. 8/344 useless extension candidates. Maximal degree in co-relation 400. Up to 55 conditions per place. [2024-11-22 18:06:19,911 INFO L140 encePairwiseOnDemand]: 285/291 looper letters, 16 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2024-11-22 18:06:19,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 120 transitions, 333 flow [2024-11-22 18:06:19,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:19,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 730 transitions. [2024-11-22 18:06:19,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8361970217640321 [2024-11-22 18:06:19,913 INFO L175 Difference]: Start difference. First operand has 135 places, 124 transitions, 305 flow. Second operand 3 states and 730 transitions. [2024-11-22 18:06:19,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 120 transitions, 333 flow [2024-11-22 18:06:19,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 120 transitions, 312 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:19,915 INFO L231 Difference]: Finished difference. Result has 135 places, 119 transitions, 278 flow [2024-11-22 18:06:19,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=135, PETRI_TRANSITIONS=119} [2024-11-22 18:06:19,916 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, 0 predicate places. [2024-11-22 18:06:19,916 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 119 transitions, 278 flow [2024-11-22 18:06:19,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 18:06:19,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 18:06:19,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1231313079, now seen corresponding path program 1 times [2024-11-22 18:06:19,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951093850] [2024-11-22 18:06:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:19,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:19,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:19,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951093850] [2024-11-22 18:06:19,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951093850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:19,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:19,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:19,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347469900] [2024-11-22 18:06:19,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:19,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:19,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:19,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:19,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 291 [2024-11-22 18:06:19,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 119 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:19,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 291 [2024-11-22 18:06:19,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:19,988 INFO L124 PetriNetUnfolderBase]: 8/330 cut-off events. [2024-11-22 18:06:19,988 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-22 18:06:19,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 330 events. 8/330 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 671 event pairs, 0 based on Foata normal form. 7/322 useless extension candidates. Maximal degree in co-relation 386. Up to 40 conditions per place. [2024-11-22 18:06:19,989 INFO L140 encePairwiseOnDemand]: 285/291 looper letters, 14 selfloop transitions, 1 changer transitions 24/114 dead transitions. [2024-11-22 18:06:19,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 114 transitions, 302 flow [2024-11-22 18:06:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-11-22 18:06:19,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7880870561282932 [2024-11-22 18:06:19,991 INFO L175 Difference]: Start difference. First operand has 135 places, 119 transitions, 278 flow. Second operand 3 states and 688 transitions. [2024-11-22 18:06:19,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 114 transitions, 302 flow [2024-11-22 18:06:19,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 114 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:19,993 INFO L231 Difference]: Finished difference. Result has 129 places, 90 transitions, 216 flow [2024-11-22 18:06:19,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=129, PETRI_TRANSITIONS=90} [2024-11-22 18:06:19,993 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -6 predicate places. [2024-11-22 18:06:19,993 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 90 transitions, 216 flow [2024-11-22 18:06:19,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:19,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:19,994 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:19,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 18:06:19,994 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 18:06:19,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:19,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1934850984, now seen corresponding path program 1 times [2024-11-22 18:06:19,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:19,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745263586] [2024-11-22 18:06:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:19,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:20,039 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-22 18:06:20,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:20,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745263586] [2024-11-22 18:06:20,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745263586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:20,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:20,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:20,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100598728] [2024-11-22 18:06:20,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:20,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:20,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:20,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:20,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:20,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 291 [2024-11-22 18:06:20,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 90 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:20,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 291 [2024-11-22 18:06:20,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:20,114 INFO L124 PetriNetUnfolderBase]: 0/161 cut-off events. [2024-11-22 18:06:20,114 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-22 18:06:20,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 161 events. 0/161 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 72 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2024-11-22 18:06:20,115 INFO L140 encePairwiseOnDemand]: 287/291 looper letters, 10 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-22 18:06:20,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 89 transitions, 240 flow [2024-11-22 18:06:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:20,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:20,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 990 transitions. [2024-11-22 18:06:20,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8505154639175257 [2024-11-22 18:06:20,117 INFO L175 Difference]: Start difference. First operand has 129 places, 90 transitions, 216 flow. Second operand 4 states and 990 transitions. [2024-11-22 18:06:20,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 89 transitions, 240 flow [2024-11-22 18:06:20,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 89 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:20,119 INFO L231 Difference]: Finished difference. Result has 106 places, 89 transitions, 219 flow [2024-11-22 18:06:20,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=106, PETRI_TRANSITIONS=89} [2024-11-22 18:06:20,119 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -29 predicate places. [2024-11-22 18:06:20,120 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 89 transitions, 219 flow [2024-11-22 18:06:20,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,120 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 18:06:20,121 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 18:06:20,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1309867686, now seen corresponding path program 1 times [2024-11-22 18:06:20,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211161497] [2024-11-22 18:06:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:20,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:20,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:20,166 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-22 18:06:20,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-22 18:06:20,168 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-22 18:06:20,168 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-22 18:06:20,168 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-22 18:06:20,168 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-22 18:06:20,168 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-22 18:06:20,168 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-22 18:06:20,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 18:06:20,168 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:20,169 WARN L244 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:20,169 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-22 18:06:20,210 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:20,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 328 transitions, 796 flow [2024-11-22 18:06:20,242 INFO L124 PetriNetUnfolderBase]: 42/540 cut-off events. [2024-11-22 18:06:20,243 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-22 18:06:20,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 540 events. 42/540 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1458 event pairs, 0 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 591. Up to 16 conditions per place. [2024-11-22 18:06:20,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 328 transitions, 796 flow [2024-11-22 18:06:20,245 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 131 transitions, 335 flow [2024-11-22 18:06:20,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:20,247 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:20,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-22 18:06:20,249 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:20,249 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:20,249 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:20,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,249 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,249 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:06:20,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1405870699, now seen corresponding path program 1 times [2024-11-22 18:06:20,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530227679] [2024-11-22 18:06:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:20,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:20,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530227679] [2024-11-22 18:06:20,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530227679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:20,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:20,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888740369] [2024-11-22 18:06:20,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:20,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:20,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:20,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:20,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:20,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 328 [2024-11-22 18:06:20,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 131 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:20,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 328 [2024-11-22 18:06:20,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:20,340 INFO L124 PetriNetUnfolderBase]: 17/418 cut-off events. [2024-11-22 18:06:20,340 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-22 18:06:20,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 418 events. 17/418 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1032 event pairs, 8 based on Foata normal form. 9/390 useless extension candidates. Maximal degree in co-relation 465. Up to 62 conditions per place. [2024-11-22 18:06:20,342 INFO L140 encePairwiseOnDemand]: 322/328 looper letters, 17 selfloop transitions, 2 changer transitions 1/127 dead transitions. [2024-11-22 18:06:20,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 127 transitions, 365 flow [2024-11-22 18:06:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 821 transitions. [2024-11-22 18:06:20,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.834349593495935 [2024-11-22 18:06:20,344 INFO L175 Difference]: Start difference. First operand has 144 places, 131 transitions, 335 flow. Second operand 3 states and 821 transitions. [2024-11-22 18:06:20,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 127 transitions, 365 flow [2024-11-22 18:06:20,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 127 transitions, 334 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:20,345 INFO L231 Difference]: Finished difference. Result has 144 places, 126 transitions, 298 flow [2024-11-22 18:06:20,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=144, PETRI_TRANSITIONS=126} [2024-11-22 18:06:20,346 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 0 predicate places. [2024-11-22 18:06:20,346 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 126 transitions, 298 flow [2024-11-22 18:06:20,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,347 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 18:06:20,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:06:20,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2069565951, now seen corresponding path program 1 times [2024-11-22 18:06:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572366361] [2024-11-22 18:06:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:20,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:20,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572366361] [2024-11-22 18:06:20,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572366361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:20,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:20,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:20,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075916550] [2024-11-22 18:06:20,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:20,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:20,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:20,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:20,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:20,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 328 [2024-11-22 18:06:20,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 126 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:20,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 328 [2024-11-22 18:06:20,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:20,429 INFO L124 PetriNetUnfolderBase]: 9/374 cut-off events. [2024-11-22 18:06:20,430 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-22 18:06:20,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 374 events. 9/374 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 776 event pairs, 0 based on Foata normal form. 8/365 useless extension candidates. Maximal degree in co-relation 440. Up to 45 conditions per place. [2024-11-22 18:06:20,431 INFO L140 encePairwiseOnDemand]: 322/328 looper letters, 15 selfloop transitions, 1 changer transitions 24/121 dead transitions. [2024-11-22 18:06:20,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 121 transitions, 324 flow [2024-11-22 18:06:20,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2024-11-22 18:06:20,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7855691056910569 [2024-11-22 18:06:20,432 INFO L175 Difference]: Start difference. First operand has 144 places, 126 transitions, 298 flow. Second operand 3 states and 773 transitions. [2024-11-22 18:06:20,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 121 transitions, 324 flow [2024-11-22 18:06:20,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 121 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:20,434 INFO L231 Difference]: Finished difference. Result has 138 places, 97 transitions, 236 flow [2024-11-22 18:06:20,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=138, PETRI_TRANSITIONS=97} [2024-11-22 18:06:20,434 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -6 predicate places. [2024-11-22 18:06:20,434 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 97 transitions, 236 flow [2024-11-22 18:06:20,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,435 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 18:06:20,435 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:06:20,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,435 INFO L85 PathProgramCache]: Analyzing trace with hash 175791196, now seen corresponding path program 1 times [2024-11-22 18:06:20,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281782377] [2024-11-22 18:06:20,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:20,487 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-22 18:06:20,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:20,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281782377] [2024-11-22 18:06:20,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281782377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:20,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:20,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:20,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272787024] [2024-11-22 18:06:20,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:20,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:20,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:20,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:20,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:20,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 328 [2024-11-22 18:06:20,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 97 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 278.25) internal successors, (1113), 4 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:20,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 328 [2024-11-22 18:06:20,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:20,550 INFO L124 PetriNetUnfolderBase]: 0/181 cut-off events. [2024-11-22 18:06:20,550 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-22 18:06:20,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 181 events. 0/181 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 83 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2024-11-22 18:06:20,551 INFO L140 encePairwiseOnDemand]: 324/328 looper letters, 11 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-22 18:06:20,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 96 transitions, 262 flow [2024-11-22 18:06:20,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1115 transitions. [2024-11-22 18:06:20,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8498475609756098 [2024-11-22 18:06:20,552 INFO L175 Difference]: Start difference. First operand has 138 places, 97 transitions, 236 flow. Second operand 4 states and 1115 transitions. [2024-11-22 18:06:20,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 96 transitions, 262 flow [2024-11-22 18:06:20,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 96 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:20,554 INFO L231 Difference]: Finished difference. Result has 115 places, 96 transitions, 239 flow [2024-11-22 18:06:20,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=115, PETRI_TRANSITIONS=96} [2024-11-22 18:06:20,554 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -29 predicate places. [2024-11-22 18:06:20,554 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 96 transitions, 239 flow [2024-11-22 18:06:20,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.25) internal successors, (1113), 4 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,555 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 18:06:20,555 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:06:20,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,555 INFO L85 PathProgramCache]: Analyzing trace with hash 677209714, now seen corresponding path program 1 times [2024-11-22 18:06:20,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856245208] [2024-11-22 18:06:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:20,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:20,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:20,596 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-22 18:06:20,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-22 18:06:20,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-22 18:06:20,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-22 18:06:20,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-22 18:06:20,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-22 18:06:20,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-22 18:06:20,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-22 18:06:20,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-22 18:06:20,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 18:06:20,597 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:20,597 WARN L244 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:20,597 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-11-22 18:06:20,636 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:20,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 365 transitions, 906 flow [2024-11-22 18:06:20,672 INFO L124 PetriNetUnfolderBase]: 47/604 cut-off events. [2024-11-22 18:06:20,672 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-22 18:06:20,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 604 events. 47/604 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1587 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 666. Up to 18 conditions per place. [2024-11-22 18:06:20,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 365 transitions, 906 flow [2024-11-22 18:06:20,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 138 transitions, 367 flow [2024-11-22 18:06:20,694 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:20,694 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:20,694 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-22 18:06:20,695 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:20,695 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:20,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:20,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,695 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 18:06:20,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1852053963, now seen corresponding path program 1 times [2024-11-22 18:06:20,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957836510] [2024-11-22 18:06:20,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:20,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957836510] [2024-11-22 18:06:20,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957836510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:20,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:20,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:20,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371078954] [2024-11-22 18:06:20,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:20,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:20,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:20,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:20,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:20,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 365 [2024-11-22 18:06:20,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 138 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:20,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 365 [2024-11-22 18:06:20,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:20,795 INFO L124 PetriNetUnfolderBase]: 19/467 cut-off events. [2024-11-22 18:06:20,795 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-22 18:06:20,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 467 events. 19/467 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1173 event pairs, 9 based on Foata normal form. 10/436 useless extension candidates. Maximal degree in co-relation 531. Up to 69 conditions per place. [2024-11-22 18:06:20,797 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 18 selfloop transitions, 2 changer transitions 1/134 dead transitions. [2024-11-22 18:06:20,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 134 transitions, 399 flow [2024-11-22 18:06:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:20,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2024-11-22 18:06:20,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8328767123287671 [2024-11-22 18:06:20,800 INFO L175 Difference]: Start difference. First operand has 153 places, 138 transitions, 367 flow. Second operand 3 states and 912 transitions. [2024-11-22 18:06:20,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 134 transitions, 399 flow [2024-11-22 18:06:20,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 134 transitions, 356 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:20,802 INFO L231 Difference]: Finished difference. Result has 153 places, 133 transitions, 318 flow [2024-11-22 18:06:20,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=153, PETRI_TRANSITIONS=133} [2024-11-22 18:06:20,803 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, 0 predicate places. [2024-11-22 18:06:20,804 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 133 transitions, 318 flow [2024-11-22 18:06:20,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 18:06:20,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 18:06:20,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1391765100, now seen corresponding path program 1 times [2024-11-22 18:06:20,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137874242] [2024-11-22 18:06:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:20,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:20,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137874242] [2024-11-22 18:06:20,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137874242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:20,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:20,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275282697] [2024-11-22 18:06:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:20,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:20,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:20,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:20,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:20,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 365 [2024-11-22 18:06:20,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 133 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:20,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 365 [2024-11-22 18:06:20,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:20,893 INFO L124 PetriNetUnfolderBase]: 10/418 cut-off events. [2024-11-22 18:06:20,894 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-22 18:06:20,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 418 events. 10/418 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 878 event pairs, 0 based on Foata normal form. 9/408 useless extension candidates. Maximal degree in co-relation 494. Up to 50 conditions per place. [2024-11-22 18:06:20,896 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 16 selfloop transitions, 1 changer transitions 24/128 dead transitions. [2024-11-22 18:06:20,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 128 transitions, 346 flow [2024-11-22 18:06:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 858 transitions. [2024-11-22 18:06:20,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7835616438356164 [2024-11-22 18:06:20,897 INFO L175 Difference]: Start difference. First operand has 153 places, 133 transitions, 318 flow. Second operand 3 states and 858 transitions. [2024-11-22 18:06:20,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 128 transitions, 346 flow [2024-11-22 18:06:20,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 128 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:20,900 INFO L231 Difference]: Finished difference. Result has 147 places, 104 transitions, 256 flow [2024-11-22 18:06:20,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=147, PETRI_TRANSITIONS=104} [2024-11-22 18:06:20,900 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -6 predicate places. [2024-11-22 18:06:20,901 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 104 transitions, 256 flow [2024-11-22 18:06:20,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:20,901 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:20,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 18:06:20,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 18:06:20,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:20,902 INFO L85 PathProgramCache]: Analyzing trace with hash -485114169, now seen corresponding path program 1 times [2024-11-22 18:06:20,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:20,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3726957] [2024-11-22 18:06:20,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:20,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-22 18:06:20,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:20,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3726957] [2024-11-22 18:06:20,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3726957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:20,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:20,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:20,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12647094] [2024-11-22 18:06:20,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:20,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:20,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:20,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:20,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:20,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 365 [2024-11-22 18:06:20,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 104 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:20,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:20,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 365 [2024-11-22 18:06:20,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:21,035 INFO L124 PetriNetUnfolderBase]: 0/201 cut-off events. [2024-11-22 18:06:21,039 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-22 18:06:21,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 201 events. 0/201 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 95 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2024-11-22 18:06:21,040 INFO L140 encePairwiseOnDemand]: 361/365 looper letters, 12 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2024-11-22 18:06:21,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 103 transitions, 284 flow [2024-11-22 18:06:21,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:21,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1240 transitions. [2024-11-22 18:06:21,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493150684931506 [2024-11-22 18:06:21,042 INFO L175 Difference]: Start difference. First operand has 147 places, 104 transitions, 256 flow. Second operand 4 states and 1240 transitions. [2024-11-22 18:06:21,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 103 transitions, 284 flow [2024-11-22 18:06:21,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 103 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:21,046 INFO L231 Difference]: Finished difference. Result has 124 places, 103 transitions, 259 flow [2024-11-22 18:06:21,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=124, PETRI_TRANSITIONS=103} [2024-11-22 18:06:21,047 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -29 predicate places. [2024-11-22 18:06:21,047 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 103 transitions, 259 flow [2024-11-22 18:06:21,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,047 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 18:06:21,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 18:06:21,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash 54172266, now seen corresponding path program 1 times [2024-11-22 18:06:21,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891698155] [2024-11-22 18:06:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:21,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:21,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:21,103 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-22 18:06:21,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-22 18:06:21,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-22 18:06:21,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-22 18:06:21,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-22 18:06:21,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-22 18:06:21,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 18:06:21,104 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:21,104 WARN L244 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:21,104 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-11-22 18:06:21,147 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:21,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 402 transitions, 1020 flow [2024-11-22 18:06:21,194 INFO L124 PetriNetUnfolderBase]: 52/668 cut-off events. [2024-11-22 18:06:21,195 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-22 18:06:21,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 668 events. 52/668 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1788 event pairs, 0 based on Foata normal form. 0/582 useless extension candidates. Maximal degree in co-relation 742. Up to 20 conditions per place. [2024-11-22 18:06:21,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 402 transitions, 1020 flow [2024-11-22 18:06:21,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 145 transitions, 401 flow [2024-11-22 18:06:21,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:21,201 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:21,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-22 18:06:21,202 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:21,203 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:21,203 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:21,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-22 18:06:21,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,203 INFO L85 PathProgramCache]: Analyzing trace with hash -280581749, now seen corresponding path program 1 times [2024-11-22 18:06:21,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358762219] [2024-11-22 18:06:21,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:21,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:21,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358762219] [2024-11-22 18:06:21,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358762219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:21,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:21,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102996519] [2024-11-22 18:06:21,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:21,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:21,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:21,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 402 [2024-11-22 18:06:21,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 145 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:21,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 402 [2024-11-22 18:06:21,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:21,337 INFO L124 PetriNetUnfolderBase]: 21/516 cut-off events. [2024-11-22 18:06:21,337 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-22 18:06:21,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 516 events. 21/516 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1328 event pairs, 10 based on Foata normal form. 21/492 useless extension candidates. Maximal degree in co-relation 598. Up to 76 conditions per place. [2024-11-22 18:06:21,339 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 19 selfloop transitions, 2 changer transitions 1/141 dead transitions. [2024-11-22 18:06:21,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 141 transitions, 435 flow [2024-11-22 18:06:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:21,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2024-11-22 18:06:21,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8316749585406302 [2024-11-22 18:06:21,342 INFO L175 Difference]: Start difference. First operand has 162 places, 145 transitions, 401 flow. Second operand 3 states and 1003 transitions. [2024-11-22 18:06:21,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 141 transitions, 435 flow [2024-11-22 18:06:21,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 141 transitions, 378 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:21,344 INFO L231 Difference]: Finished difference. Result has 162 places, 140 transitions, 338 flow [2024-11-22 18:06:21,345 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=162, PETRI_TRANSITIONS=140} [2024-11-22 18:06:21,345 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 0 predicate places. [2024-11-22 18:06:21,345 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 140 transitions, 338 flow [2024-11-22 18:06:21,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,346 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 18:06:21,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-22 18:06:21,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,346 INFO L85 PathProgramCache]: Analyzing trace with hash -802089474, now seen corresponding path program 1 times [2024-11-22 18:06:21,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616643517] [2024-11-22 18:06:21,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:21,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:21,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616643517] [2024-11-22 18:06:21,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616643517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:21,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:21,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:21,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229595631] [2024-11-22 18:06:21,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:21,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:21,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:21,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:21,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:21,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 402 [2024-11-22 18:06:21,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 140 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:21,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 402 [2024-11-22 18:06:21,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:21,462 INFO L124 PetriNetUnfolderBase]: 11/462 cut-off events. [2024-11-22 18:06:21,462 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-22 18:06:21,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 462 events. 11/462 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1010 event pairs, 0 based on Foata normal form. 10/451 useless extension candidates. Maximal degree in co-relation 548. Up to 55 conditions per place. [2024-11-22 18:06:21,464 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 17 selfloop transitions, 1 changer transitions 24/135 dead transitions. [2024-11-22 18:06:21,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 135 transitions, 368 flow [2024-11-22 18:06:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2024-11-22 18:06:21,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7819237147595357 [2024-11-22 18:06:21,466 INFO L175 Difference]: Start difference. First operand has 162 places, 140 transitions, 338 flow. Second operand 3 states and 943 transitions. [2024-11-22 18:06:21,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 135 transitions, 368 flow [2024-11-22 18:06:21,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 135 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:21,468 INFO L231 Difference]: Finished difference. Result has 156 places, 111 transitions, 276 flow [2024-11-22 18:06:21,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=156, PETRI_TRANSITIONS=111} [2024-11-22 18:06:21,469 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, -6 predicate places. [2024-11-22 18:06:21,469 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 111 transitions, 276 flow [2024-11-22 18:06:21,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,469 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 18:06:21,470 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-22 18:06:21,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2083892025, now seen corresponding path program 1 times [2024-11-22 18:06:21,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403647427] [2024-11-22 18:06:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-22 18:06:21,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:21,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403647427] [2024-11-22 18:06:21,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403647427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:21,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:21,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:21,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286709973] [2024-11-22 18:06:21,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:21,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:21,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:21,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:21,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:21,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 402 [2024-11-22 18:06:21,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 111 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 340.75) internal successors, (1363), 4 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:21,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 402 [2024-11-22 18:06:21,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:21,576 INFO L124 PetriNetUnfolderBase]: 0/221 cut-off events. [2024-11-22 18:06:21,577 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-22 18:06:21,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 221 events. 0/221 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 108 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2024-11-22 18:06:21,577 INFO L140 encePairwiseOnDemand]: 398/402 looper letters, 13 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2024-11-22 18:06:21,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 110 transitions, 306 flow [2024-11-22 18:06:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:21,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1365 transitions. [2024-11-22 18:06:21,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2024-11-22 18:06:21,579 INFO L175 Difference]: Start difference. First operand has 156 places, 111 transitions, 276 flow. Second operand 4 states and 1365 transitions. [2024-11-22 18:06:21,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 110 transitions, 306 flow [2024-11-22 18:06:21,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 110 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:21,581 INFO L231 Difference]: Finished difference. Result has 133 places, 110 transitions, 279 flow [2024-11-22 18:06:21,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=133, PETRI_TRANSITIONS=110} [2024-11-22 18:06:21,582 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, -29 predicate places. [2024-11-22 18:06:21,582 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 110 transitions, 279 flow [2024-11-22 18:06:21,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 340.75) internal successors, (1363), 4 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,583 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 18:06:21,583 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-22 18:06:21,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1686447086, now seen corresponding path program 1 times [2024-11-22 18:06:21,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566813486] [2024-11-22 18:06:21,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:21,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:21,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:21,617 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:21,617 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-22 18:06:21,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-22 18:06:21,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-22 18:06:21,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-22 18:06:21,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-22 18:06:21,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-22 18:06:21,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-22 18:06:21,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 18:06:21,619 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:21,619 WARN L244 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:21,619 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-11-22 18:06:21,674 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:21,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 439 transitions, 1138 flow [2024-11-22 18:06:21,723 INFO L124 PetriNetUnfolderBase]: 57/732 cut-off events. [2024-11-22 18:06:21,723 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-22 18:06:21,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 732 events. 57/732 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1939 event pairs, 0 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 819. Up to 22 conditions per place. [2024-11-22 18:06:21,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 439 transitions, 1138 flow [2024-11-22 18:06:21,727 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 152 transitions, 437 flow [2024-11-22 18:06:21,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:21,728 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:21,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-22 18:06:21,729 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:21,729 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:21,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:21,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,729 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,729 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 18:06:21,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,730 INFO L85 PathProgramCache]: Analyzing trace with hash -697069141, now seen corresponding path program 1 times [2024-11-22 18:06:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160844124] [2024-11-22 18:06:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:21,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160844124] [2024-11-22 18:06:21,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160844124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:21,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:21,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:21,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511128580] [2024-11-22 18:06:21,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:21,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:21,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:21,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:21,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:21,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 439 [2024-11-22 18:06:21,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 152 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:21,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 439 [2024-11-22 18:06:21,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:21,839 INFO L124 PetriNetUnfolderBase]: 23/565 cut-off events. [2024-11-22 18:06:21,839 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-22 18:06:21,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 565 events. 23/565 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1441 event pairs, 11 based on Foata normal form. 23/539 useless extension candidates. Maximal degree in co-relation 666. Up to 83 conditions per place. [2024-11-22 18:06:21,842 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 20 selfloop transitions, 2 changer transitions 1/148 dead transitions. [2024-11-22 18:06:21,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 148 transitions, 473 flow [2024-11-22 18:06:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1094 transitions. [2024-11-22 18:06:21,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8306757782839788 [2024-11-22 18:06:21,844 INFO L175 Difference]: Start difference. First operand has 171 places, 152 transitions, 437 flow. Second operand 3 states and 1094 transitions. [2024-11-22 18:06:21,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 148 transitions, 473 flow [2024-11-22 18:06:21,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 148 transitions, 400 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:21,847 INFO L231 Difference]: Finished difference. Result has 171 places, 147 transitions, 358 flow [2024-11-22 18:06:21,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=171, PETRI_TRANSITIONS=147} [2024-11-22 18:06:21,847 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, 0 predicate places. [2024-11-22 18:06:21,848 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 147 transitions, 358 flow [2024-11-22 18:06:21,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-22 18:06:21,848 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 18:06:21,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,849 INFO L85 PathProgramCache]: Analyzing trace with hash -217030475, now seen corresponding path program 1 times [2024-11-22 18:06:21,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821995191] [2024-11-22 18:06:21,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:21,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:21,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:21,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821995191] [2024-11-22 18:06:21,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821995191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:21,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:21,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:21,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169874960] [2024-11-22 18:06:21,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:21,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:21,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:21,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:21,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 439 [2024-11-22 18:06:21,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 147 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:21,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 439 [2024-11-22 18:06:21,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:21,961 INFO L124 PetriNetUnfolderBase]: 12/506 cut-off events. [2024-11-22 18:06:21,961 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-22 18:06:21,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 506 events. 12/506 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1067 event pairs, 0 based on Foata normal form. 11/494 useless extension candidates. Maximal degree in co-relation 602. Up to 60 conditions per place. [2024-11-22 18:06:21,963 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 18 selfloop transitions, 1 changer transitions 24/142 dead transitions. [2024-11-22 18:06:21,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 142 transitions, 390 flow [2024-11-22 18:06:21,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:21,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2024-11-22 18:06:21,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7805618830675778 [2024-11-22 18:06:21,965 INFO L175 Difference]: Start difference. First operand has 171 places, 147 transitions, 358 flow. Second operand 3 states and 1028 transitions. [2024-11-22 18:06:21,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 142 transitions, 390 flow [2024-11-22 18:06:21,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 142 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:21,967 INFO L231 Difference]: Finished difference. Result has 165 places, 118 transitions, 296 flow [2024-11-22 18:06:21,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=165, PETRI_TRANSITIONS=118} [2024-11-22 18:06:21,967 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, -6 predicate places. [2024-11-22 18:06:21,967 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 118 transitions, 296 flow [2024-11-22 18:06:21,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:21,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:21,968 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:21,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-22 18:06:21,968 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 18:06:21,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 928645458, now seen corresponding path program 1 times [2024-11-22 18:06:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:21,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562963960] [2024-11-22 18:06:21,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:21,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2024-11-22 18:06:22,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:22,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562963960] [2024-11-22 18:06:22,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562963960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:22,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:22,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:22,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632753437] [2024-11-22 18:06:22,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:22,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:22,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:22,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 439 [2024-11-22 18:06:22,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 118 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:22,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 439 [2024-11-22 18:06:22,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:22,079 INFO L124 PetriNetUnfolderBase]: 0/241 cut-off events. [2024-11-22 18:06:22,079 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-22 18:06:22,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 241 events. 0/241 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 120 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2024-11-22 18:06:22,079 INFO L140 encePairwiseOnDemand]: 435/439 looper letters, 14 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-11-22 18:06:22,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 117 transitions, 328 flow [2024-11-22 18:06:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1490 transitions. [2024-11-22 18:06:22,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8485193621867881 [2024-11-22 18:06:22,082 INFO L175 Difference]: Start difference. First operand has 165 places, 118 transitions, 296 flow. Second operand 4 states and 1490 transitions. [2024-11-22 18:06:22,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 117 transitions, 328 flow [2024-11-22 18:06:22,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 117 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:22,083 INFO L231 Difference]: Finished difference. Result has 142 places, 117 transitions, 299 flow [2024-11-22 18:06:22,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=142, PETRI_TRANSITIONS=117} [2024-11-22 18:06:22,084 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, -29 predicate places. [2024-11-22 18:06:22,084 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 117 transitions, 299 flow [2024-11-22 18:06:22,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:22,085 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:22,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-22 18:06:22,085 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 18:06:22,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash 234376286, now seen corresponding path program 1 times [2024-11-22 18:06:22,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:22,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397121670] [2024-11-22 18:06:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:22,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:22,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:22,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:22,122 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-22 18:06:22,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-22 18:06:22,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-22 18:06:22,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-22 18:06:22,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-22 18:06:22,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-22 18:06:22,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-22 18:06:22,123 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:22,123 WARN L244 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:22,123 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-11-22 18:06:22,168 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:22,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 475 places, 476 transitions, 1260 flow [2024-11-22 18:06:22,239 INFO L124 PetriNetUnfolderBase]: 62/796 cut-off events. [2024-11-22 18:06:22,239 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-22 18:06:22,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 796 events. 62/796 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2148 event pairs, 0 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 897. Up to 24 conditions per place. [2024-11-22 18:06:22,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 475 places, 476 transitions, 1260 flow [2024-11-22 18:06:22,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 159 transitions, 475 flow [2024-11-22 18:06:22,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:22,243 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:22,243 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-22 18:06:22,244 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:22,244 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:22,244 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:22,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:22,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:22,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:06:22,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash 602591787, now seen corresponding path program 1 times [2024-11-22 18:06:22,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:22,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922111020] [2024-11-22 18:06:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:22,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:22,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922111020] [2024-11-22 18:06:22,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922111020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:22,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:22,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:22,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389237926] [2024-11-22 18:06:22,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:22,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:22,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:22,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:22,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:22,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 476 [2024-11-22 18:06:22,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 159 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:22,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 476 [2024-11-22 18:06:22,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:22,368 INFO L124 PetriNetUnfolderBase]: 25/614 cut-off events. [2024-11-22 18:06:22,368 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-22 18:06:22,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 614 events. 25/614 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1624 event pairs, 12 based on Foata normal form. 25/586 useless extension candidates. Maximal degree in co-relation 735. Up to 90 conditions per place. [2024-11-22 18:06:22,371 INFO L140 encePairwiseOnDemand]: 470/476 looper letters, 21 selfloop transitions, 2 changer transitions 1/155 dead transitions. [2024-11-22 18:06:22,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 155 transitions, 513 flow [2024-11-22 18:06:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1185 transitions. [2024-11-22 18:06:22,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8298319327731093 [2024-11-22 18:06:22,373 INFO L175 Difference]: Start difference. First operand has 180 places, 159 transitions, 475 flow. Second operand 3 states and 1185 transitions. [2024-11-22 18:06:22,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 155 transitions, 513 flow [2024-11-22 18:06:22,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 155 transitions, 422 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:22,375 INFO L231 Difference]: Finished difference. Result has 180 places, 154 transitions, 378 flow [2024-11-22 18:06:22,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=180, PETRI_TRANSITIONS=154} [2024-11-22 18:06:22,375 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, 0 predicate places. [2024-11-22 18:06:22,376 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 154 transitions, 378 flow [2024-11-22 18:06:22,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:22,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:22,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-22 18:06:22,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:06:22,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1148025199, now seen corresponding path program 1 times [2024-11-22 18:06:22,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:22,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741280804] [2024-11-22 18:06:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:22,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:22,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:22,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741280804] [2024-11-22 18:06:22,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741280804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:22,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:22,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394941819] [2024-11-22 18:06:22,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:22,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:22,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:22,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:22,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:22,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 476 [2024-11-22 18:06:22,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 154 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:22,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 476 [2024-11-22 18:06:22,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:22,484 INFO L124 PetriNetUnfolderBase]: 13/550 cut-off events. [2024-11-22 18:06:22,484 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-22 18:06:22,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 550 events. 13/550 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1225 event pairs, 0 based on Foata normal form. 12/537 useless extension candidates. Maximal degree in co-relation 656. Up to 65 conditions per place. [2024-11-22 18:06:22,487 INFO L140 encePairwiseOnDemand]: 470/476 looper letters, 19 selfloop transitions, 1 changer transitions 24/149 dead transitions. [2024-11-22 18:06:22,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 149 transitions, 412 flow [2024-11-22 18:06:22,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:22,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2024-11-22 18:06:22,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794117647058824 [2024-11-22 18:06:22,488 INFO L175 Difference]: Start difference. First operand has 180 places, 154 transitions, 378 flow. Second operand 3 states and 1113 transitions. [2024-11-22 18:06:22,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 149 transitions, 412 flow [2024-11-22 18:06:22,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 149 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:22,490 INFO L231 Difference]: Finished difference. Result has 174 places, 125 transitions, 316 flow [2024-11-22 18:06:22,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=174, PETRI_TRANSITIONS=125} [2024-11-22 18:06:22,491 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -6 predicate places. [2024-11-22 18:06:22,491 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 125 transitions, 316 flow [2024-11-22 18:06:22,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:22,491 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:22,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-22 18:06:22,491 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:06:22,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:22,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1081638734, now seen corresponding path program 1 times [2024-11-22 18:06:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:22,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926741234] [2024-11-22 18:06:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:22,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2024-11-22 18:06:22,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:22,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926741234] [2024-11-22 18:06:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926741234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:22,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634454427] [2024-11-22 18:06:22,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:22,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:22,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:22,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:22,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:22,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 476 [2024-11-22 18:06:22,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 125 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:22,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 476 [2024-11-22 18:06:22,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:22,666 INFO L124 PetriNetUnfolderBase]: 0/261 cut-off events. [2024-11-22 18:06:22,666 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-22 18:06:22,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 261 events. 0/261 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 131 event pairs, 0 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2024-11-22 18:06:22,667 INFO L140 encePairwiseOnDemand]: 472/476 looper letters, 15 selfloop transitions, 3 changer transitions 0/124 dead transitions. [2024-11-22 18:06:22,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 124 transitions, 350 flow [2024-11-22 18:06:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1615 transitions. [2024-11-22 18:06:22,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8482142857142857 [2024-11-22 18:06:22,669 INFO L175 Difference]: Start difference. First operand has 174 places, 125 transitions, 316 flow. Second operand 4 states and 1615 transitions. [2024-11-22 18:06:22,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 124 transitions, 350 flow [2024-11-22 18:06:22,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 124 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:22,672 INFO L231 Difference]: Finished difference. Result has 151 places, 124 transitions, 319 flow [2024-11-22 18:06:22,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=151, PETRI_TRANSITIONS=124} [2024-11-22 18:06:22,672 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -29 predicate places. [2024-11-22 18:06:22,672 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 124 transitions, 319 flow [2024-11-22 18:06:22,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:22,673 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:22,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-22 18:06:22,673 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:06:22,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:22,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1634999578, now seen corresponding path program 1 times [2024-11-22 18:06:22,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:22,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616487227] [2024-11-22 18:06:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:22,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:22,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:22,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:22,736 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:22,736 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-22 18:06:22,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-22 18:06:22,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-22 18:06:22,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-22 18:06:22,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-11-22 18:06:22,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-22 18:06:22,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-22 18:06:22,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-22 18:06:22,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-22 18:06:22,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-22 18:06:22,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-22 18:06:22,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-22 18:06:22,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-22 18:06:22,739 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:22,739 WARN L244 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:22,739 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-11-22 18:06:22,804 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:22,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 512 places, 513 transitions, 1386 flow [2024-11-22 18:06:22,886 INFO L124 PetriNetUnfolderBase]: 67/860 cut-off events. [2024-11-22 18:06:22,886 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-11-22 18:06:22,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 860 events. 67/860 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2340 event pairs, 0 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 976. Up to 26 conditions per place. [2024-11-22 18:06:22,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 512 places, 513 transitions, 1386 flow [2024-11-22 18:06:22,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 166 transitions, 515 flow [2024-11-22 18:06:22,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:22,893 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:22,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-22 18:06:22,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:22,894 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:22,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:22,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:22,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:22,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 18:06:22,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:22,894 INFO L85 PathProgramCache]: Analyzing trace with hash -676566261, now seen corresponding path program 1 times [2024-11-22 18:06:22,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:22,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297621602] [2024-11-22 18:06:22,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:22,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:22,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297621602] [2024-11-22 18:06:22,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297621602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:22,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:22,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:22,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852027673] [2024-11-22 18:06:22,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:22,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:22,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:22,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:22,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:22,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 513 [2024-11-22 18:06:22,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 166 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:22,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:22,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 513 [2024-11-22 18:06:22,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:23,037 INFO L124 PetriNetUnfolderBase]: 27/663 cut-off events. [2024-11-22 18:06:23,038 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-22 18:06:23,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 663 events. 27/663 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1768 event pairs, 13 based on Foata normal form. 27/633 useless extension candidates. Maximal degree in co-relation 805. Up to 97 conditions per place. [2024-11-22 18:06:23,042 INFO L140 encePairwiseOnDemand]: 507/513 looper letters, 22 selfloop transitions, 2 changer transitions 1/162 dead transitions. [2024-11-22 18:06:23,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 162 transitions, 555 flow [2024-11-22 18:06:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1276 transitions. [2024-11-22 18:06:23,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8291098115659519 [2024-11-22 18:06:23,043 INFO L175 Difference]: Start difference. First operand has 189 places, 166 transitions, 515 flow. Second operand 3 states and 1276 transitions. [2024-11-22 18:06:23,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 162 transitions, 555 flow [2024-11-22 18:06:23,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 162 transitions, 444 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:23,046 INFO L231 Difference]: Finished difference. Result has 189 places, 161 transitions, 398 flow [2024-11-22 18:06:23,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=189, PETRI_TRANSITIONS=161} [2024-11-22 18:06:23,047 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 0 predicate places. [2024-11-22 18:06:23,047 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 161 transitions, 398 flow [2024-11-22 18:06:23,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:23,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:23,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-22 18:06:23,047 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 18:06:23,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash 699893650, now seen corresponding path program 1 times [2024-11-22 18:06:23,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:23,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579973699] [2024-11-22 18:06:23,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:23,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:23,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579973699] [2024-11-22 18:06:23,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579973699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:23,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:23,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:23,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397363843] [2024-11-22 18:06:23,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:23,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:23,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:23,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:23,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:23,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 513 [2024-11-22 18:06:23,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 161 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:23,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 513 [2024-11-22 18:06:23,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:23,173 INFO L124 PetriNetUnfolderBase]: 14/594 cut-off events. [2024-11-22 18:06:23,173 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-22 18:06:23,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 594 events. 14/594 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1334 event pairs, 0 based on Foata normal form. 13/580 useless extension candidates. Maximal degree in co-relation 710. Up to 70 conditions per place. [2024-11-22 18:06:23,177 INFO L140 encePairwiseOnDemand]: 507/513 looper letters, 20 selfloop transitions, 1 changer transitions 24/156 dead transitions. [2024-11-22 18:06:23,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 156 transitions, 434 flow [2024-11-22 18:06:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:23,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1198 transitions. [2024-11-22 18:06:23,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7784275503573749 [2024-11-22 18:06:23,178 INFO L175 Difference]: Start difference. First operand has 189 places, 161 transitions, 398 flow. Second operand 3 states and 1198 transitions. [2024-11-22 18:06:23,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 156 transitions, 434 flow [2024-11-22 18:06:23,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 156 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:23,180 INFO L231 Difference]: Finished difference. Result has 183 places, 132 transitions, 336 flow [2024-11-22 18:06:23,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=183, PETRI_TRANSITIONS=132} [2024-11-22 18:06:23,181 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -6 predicate places. [2024-11-22 18:06:23,181 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 132 transitions, 336 flow [2024-11-22 18:06:23,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:23,182 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:23,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-22 18:06:23,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 18:06:23,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:23,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1283705081, now seen corresponding path program 1 times [2024-11-22 18:06:23,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:23,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178974596] [2024-11-22 18:06:23,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:23,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2024-11-22 18:06:23,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:23,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178974596] [2024-11-22 18:06:23,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178974596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:23,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:23,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:23,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287536871] [2024-11-22 18:06:23,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:23,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:23,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:23,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:23,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:23,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 513 [2024-11-22 18:06:23,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 132 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 434.5) internal successors, (1738), 4 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:23,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 513 [2024-11-22 18:06:23,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:23,316 INFO L124 PetriNetUnfolderBase]: 0/281 cut-off events. [2024-11-22 18:06:23,317 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-22 18:06:23,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 281 events. 0/281 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 144 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2024-11-22 18:06:23,317 INFO L140 encePairwiseOnDemand]: 509/513 looper letters, 16 selfloop transitions, 3 changer transitions 0/131 dead transitions. [2024-11-22 18:06:23,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 131 transitions, 372 flow [2024-11-22 18:06:23,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:23,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:23,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1740 transitions. [2024-11-22 18:06:23,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2024-11-22 18:06:23,319 INFO L175 Difference]: Start difference. First operand has 183 places, 132 transitions, 336 flow. Second operand 4 states and 1740 transitions. [2024-11-22 18:06:23,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 131 transitions, 372 flow [2024-11-22 18:06:23,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 131 transitions, 371 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:23,321 INFO L231 Difference]: Finished difference. Result has 160 places, 131 transitions, 339 flow [2024-11-22 18:06:23,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=339, PETRI_PLACES=160, PETRI_TRANSITIONS=131} [2024-11-22 18:06:23,321 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -29 predicate places. [2024-11-22 18:06:23,322 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 131 transitions, 339 flow [2024-11-22 18:06:23,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 434.5) internal successors, (1738), 4 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:23,322 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:23,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-22 18:06:23,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 18:06:23,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:23,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1514053758, now seen corresponding path program 1 times [2024-11-22 18:06:23,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:23,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895876] [2024-11-22 18:06:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:23,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:23,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:23,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:23,380 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:23,380 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-22 18:06:23,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-22 18:06:23,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-22 18:06:23,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-22 18:06:23,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-22 18:06:23,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-22 18:06:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-22 18:06:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-22 18:06:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-22 18:06:23,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-22 18:06:23,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-22 18:06:23,382 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:23,382 WARN L244 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:23,382 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-11-22 18:06:23,435 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:23,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 549 places, 550 transitions, 1516 flow [2024-11-22 18:06:23,518 INFO L124 PetriNetUnfolderBase]: 72/924 cut-off events. [2024-11-22 18:06:23,518 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-11-22 18:06:23,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 924 events. 72/924 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2635 event pairs, 0 based on Foata normal form. 0/806 useless extension candidates. Maximal degree in co-relation 1056. Up to 28 conditions per place. [2024-11-22 18:06:23,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 549 places, 550 transitions, 1516 flow [2024-11-22 18:06:23,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 173 transitions, 557 flow [2024-11-22 18:06:23,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:23,523 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:23,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-22 18:06:23,524 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:23,524 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:23,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:23,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:23,524 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:23,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-22 18:06:23,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:23,525 INFO L85 PathProgramCache]: Analyzing trace with hash -239575989, now seen corresponding path program 1 times [2024-11-22 18:06:23,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:23,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251650281] [2024-11-22 18:06:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:23,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:23,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:23,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251650281] [2024-11-22 18:06:23,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251650281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:23,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:23,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:23,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216578749] [2024-11-22 18:06:23,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:23,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:23,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:23,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:23,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:23,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 550 [2024-11-22 18:06:23,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 173 transitions, 557 flow. Second operand has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:23,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 550 [2024-11-22 18:06:23,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:23,672 INFO L124 PetriNetUnfolderBase]: 29/712 cut-off events. [2024-11-22 18:06:23,672 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-22 18:06:23,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 712 events. 29/712 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1912 event pairs, 14 based on Foata normal form. 29/680 useless extension candidates. Maximal degree in co-relation 876. Up to 104 conditions per place. [2024-11-22 18:06:23,677 INFO L140 encePairwiseOnDemand]: 544/550 looper letters, 23 selfloop transitions, 2 changer transitions 1/169 dead transitions. [2024-11-22 18:06:23,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 169 transitions, 599 flow [2024-11-22 18:06:23,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:23,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2024-11-22 18:06:23,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8284848484848485 [2024-11-22 18:06:23,679 INFO L175 Difference]: Start difference. First operand has 198 places, 173 transitions, 557 flow. Second operand 3 states and 1367 transitions. [2024-11-22 18:06:23,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 169 transitions, 599 flow [2024-11-22 18:06:23,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 169 transitions, 466 flow, removed 66 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:23,682 INFO L231 Difference]: Finished difference. Result has 198 places, 168 transitions, 418 flow [2024-11-22 18:06:23,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=198, PETRI_TRANSITIONS=168} [2024-11-22 18:06:23,683 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 0 predicate places. [2024-11-22 18:06:23,683 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 168 transitions, 418 flow [2024-11-22 18:06:23,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:23,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:23,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-22 18:06:23,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-22 18:06:23,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:23,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1031758776, now seen corresponding path program 1 times [2024-11-22 18:06:23,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:23,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531221087] [2024-11-22 18:06:23,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:23,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:23,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:23,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531221087] [2024-11-22 18:06:23,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531221087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:23,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:23,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:23,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571233140] [2024-11-22 18:06:23,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:23,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:23,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 550 [2024-11-22 18:06:23,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 168 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:23,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 550 [2024-11-22 18:06:23,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:23,805 INFO L124 PetriNetUnfolderBase]: 15/638 cut-off events. [2024-11-22 18:06:23,805 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-22 18:06:23,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 638 events. 15/638 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1442 event pairs, 0 based on Foata normal form. 14/623 useless extension candidates. Maximal degree in co-relation 764. Up to 75 conditions per place. [2024-11-22 18:06:23,809 INFO L140 encePairwiseOnDemand]: 544/550 looper letters, 21 selfloop transitions, 1 changer transitions 24/163 dead transitions. [2024-11-22 18:06:23,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 163 transitions, 456 flow [2024-11-22 18:06:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1283 transitions. [2024-11-22 18:06:23,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7775757575757576 [2024-11-22 18:06:23,812 INFO L175 Difference]: Start difference. First operand has 198 places, 168 transitions, 418 flow. Second operand 3 states and 1283 transitions. [2024-11-22 18:06:23,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 163 transitions, 456 flow [2024-11-22 18:06:23,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 163 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:23,814 INFO L231 Difference]: Finished difference. Result has 192 places, 139 transitions, 356 flow [2024-11-22 18:06:23,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=192, PETRI_TRANSITIONS=139} [2024-11-22 18:06:23,815 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -6 predicate places. [2024-11-22 18:06:23,815 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 139 transitions, 356 flow [2024-11-22 18:06:23,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:23,815 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:23,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-22 18:06:23,816 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-22 18:06:23,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:23,816 INFO L85 PathProgramCache]: Analyzing trace with hash 999381447, now seen corresponding path program 1 times [2024-11-22 18:06:23,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:23,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616422159] [2024-11-22 18:06:23,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:23,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2024-11-22 18:06:23,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:23,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616422159] [2024-11-22 18:06:23,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616422159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:23,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:23,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:23,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534657092] [2024-11-22 18:06:23,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:23,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:23,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:23,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:23,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:23,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 550 [2024-11-22 18:06:23,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 139 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 465.75) internal successors, (1863), 4 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:23,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 550 [2024-11-22 18:06:23,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:23,980 INFO L124 PetriNetUnfolderBase]: 0/301 cut-off events. [2024-11-22 18:06:23,980 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-22 18:06:23,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 301 events. 0/301 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 156 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2024-11-22 18:06:23,981 INFO L140 encePairwiseOnDemand]: 546/550 looper letters, 17 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-22 18:06:23,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 138 transitions, 394 flow [2024-11-22 18:06:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1865 transitions. [2024-11-22 18:06:23,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8477272727272728 [2024-11-22 18:06:23,983 INFO L175 Difference]: Start difference. First operand has 192 places, 139 transitions, 356 flow. Second operand 4 states and 1865 transitions. [2024-11-22 18:06:23,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 138 transitions, 394 flow [2024-11-22 18:06:23,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 138 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:23,985 INFO L231 Difference]: Finished difference. Result has 169 places, 138 transitions, 359 flow [2024-11-22 18:06:23,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=169, PETRI_TRANSITIONS=138} [2024-11-22 18:06:23,986 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -29 predicate places. [2024-11-22 18:06:23,986 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 138 transitions, 359 flow [2024-11-22 18:06:23,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 465.75) internal successors, (1863), 4 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:23,986 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:23,986 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:23,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-22 18:06:23,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-22 18:06:23,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash -875193098, now seen corresponding path program 1 times [2024-11-22 18:06:23,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:23,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339960683] [2024-11-22 18:06:23,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:23,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:24,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:24,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:24,048 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:24,048 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-22 18:06:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-22 18:06:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-22 18:06:24,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-22 18:06:24,051 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:24,051 WARN L244 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:24,051 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-11-22 18:06:24,110 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:24,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 587 transitions, 1650 flow [2024-11-22 18:06:24,189 INFO L124 PetriNetUnfolderBase]: 77/988 cut-off events. [2024-11-22 18:06:24,190 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-11-22 18:06:24,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 988 events. 77/988 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2731 event pairs, 0 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 1137. Up to 30 conditions per place. [2024-11-22 18:06:24,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 587 transitions, 1650 flow [2024-11-22 18:06:24,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 180 transitions, 601 flow [2024-11-22 18:06:24,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:24,197 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:24,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-22 18:06:24,198 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:24,198 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:24,198 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:24,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:24,198 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:24,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-22 18:06:24,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:24,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1913562603, now seen corresponding path program 1 times [2024-11-22 18:06:24,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:24,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570554879] [2024-11-22 18:06:24,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:24,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:24,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:24,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570554879] [2024-11-22 18:06:24,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570554879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:24,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:24,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:24,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407637385] [2024-11-22 18:06:24,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:24,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:24,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:24,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:24,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:24,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 587 [2024-11-22 18:06:24,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 180 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:24,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:24,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 587 [2024-11-22 18:06:24,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:24,395 INFO L124 PetriNetUnfolderBase]: 31/761 cut-off events. [2024-11-22 18:06:24,395 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-22 18:06:24,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 761 events. 31/761 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2054 event pairs, 15 based on Foata normal form. 31/727 useless extension candidates. Maximal degree in co-relation 948. Up to 111 conditions per place. [2024-11-22 18:06:24,399 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 24 selfloop transitions, 2 changer transitions 1/176 dead transitions. [2024-11-22 18:06:24,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 176 transitions, 645 flow [2024-11-22 18:06:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:24,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2024-11-22 18:06:24,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.82793867120954 [2024-11-22 18:06:24,401 INFO L175 Difference]: Start difference. First operand has 207 places, 180 transitions, 601 flow. Second operand 3 states and 1458 transitions. [2024-11-22 18:06:24,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 176 transitions, 645 flow [2024-11-22 18:06:24,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 176 transitions, 488 flow, removed 78 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:24,405 INFO L231 Difference]: Finished difference. Result has 207 places, 175 transitions, 438 flow [2024-11-22 18:06:24,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=175} [2024-11-22 18:06:24,405 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 0 predicate places. [2024-11-22 18:06:24,405 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 175 transitions, 438 flow [2024-11-22 18:06:24,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:24,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:24,406 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:24,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-22 18:06:24,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-22 18:06:24,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:24,407 INFO L85 PathProgramCache]: Analyzing trace with hash -152429821, now seen corresponding path program 1 times [2024-11-22 18:06:24,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:24,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422013392] [2024-11-22 18:06:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:24,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:24,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:24,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422013392] [2024-11-22 18:06:24,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422013392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:24,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:24,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:24,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448919205] [2024-11-22 18:06:24,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:24,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:24,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:24,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:24,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:24,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 587 [2024-11-22 18:06:24,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 175 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:24,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:24,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 587 [2024-11-22 18:06:24,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:24,585 INFO L124 PetriNetUnfolderBase]: 16/682 cut-off events. [2024-11-22 18:06:24,586 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-22 18:06:24,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 682 events. 16/682 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1550 event pairs, 0 based on Foata normal form. 15/666 useless extension candidates. Maximal degree in co-relation 818. Up to 80 conditions per place. [2024-11-22 18:06:24,590 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 22 selfloop transitions, 1 changer transitions 24/170 dead transitions. [2024-11-22 18:06:24,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 170 transitions, 478 flow [2024-11-22 18:06:24,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:24,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-11-22 18:06:24,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7768313458262351 [2024-11-22 18:06:24,592 INFO L175 Difference]: Start difference. First operand has 207 places, 175 transitions, 438 flow. Second operand 3 states and 1368 transitions. [2024-11-22 18:06:24,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 170 transitions, 478 flow [2024-11-22 18:06:24,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 170 transitions, 474 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:24,595 INFO L231 Difference]: Finished difference. Result has 201 places, 146 transitions, 376 flow [2024-11-22 18:06:24,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=201, PETRI_TRANSITIONS=146} [2024-11-22 18:06:24,595 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -6 predicate places. [2024-11-22 18:06:24,595 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 146 transitions, 376 flow [2024-11-22 18:06:24,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:24,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:24,596 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:24,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-22 18:06:24,596 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-22 18:06:24,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1571525308, now seen corresponding path program 1 times [2024-11-22 18:06:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86605821] [2024-11-22 18:06:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:24,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1386 trivial. 0 not checked. [2024-11-22 18:06:24,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:24,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86605821] [2024-11-22 18:06:24,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86605821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:24,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:24,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861363351] [2024-11-22 18:06:24,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:24,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:24,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:24,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:24,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:24,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 587 [2024-11-22 18:06:24,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 146 transitions, 376 flow. Second operand has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:24,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:24,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 587 [2024-11-22 18:06:24,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:24,778 INFO L124 PetriNetUnfolderBase]: 0/321 cut-off events. [2024-11-22 18:06:24,778 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-22 18:06:24,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 321 events. 0/321 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 168 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2024-11-22 18:06:24,779 INFO L140 encePairwiseOnDemand]: 583/587 looper letters, 18 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2024-11-22 18:06:24,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 145 transitions, 416 flow [2024-11-22 18:06:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1990 transitions. [2024-11-22 18:06:24,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8475298126064736 [2024-11-22 18:06:24,780 INFO L175 Difference]: Start difference. First operand has 201 places, 146 transitions, 376 flow. Second operand 4 states and 1990 transitions. [2024-11-22 18:06:24,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 145 transitions, 416 flow [2024-11-22 18:06:24,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 145 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:24,782 INFO L231 Difference]: Finished difference. Result has 178 places, 145 transitions, 379 flow [2024-11-22 18:06:24,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=178, PETRI_TRANSITIONS=145} [2024-11-22 18:06:24,783 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -29 predicate places. [2024-11-22 18:06:24,783 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 145 transitions, 379 flow [2024-11-22 18:06:24,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:24,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:24,784 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:24,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-22 18:06:24,784 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-22 18:06:24,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1419189974, now seen corresponding path program 1 times [2024-11-22 18:06:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:24,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981317917] [2024-11-22 18:06:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:24,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:24,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:24,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:24,845 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:24,845 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-22 18:06:24,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-22 18:06:24,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-22 18:06:24,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-22 18:06:24,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-22 18:06:24,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-22 18:06:24,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-22 18:06:24,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-22 18:06:24,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-22 18:06:24,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-22 18:06:24,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-22 18:06:24,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-22 18:06:24,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-22 18:06:24,847 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:24,848 WARN L244 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:24,848 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-11-22 18:06:24,902 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:24,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 623 places, 624 transitions, 1788 flow [2024-11-22 18:06:25,010 INFO L124 PetriNetUnfolderBase]: 82/1052 cut-off events. [2024-11-22 18:06:25,011 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-11-22 18:06:25,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 1052 events. 82/1052 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3000 event pairs, 0 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1219. Up to 32 conditions per place. [2024-11-22 18:06:25,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 623 places, 624 transitions, 1788 flow [2024-11-22 18:06:25,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 187 transitions, 647 flow [2024-11-22 18:06:25,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:25,016 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:25,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-22 18:06:25,017 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:25,017 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:25,017 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:25,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:25,017 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:25,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 18:06:25,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:25,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1487882219, now seen corresponding path program 1 times [2024-11-22 18:06:25,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086161770] [2024-11-22 18:06:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:25,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:25,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:25,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086161770] [2024-11-22 18:06:25,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086161770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:25,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:25,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:25,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066036008] [2024-11-22 18:06:25,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:25,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:25,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:25,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:25,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:25,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 624 [2024-11-22 18:06:25,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 187 transitions, 647 flow. Second operand has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:25,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 624 [2024-11-22 18:06:25,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:25,188 INFO L124 PetriNetUnfolderBase]: 33/810 cut-off events. [2024-11-22 18:06:25,188 INFO L125 PetriNetUnfolderBase]: For 801/801 co-relation queries the response was YES. [2024-11-22 18:06:25,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 810 events. 33/810 cut-off events. For 801/801 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2194 event pairs, 16 based on Foata normal form. 33/774 useless extension candidates. Maximal degree in co-relation 1021. Up to 118 conditions per place. [2024-11-22 18:06:25,194 INFO L140 encePairwiseOnDemand]: 618/624 looper letters, 25 selfloop transitions, 2 changer transitions 1/183 dead transitions. [2024-11-22 18:06:25,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 183 transitions, 693 flow [2024-11-22 18:06:25,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:25,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1549 transitions. [2024-11-22 18:06:25,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8274572649572649 [2024-11-22 18:06:25,196 INFO L175 Difference]: Start difference. First operand has 216 places, 187 transitions, 647 flow. Second operand 3 states and 1549 transitions. [2024-11-22 18:06:25,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 183 transitions, 693 flow [2024-11-22 18:06:25,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 183 transitions, 510 flow, removed 91 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:25,201 INFO L231 Difference]: Finished difference. Result has 216 places, 182 transitions, 458 flow [2024-11-22 18:06:25,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=216, PETRI_TRANSITIONS=182} [2024-11-22 18:06:25,201 INFO L277 CegarLoopForPetriNet]: 216 programPoint places, 0 predicate places. [2024-11-22 18:06:25,201 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 182 transitions, 458 flow [2024-11-22 18:06:25,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:25,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:25,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-22 18:06:25,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 18:06:25,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:25,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1442295155, now seen corresponding path program 1 times [2024-11-22 18:06:25,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:25,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924151674] [2024-11-22 18:06:25,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:25,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:25,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:25,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:25,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924151674] [2024-11-22 18:06:25,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924151674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:25,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:25,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:25,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208407552] [2024-11-22 18:06:25,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:25,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:25,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:25,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:25,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:25,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 624 [2024-11-22 18:06:25,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 182 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:25,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 624 [2024-11-22 18:06:25,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:25,340 INFO L124 PetriNetUnfolderBase]: 17/726 cut-off events. [2024-11-22 18:06:25,340 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-22 18:06:25,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 726 events. 17/726 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1658 event pairs, 0 based on Foata normal form. 16/709 useless extension candidates. Maximal degree in co-relation 872. Up to 85 conditions per place. [2024-11-22 18:06:25,344 INFO L140 encePairwiseOnDemand]: 618/624 looper letters, 23 selfloop transitions, 1 changer transitions 24/177 dead transitions. [2024-11-22 18:06:25,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 177 transitions, 500 flow [2024-11-22 18:06:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:25,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1453 transitions. [2024-11-22 18:06:25,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7761752136752137 [2024-11-22 18:06:25,345 INFO L175 Difference]: Start difference. First operand has 216 places, 182 transitions, 458 flow. Second operand 3 states and 1453 transitions. [2024-11-22 18:06:25,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 177 transitions, 500 flow [2024-11-22 18:06:25,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 177 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:25,348 INFO L231 Difference]: Finished difference. Result has 210 places, 153 transitions, 396 flow [2024-11-22 18:06:25,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=210, PETRI_TRANSITIONS=153} [2024-11-22 18:06:25,348 INFO L277 CegarLoopForPetriNet]: 216 programPoint places, -6 predicate places. [2024-11-22 18:06:25,349 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 153 transitions, 396 flow [2024-11-22 18:06:25,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:25,349 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:25,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-22 18:06:25,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 18:06:25,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:25,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1531097976, now seen corresponding path program 1 times [2024-11-22 18:06:25,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:25,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085027897] [2024-11-22 18:06:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:25,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2024-11-22 18:06:25,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085027897] [2024-11-22 18:06:25,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085027897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:25,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:25,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:25,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074909642] [2024-11-22 18:06:25,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:25,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:25,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:25,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:25,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 523 out of 624 [2024-11-22 18:06:25,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 153 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:25,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 523 of 624 [2024-11-22 18:06:25,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:25,519 INFO L124 PetriNetUnfolderBase]: 0/341 cut-off events. [2024-11-22 18:06:25,520 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-22 18:06:25,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 341 events. 0/341 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 180 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2024-11-22 18:06:25,520 INFO L140 encePairwiseOnDemand]: 620/624 looper letters, 19 selfloop transitions, 3 changer transitions 0/152 dead transitions. [2024-11-22 18:06:25,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 152 transitions, 438 flow [2024-11-22 18:06:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:25,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:25,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2115 transitions. [2024-11-22 18:06:25,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8473557692307693 [2024-11-22 18:06:25,522 INFO L175 Difference]: Start difference. First operand has 210 places, 153 transitions, 396 flow. Second operand 4 states and 2115 transitions. [2024-11-22 18:06:25,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 152 transitions, 438 flow [2024-11-22 18:06:25,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 152 transitions, 437 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:25,524 INFO L231 Difference]: Finished difference. Result has 187 places, 152 transitions, 399 flow [2024-11-22 18:06:25,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=399, PETRI_PLACES=187, PETRI_TRANSITIONS=152} [2024-11-22 18:06:25,524 INFO L277 CegarLoopForPetriNet]: 216 programPoint places, -29 predicate places. [2024-11-22 18:06:25,525 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 152 transitions, 399 flow [2024-11-22 18:06:25,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:25,525 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:25,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-22 18:06:25,525 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 18:06:25,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:25,526 INFO L85 PathProgramCache]: Analyzing trace with hash -148836734, now seen corresponding path program 1 times [2024-11-22 18:06:25,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:25,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437281970] [2024-11-22 18:06:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:25,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:25,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:25,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:25,625 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-11-22 18:06:25,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-22 18:06:25,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-22 18:06:25,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-22 18:06:25,626 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:25,627 WARN L244 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:25,627 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-11-22 18:06:25,692 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:25,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 660 places, 661 transitions, 1930 flow [2024-11-22 18:06:25,793 INFO L124 PetriNetUnfolderBase]: 87/1116 cut-off events. [2024-11-22 18:06:25,793 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2024-11-22 18:06:25,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 1116 events. 87/1116 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3259 event pairs, 0 based on Foata normal form. 0/974 useless extension candidates. Maximal degree in co-relation 1302. Up to 34 conditions per place. [2024-11-22 18:06:25,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 660 places, 661 transitions, 1930 flow [2024-11-22 18:06:25,801 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 194 transitions, 695 flow [2024-11-22 18:06:25,802 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:25,802 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:25,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-22 18:06:25,803 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:25,803 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:25,803 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:25,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:25,803 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:25,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 18:06:25,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:25,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1516617141, now seen corresponding path program 1 times [2024-11-22 18:06:25,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:25,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532757208] [2024-11-22 18:06:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:25,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:25,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532757208] [2024-11-22 18:06:25,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532757208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:25,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:25,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:25,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227223001] [2024-11-22 18:06:25,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:25,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:25,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:25,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:25,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:25,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 536 out of 661 [2024-11-22 18:06:25,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 194 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:25,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 536 of 661 [2024-11-22 18:06:25,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:25,985 INFO L124 PetriNetUnfolderBase]: 35/859 cut-off events. [2024-11-22 18:06:25,986 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-22 18:06:25,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 859 events. 35/859 cut-off events. For 953/953 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2341 event pairs, 17 based on Foata normal form. 35/821 useless extension candidates. Maximal degree in co-relation 1095. Up to 125 conditions per place. [2024-11-22 18:06:25,991 INFO L140 encePairwiseOnDemand]: 655/661 looper letters, 26 selfloop transitions, 2 changer transitions 1/190 dead transitions. [2024-11-22 18:06:25,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 190 transitions, 743 flow [2024-11-22 18:06:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1640 transitions. [2024-11-22 18:06:25,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.827029752899647 [2024-11-22 18:06:25,993 INFO L175 Difference]: Start difference. First operand has 225 places, 194 transitions, 695 flow. Second operand 3 states and 1640 transitions. [2024-11-22 18:06:25,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 190 transitions, 743 flow [2024-11-22 18:06:25,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 190 transitions, 532 flow, removed 105 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:25,996 INFO L231 Difference]: Finished difference. Result has 225 places, 189 transitions, 478 flow [2024-11-22 18:06:25,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=225, PETRI_TRANSITIONS=189} [2024-11-22 18:06:25,997 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 0 predicate places. [2024-11-22 18:06:25,997 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 189 transitions, 478 flow [2024-11-22 18:06:25,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:25,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:25,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:25,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-22 18:06:25,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 18:06:25,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:25,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1520966408, now seen corresponding path program 1 times [2024-11-22 18:06:25,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:25,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97474620] [2024-11-22 18:06:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:25,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:26,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:26,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97474620] [2024-11-22 18:06:26,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97474620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:26,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:26,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055699568] [2024-11-22 18:06:26,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:26,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:26,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:26,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 661 [2024-11-22 18:06:26,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 189 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:26,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:26,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 661 [2024-11-22 18:06:26,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:26,177 INFO L124 PetriNetUnfolderBase]: 18/770 cut-off events. [2024-11-22 18:06:26,177 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-22 18:06:26,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 770 events. 18/770 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1749 event pairs, 0 based on Foata normal form. 17/752 useless extension candidates. Maximal degree in co-relation 926. Up to 90 conditions per place. [2024-11-22 18:06:26,179 INFO L140 encePairwiseOnDemand]: 655/661 looper letters, 24 selfloop transitions, 1 changer transitions 24/184 dead transitions. [2024-11-22 18:06:26,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 184 transitions, 522 flow [2024-11-22 18:06:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:26,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1538 transitions. [2024-11-22 18:06:26,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7755925365607665 [2024-11-22 18:06:26,181 INFO L175 Difference]: Start difference. First operand has 225 places, 189 transitions, 478 flow. Second operand 3 states and 1538 transitions. [2024-11-22 18:06:26,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 184 transitions, 522 flow [2024-11-22 18:06:26,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 184 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:26,183 INFO L231 Difference]: Finished difference. Result has 219 places, 160 transitions, 416 flow [2024-11-22 18:06:26,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=219, PETRI_TRANSITIONS=160} [2024-11-22 18:06:26,183 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, -6 predicate places. [2024-11-22 18:06:26,183 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 160 transitions, 416 flow [2024-11-22 18:06:26,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:26,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:26,184 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:26,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-22 18:06:26,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 18:06:26,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:26,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1921524837, now seen corresponding path program 1 times [2024-11-22 18:06:26,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:26,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512233802] [2024-11-22 18:06:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:26,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1808 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1808 trivial. 0 not checked. [2024-11-22 18:06:26,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:26,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512233802] [2024-11-22 18:06:26,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512233802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:26,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:26,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:26,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905870842] [2024-11-22 18:06:26,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:26,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:26,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:26,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:26,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 661 [2024-11-22 18:06:26,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 160 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:26,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:26,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 661 [2024-11-22 18:06:26,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:26,339 INFO L124 PetriNetUnfolderBase]: 0/361 cut-off events. [2024-11-22 18:06:26,339 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-22 18:06:26,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 361 events. 0/361 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 192 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2024-11-22 18:06:26,340 INFO L140 encePairwiseOnDemand]: 657/661 looper letters, 20 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2024-11-22 18:06:26,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 159 transitions, 460 flow [2024-11-22 18:06:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2240 transitions. [2024-11-22 18:06:26,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8472012102874432 [2024-11-22 18:06:26,342 INFO L175 Difference]: Start difference. First operand has 219 places, 160 transitions, 416 flow. Second operand 4 states and 2240 transitions. [2024-11-22 18:06:26,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 159 transitions, 460 flow [2024-11-22 18:06:26,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 159 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:26,344 INFO L231 Difference]: Finished difference. Result has 196 places, 159 transitions, 419 flow [2024-11-22 18:06:26,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=419, PETRI_PLACES=196, PETRI_TRANSITIONS=159} [2024-11-22 18:06:26,344 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, -29 predicate places. [2024-11-22 18:06:26,344 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 159 transitions, 419 flow [2024-11-22 18:06:26,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:26,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:26,345 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:26,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-22 18:06:26,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 18:06:26,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1484335782, now seen corresponding path program 1 times [2024-11-22 18:06:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:26,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37750882] [2024-11-22 18:06:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:26,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:26,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:26,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:26,431 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:26,431 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-22 18:06:26,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2024-11-22 18:06:26,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-22 18:06:26,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-22 18:06:26,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-22 18:06:26,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-22 18:06:26,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-22 18:06:26,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-22 18:06:26,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-22 18:06:26,432 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:26,433 WARN L244 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:26,433 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-11-22 18:06:26,499 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:26,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 697 places, 698 transitions, 2076 flow [2024-11-22 18:06:26,621 INFO L124 PetriNetUnfolderBase]: 92/1180 cut-off events. [2024-11-22 18:06:26,622 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-22 18:06:26,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 1180 events. 92/1180 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3256 event pairs, 0 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1386. Up to 36 conditions per place. [2024-11-22 18:06:26,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 697 places, 698 transitions, 2076 flow [2024-11-22 18:06:26,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 201 transitions, 745 flow [2024-11-22 18:06:26,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:26,632 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:26,632 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-22 18:06:26,632 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:26,632 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:26,632 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:26,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:26,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:26,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-22 18:06:26,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1489999115, now seen corresponding path program 1 times [2024-11-22 18:06:26,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:26,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947878134] [2024-11-22 18:06:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:26,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:26,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:26,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:26,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947878134] [2024-11-22 18:06:26,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947878134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:26,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:26,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:26,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957706476] [2024-11-22 18:06:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:26,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:26,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:26,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:26,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:26,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 698 [2024-11-22 18:06:26,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 201 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:26,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:26,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 698 [2024-11-22 18:06:26,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:26,912 INFO L124 PetriNetUnfolderBase]: 37/908 cut-off events. [2024-11-22 18:06:26,912 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-22 18:06:26,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 908 events. 37/908 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2442 event pairs, 18 based on Foata normal form. 19/850 useless extension candidates. Maximal degree in co-relation 1170. Up to 132 conditions per place. [2024-11-22 18:06:26,919 INFO L140 encePairwiseOnDemand]: 692/698 looper letters, 27 selfloop transitions, 2 changer transitions 1/197 dead transitions. [2024-11-22 18:06:26,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 197 transitions, 795 flow [2024-11-22 18:06:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:26,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1731 transitions. [2024-11-22 18:06:26,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.826647564469914 [2024-11-22 18:06:26,921 INFO L175 Difference]: Start difference. First operand has 234 places, 201 transitions, 745 flow. Second operand 3 states and 1731 transitions. [2024-11-22 18:06:26,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 197 transitions, 795 flow [2024-11-22 18:06:26,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 197 transitions, 554 flow, removed 120 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:26,926 INFO L231 Difference]: Finished difference. Result has 234 places, 196 transitions, 498 flow [2024-11-22 18:06:26,926 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=234, PETRI_TRANSITIONS=196} [2024-11-22 18:06:26,927 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, 0 predicate places. [2024-11-22 18:06:26,927 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 196 transitions, 498 flow [2024-11-22 18:06:26,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:26,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:26,927 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:26,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-22 18:06:26,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-22 18:06:26,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash 83583938, now seen corresponding path program 1 times [2024-11-22 18:06:26,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:26,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298105103] [2024-11-22 18:06:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:26,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:26,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298105103] [2024-11-22 18:06:26,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298105103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:26,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:26,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:26,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257106436] [2024-11-22 18:06:26,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:26,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:26,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:26,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:27,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 530 out of 698 [2024-11-22 18:06:27,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 196 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:27,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:27,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 530 of 698 [2024-11-22 18:06:27,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:27,147 INFO L124 PetriNetUnfolderBase]: 19/814 cut-off events. [2024-11-22 18:06:27,147 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-22 18:06:27,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 814 events. 19/814 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1834 event pairs, 0 based on Foata normal form. 18/795 useless extension candidates. Maximal degree in co-relation 980. Up to 95 conditions per place. [2024-11-22 18:06:27,152 INFO L140 encePairwiseOnDemand]: 692/698 looper letters, 25 selfloop transitions, 1 changer transitions 24/191 dead transitions. [2024-11-22 18:06:27,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 191 transitions, 544 flow [2024-11-22 18:06:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:27,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1623 transitions. [2024-11-22 18:06:27,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7750716332378224 [2024-11-22 18:06:27,156 INFO L175 Difference]: Start difference. First operand has 234 places, 196 transitions, 498 flow. Second operand 3 states and 1623 transitions. [2024-11-22 18:06:27,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 191 transitions, 544 flow [2024-11-22 18:06:27,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 191 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:27,159 INFO L231 Difference]: Finished difference. Result has 228 places, 167 transitions, 436 flow [2024-11-22 18:06:27,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=228, PETRI_TRANSITIONS=167} [2024-11-22 18:06:27,160 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, -6 predicate places. [2024-11-22 18:06:27,160 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 167 transitions, 436 flow [2024-11-22 18:06:27,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:27,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:27,161 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:27,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-22 18:06:27,161 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-22 18:06:27,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:27,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1395062075, now seen corresponding path program 1 times [2024-11-22 18:06:27,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:27,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192469634] [2024-11-22 18:06:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:27,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2040 trivial. 0 not checked. [2024-11-22 18:06:27,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:27,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192469634] [2024-11-22 18:06:27,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192469634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:27,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:27,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:27,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94457983] [2024-11-22 18:06:27,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:27,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:27,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:27,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 698 [2024-11-22 18:06:27,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 167 transitions, 436 flow. Second operand has 4 states, 4 states have (on average 590.75) internal successors, (2363), 4 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:27,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:27,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 698 [2024-11-22 18:06:27,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:27,373 INFO L124 PetriNetUnfolderBase]: 0/381 cut-off events. [2024-11-22 18:06:27,373 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-22 18:06:27,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 381 events. 0/381 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 203 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2024-11-22 18:06:27,374 INFO L140 encePairwiseOnDemand]: 694/698 looper letters, 21 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2024-11-22 18:06:27,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 166 transitions, 482 flow [2024-11-22 18:06:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2365 transitions. [2024-11-22 18:06:27,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8470630372492837 [2024-11-22 18:06:27,378 INFO L175 Difference]: Start difference. First operand has 228 places, 167 transitions, 436 flow. Second operand 4 states and 2365 transitions. [2024-11-22 18:06:27,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 166 transitions, 482 flow [2024-11-22 18:06:27,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 166 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:27,381 INFO L231 Difference]: Finished difference. Result has 205 places, 166 transitions, 439 flow [2024-11-22 18:06:27,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=439, PETRI_PLACES=205, PETRI_TRANSITIONS=166} [2024-11-22 18:06:27,381 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, -29 predicate places. [2024-11-22 18:06:27,381 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 166 transitions, 439 flow [2024-11-22 18:06:27,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 590.75) internal successors, (2363), 4 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:27,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:27,382 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:27,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-22 18:06:27,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-22 18:06:27,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:27,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1642505026, now seen corresponding path program 1 times [2024-11-22 18:06:27,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:27,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967234836] [2024-11-22 18:06:27,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:27,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:27,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:27,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:27,479 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:27,479 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-22 18:06:27,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-22 18:06:27,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-22 18:06:27,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-22 18:06:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-22 18:06:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-22 18:06:27,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-22 18:06:27,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-22 18:06:27,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-22 18:06:27,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-22 18:06:27,482 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:27,482 WARN L244 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:27,482 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-11-22 18:06:27,564 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:27,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 734 places, 735 transitions, 2226 flow [2024-11-22 18:06:27,721 INFO L124 PetriNetUnfolderBase]: 97/1244 cut-off events. [2024-11-22 18:06:27,721 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-22 18:06:27,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 1244 events. 97/1244 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3589 event pairs, 0 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 1471. Up to 38 conditions per place. [2024-11-22 18:06:27,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 734 places, 735 transitions, 2226 flow [2024-11-22 18:06:27,727 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 208 transitions, 797 flow [2024-11-22 18:06:27,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:27,728 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:27,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-22 18:06:27,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:27,729 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:27,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:27,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:27,729 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:27,729 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 18:06:27,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:27,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1917796395, now seen corresponding path program 1 times [2024-11-22 18:06:27,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:27,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365802642] [2024-11-22 18:06:27,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:27,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:27,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:27,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365802642] [2024-11-22 18:06:27,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365802642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:27,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:27,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:27,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457167543] [2024-11-22 18:06:27,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:27,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:27,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:27,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:27,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:27,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 735 [2024-11-22 18:06:27,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 208 transitions, 797 flow. Second operand has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:27,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:27,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 735 [2024-11-22 18:06:27,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:27,934 INFO L124 PetriNetUnfolderBase]: 39/957 cut-off events. [2024-11-22 18:06:27,934 INFO L125 PetriNetUnfolderBase]: For 1312/1312 co-relation queries the response was YES. [2024-11-22 18:06:27,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1345 conditions, 957 events. 39/957 cut-off events. For 1312/1312 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2576 event pairs, 19 based on Foata normal form. 20/896 useless extension candidates. Maximal degree in co-relation 1246. Up to 139 conditions per place. [2024-11-22 18:06:27,941 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 28 selfloop transitions, 2 changer transitions 1/204 dead transitions. [2024-11-22 18:06:27,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 204 transitions, 849 flow [2024-11-22 18:06:27,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1822 transitions. [2024-11-22 18:06:27,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8263038548752835 [2024-11-22 18:06:27,943 INFO L175 Difference]: Start difference. First operand has 243 places, 208 transitions, 797 flow. Second operand 3 states and 1822 transitions. [2024-11-22 18:06:27,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 204 transitions, 849 flow [2024-11-22 18:06:27,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 204 transitions, 576 flow, removed 136 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:27,949 INFO L231 Difference]: Finished difference. Result has 243 places, 203 transitions, 518 flow [2024-11-22 18:06:27,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=243, PETRI_TRANSITIONS=203} [2024-11-22 18:06:27,949 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 0 predicate places. [2024-11-22 18:06:27,949 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 203 transitions, 518 flow [2024-11-22 18:06:27,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:27,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:27,950 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:27,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-22 18:06:27,950 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 18:06:27,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:27,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1425115041, now seen corresponding path program 1 times [2024-11-22 18:06:27,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:27,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769958753] [2024-11-22 18:06:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:27,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:27,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:27,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769958753] [2024-11-22 18:06:27,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769958753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:27,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:27,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:27,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157696626] [2024-11-22 18:06:27,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:27,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:27,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:27,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:27,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:28,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 735 [2024-11-22 18:06:28,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 203 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:28,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:28,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 735 [2024-11-22 18:06:28,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:28,115 INFO L124 PetriNetUnfolderBase]: 20/858 cut-off events. [2024-11-22 18:06:28,115 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-22 18:06:28,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 858 events. 20/858 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1933 event pairs, 0 based on Foata normal form. 19/838 useless extension candidates. Maximal degree in co-relation 1034. Up to 100 conditions per place. [2024-11-22 18:06:28,120 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 26 selfloop transitions, 1 changer transitions 24/198 dead transitions. [2024-11-22 18:06:28,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 198 transitions, 566 flow [2024-11-22 18:06:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1708 transitions. [2024-11-22 18:06:28,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7746031746031746 [2024-11-22 18:06:28,122 INFO L175 Difference]: Start difference. First operand has 243 places, 203 transitions, 518 flow. Second operand 3 states and 1708 transitions. [2024-11-22 18:06:28,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 198 transitions, 566 flow [2024-11-22 18:06:28,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 198 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:28,124 INFO L231 Difference]: Finished difference. Result has 237 places, 174 transitions, 456 flow [2024-11-22 18:06:28,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=237, PETRI_TRANSITIONS=174} [2024-11-22 18:06:28,124 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -6 predicate places. [2024-11-22 18:06:28,125 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 174 transitions, 456 flow [2024-11-22 18:06:28,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:28,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:28,125 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:28,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-22 18:06:28,125 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 18:06:28,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1247993706, now seen corresponding path program 1 times [2024-11-22 18:06:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:28,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386194818] [2024-11-22 18:06:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:28,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2286 trivial. 0 not checked. [2024-11-22 18:06:28,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:28,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386194818] [2024-11-22 18:06:28,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386194818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:28,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:28,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:28,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223161593] [2024-11-22 18:06:28,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:28,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:28,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:28,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:28,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:28,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 616 out of 735 [2024-11-22 18:06:28,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 174 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:28,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:28,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 616 of 735 [2024-11-22 18:06:28,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:28,328 INFO L124 PetriNetUnfolderBase]: 0/401 cut-off events. [2024-11-22 18:06:28,328 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-11-22 18:06:28,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 401 events. 0/401 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 216 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2024-11-22 18:06:28,329 INFO L140 encePairwiseOnDemand]: 731/735 looper letters, 22 selfloop transitions, 3 changer transitions 0/173 dead transitions. [2024-11-22 18:06:28,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 173 transitions, 504 flow [2024-11-22 18:06:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:28,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2490 transitions. [2024-11-22 18:06:28,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8469387755102041 [2024-11-22 18:06:28,332 INFO L175 Difference]: Start difference. First operand has 237 places, 174 transitions, 456 flow. Second operand 4 states and 2490 transitions. [2024-11-22 18:06:28,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 173 transitions, 504 flow [2024-11-22 18:06:28,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 173 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:28,334 INFO L231 Difference]: Finished difference. Result has 214 places, 173 transitions, 459 flow [2024-11-22 18:06:28,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=459, PETRI_PLACES=214, PETRI_TRANSITIONS=173} [2024-11-22 18:06:28,334 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -29 predicate places. [2024-11-22 18:06:28,334 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 173 transitions, 459 flow [2024-11-22 18:06:28,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:28,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:28,335 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:28,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-22 18:06:28,335 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 18:06:28,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash -14037490, now seen corresponding path program 1 times [2024-11-22 18:06:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:28,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216839436] [2024-11-22 18:06:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:28,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:28,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:28,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:28,394 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-22 18:06:28,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-22 18:06:28,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-22 18:06:28,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-22 18:06:28,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-22 18:06:28,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-22 18:06:28,397 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:28,397 WARN L244 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:28,397 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-11-22 18:06:28,463 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:28,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 771 places, 772 transitions, 2380 flow [2024-11-22 18:06:28,627 INFO L124 PetriNetUnfolderBase]: 102/1308 cut-off events. [2024-11-22 18:06:28,627 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2024-11-22 18:06:28,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 1308 events. 102/1308 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3777 event pairs, 0 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 1557. Up to 40 conditions per place. [2024-11-22 18:06:28,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 771 places, 772 transitions, 2380 flow [2024-11-22 18:06:28,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 215 transitions, 851 flow [2024-11-22 18:06:28,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:28,634 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:28,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-22 18:06:28,635 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:28,635 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:28,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:28,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:28,635 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:28,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-22 18:06:28,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:28,635 INFO L85 PathProgramCache]: Analyzing trace with hash -233225301, now seen corresponding path program 1 times [2024-11-22 18:06:28,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:28,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474877349] [2024-11-22 18:06:28,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:28,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:28,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:28,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474877349] [2024-11-22 18:06:28,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474877349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:28,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:28,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:28,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415761784] [2024-11-22 18:06:28,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:28,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:28,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:28,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:28,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:28,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 772 [2024-11-22 18:06:28,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 215 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:28,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:28,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 772 [2024-11-22 18:06:28,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:28,845 INFO L124 PetriNetUnfolderBase]: 41/1006 cut-off events. [2024-11-22 18:06:28,845 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-11-22 18:06:28,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 1006 events. 41/1006 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2590 event pairs, 20 based on Foata normal form. 21/942 useless extension candidates. Maximal degree in co-relation 1323. Up to 146 conditions per place. [2024-11-22 18:06:28,852 INFO L140 encePairwiseOnDemand]: 766/772 looper letters, 29 selfloop transitions, 2 changer transitions 1/211 dead transitions. [2024-11-22 18:06:28,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 211 transitions, 905 flow [2024-11-22 18:06:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1913 transitions. [2024-11-22 18:06:28,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825993091537133 [2024-11-22 18:06:28,854 INFO L175 Difference]: Start difference. First operand has 252 places, 215 transitions, 851 flow. Second operand 3 states and 1913 transitions. [2024-11-22 18:06:28,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 211 transitions, 905 flow [2024-11-22 18:06:28,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 211 transitions, 598 flow, removed 153 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:28,859 INFO L231 Difference]: Finished difference. Result has 252 places, 210 transitions, 538 flow [2024-11-22 18:06:28,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=252, PETRI_TRANSITIONS=210} [2024-11-22 18:06:28,859 INFO L277 CegarLoopForPetriNet]: 252 programPoint places, 0 predicate places. [2024-11-22 18:06:28,859 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 210 transitions, 538 flow [2024-11-22 18:06:28,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:28,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:28,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:28,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-22 18:06:28,860 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-22 18:06:28,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1250592421, now seen corresponding path program 1 times [2024-11-22 18:06:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:28,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952645161] [2024-11-22 18:06:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:28,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:28,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952645161] [2024-11-22 18:06:28,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952645161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:28,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:28,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:28,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057860590] [2024-11-22 18:06:28,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:28,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:28,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:28,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:28,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:28,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 772 [2024-11-22 18:06:28,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 210 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:28,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:28,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 772 [2024-11-22 18:06:28,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:29,047 INFO L124 PetriNetUnfolderBase]: 21/902 cut-off events. [2024-11-22 18:06:29,047 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-22 18:06:29,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 902 events. 21/902 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1934 event pairs, 0 based on Foata normal form. 20/881 useless extension candidates. Maximal degree in co-relation 1088. Up to 105 conditions per place. [2024-11-22 18:06:29,053 INFO L140 encePairwiseOnDemand]: 766/772 looper letters, 27 selfloop transitions, 1 changer transitions 24/205 dead transitions. [2024-11-22 18:06:29,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 205 transitions, 588 flow [2024-11-22 18:06:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2024-11-22 18:06:29,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7741796200345423 [2024-11-22 18:06:29,055 INFO L175 Difference]: Start difference. First operand has 252 places, 210 transitions, 538 flow. Second operand 3 states and 1793 transitions. [2024-11-22 18:06:29,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 205 transitions, 588 flow [2024-11-22 18:06:29,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 205 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:29,057 INFO L231 Difference]: Finished difference. Result has 246 places, 181 transitions, 476 flow [2024-11-22 18:06:29,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=246, PETRI_TRANSITIONS=181} [2024-11-22 18:06:29,057 INFO L277 CegarLoopForPetriNet]: 252 programPoint places, -6 predicate places. [2024-11-22 18:06:29,058 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 181 transitions, 476 flow [2024-11-22 18:06:29,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:29,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:29,058 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:29,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-22 18:06:29,058 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-22 18:06:29,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:29,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1633672366, now seen corresponding path program 1 times [2024-11-22 18:06:29,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:29,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255010852] [2024-11-22 18:06:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:29,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2546 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2546 trivial. 0 not checked. [2024-11-22 18:06:29,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:29,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255010852] [2024-11-22 18:06:29,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255010852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:29,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:29,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:29,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241466808] [2024-11-22 18:06:29,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:29,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:29,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:29,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:29,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:29,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 772 [2024-11-22 18:06:29,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 181 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:29,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:29,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 772 [2024-11-22 18:06:29,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:29,247 INFO L124 PetriNetUnfolderBase]: 0/421 cut-off events. [2024-11-22 18:06:29,247 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-22 18:06:29,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 421 events. 0/421 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 228 event pairs, 0 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2024-11-22 18:06:29,248 INFO L140 encePairwiseOnDemand]: 768/772 looper letters, 23 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2024-11-22 18:06:29,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 180 transitions, 526 flow [2024-11-22 18:06:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2615 transitions. [2024-11-22 18:06:29,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8468264248704663 [2024-11-22 18:06:29,250 INFO L175 Difference]: Start difference. First operand has 246 places, 181 transitions, 476 flow. Second operand 4 states and 2615 transitions. [2024-11-22 18:06:29,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 180 transitions, 526 flow [2024-11-22 18:06:29,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 180 transitions, 525 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:29,252 INFO L231 Difference]: Finished difference. Result has 223 places, 180 transitions, 479 flow [2024-11-22 18:06:29,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=479, PETRI_PLACES=223, PETRI_TRANSITIONS=180} [2024-11-22 18:06:29,253 INFO L277 CegarLoopForPetriNet]: 252 programPoint places, -29 predicate places. [2024-11-22 18:06:29,253 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 180 transitions, 479 flow [2024-11-22 18:06:29,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:29,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:29,254 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:29,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-22 18:06:29,254 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-22 18:06:29,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1018285398, now seen corresponding path program 1 times [2024-11-22 18:06:29,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:29,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421432353] [2024-11-22 18:06:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:29,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:29,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:29,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:29,319 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-22 18:06:29,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-22 18:06:29,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-22 18:06:29,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-22 18:06:29,320 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:29,321 WARN L244 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:29,321 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-11-22 18:06:29,391 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:29,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 808 places, 809 transitions, 2538 flow [2024-11-22 18:06:29,566 INFO L124 PetriNetUnfolderBase]: 107/1372 cut-off events. [2024-11-22 18:06:29,566 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2024-11-22 18:06:29,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 1372 events. 107/1372 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3911 event pairs, 0 based on Foata normal form. 0/1198 useless extension candidates. Maximal degree in co-relation 1644. Up to 42 conditions per place. [2024-11-22 18:06:29,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 808 places, 809 transitions, 2538 flow [2024-11-22 18:06:29,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 222 transitions, 907 flow [2024-11-22 18:06:29,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:29,576 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:29,576 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-22 18:06:29,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:29,577 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:29,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:29,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:29,577 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:29,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-22 18:06:29,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:29,577 INFO L85 PathProgramCache]: Analyzing trace with hash -668098677, now seen corresponding path program 1 times [2024-11-22 18:06:29,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:29,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187105658] [2024-11-22 18:06:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:29,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:29,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:29,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187105658] [2024-11-22 18:06:29,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187105658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:29,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:29,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:29,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349817595] [2024-11-22 18:06:29,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:29,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:29,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:29,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:29,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:29,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 656 out of 809 [2024-11-22 18:06:29,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 222 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:29,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:29,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 656 of 809 [2024-11-22 18:06:29,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:29,817 INFO L124 PetriNetUnfolderBase]: 43/1055 cut-off events. [2024-11-22 18:06:29,817 INFO L125 PetriNetUnfolderBase]: For 1751/1751 co-relation queries the response was YES. [2024-11-22 18:06:29,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1055 events. 43/1055 cut-off events. For 1751/1751 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2856 event pairs, 21 based on Foata normal form. 22/988 useless extension candidates. Maximal degree in co-relation 1401. Up to 153 conditions per place. [2024-11-22 18:06:29,824 INFO L140 encePairwiseOnDemand]: 803/809 looper letters, 30 selfloop transitions, 2 changer transitions 1/218 dead transitions. [2024-11-22 18:06:29,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 218 transitions, 963 flow [2024-11-22 18:06:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:29,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2004 transitions. [2024-11-22 18:06:29,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8257107540173053 [2024-11-22 18:06:29,829 INFO L175 Difference]: Start difference. First operand has 261 places, 222 transitions, 907 flow. Second operand 3 states and 2004 transitions. [2024-11-22 18:06:29,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 218 transitions, 963 flow [2024-11-22 18:06:29,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 218 transitions, 620 flow, removed 171 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:29,834 INFO L231 Difference]: Finished difference. Result has 261 places, 217 transitions, 558 flow [2024-11-22 18:06:29,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=261, PETRI_TRANSITIONS=217} [2024-11-22 18:06:29,835 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, 0 predicate places. [2024-11-22 18:06:29,835 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 217 transitions, 558 flow [2024-11-22 18:06:29,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:29,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:29,835 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:29,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-22 18:06:29,836 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-22 18:06:29,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash -439983922, now seen corresponding path program 1 times [2024-11-22 18:06:29,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:29,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657521718] [2024-11-22 18:06:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:29,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:29,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:29,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657521718] [2024-11-22 18:06:29,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657521718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:29,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:29,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:29,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477362135] [2024-11-22 18:06:29,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:29,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:29,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:29,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:29,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:29,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 809 [2024-11-22 18:06:29,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 217 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:29,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:29,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 809 [2024-11-22 18:06:29,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:30,026 INFO L124 PetriNetUnfolderBase]: 22/946 cut-off events. [2024-11-22 18:06:30,026 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-22 18:06:30,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 946 events. 22/946 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2143 event pairs, 0 based on Foata normal form. 21/924 useless extension candidates. Maximal degree in co-relation 1142. Up to 110 conditions per place. [2024-11-22 18:06:30,033 INFO L140 encePairwiseOnDemand]: 803/809 looper letters, 28 selfloop transitions, 1 changer transitions 24/212 dead transitions. [2024-11-22 18:06:30,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 212 transitions, 610 flow [2024-11-22 18:06:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1878 transitions. [2024-11-22 18:06:30,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7737948084054388 [2024-11-22 18:06:30,034 INFO L175 Difference]: Start difference. First operand has 261 places, 217 transitions, 558 flow. Second operand 3 states and 1878 transitions. [2024-11-22 18:06:30,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 212 transitions, 610 flow [2024-11-22 18:06:30,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 212 transitions, 606 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:30,037 INFO L231 Difference]: Finished difference. Result has 255 places, 188 transitions, 496 flow [2024-11-22 18:06:30,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=255, PETRI_TRANSITIONS=188} [2024-11-22 18:06:30,037 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -6 predicate places. [2024-11-22 18:06:30,037 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 188 transitions, 496 flow [2024-11-22 18:06:30,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:30,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:30,038 INFO L204 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:30,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-22 18:06:30,038 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-22 18:06:30,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:30,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1772233043, now seen corresponding path program 1 times [2024-11-22 18:06:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:30,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266415721] [2024-11-22 18:06:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:30,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2820 trivial. 0 not checked. [2024-11-22 18:06:30,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:30,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266415721] [2024-11-22 18:06:30,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266415721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:30,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:30,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819251232] [2024-11-22 18:06:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:30,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:30,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 809 [2024-11-22 18:06:30,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 188 transitions, 496 flow. Second operand has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:30,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:30,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 809 [2024-11-22 18:06:30,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:30,237 INFO L124 PetriNetUnfolderBase]: 0/441 cut-off events. [2024-11-22 18:06:30,237 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-22 18:06:30,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 441 events. 0/441 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 240 event pairs, 0 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2024-11-22 18:06:30,238 INFO L140 encePairwiseOnDemand]: 805/809 looper letters, 24 selfloop transitions, 3 changer transitions 0/187 dead transitions. [2024-11-22 18:06:30,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 187 transitions, 548 flow [2024-11-22 18:06:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2740 transitions. [2024-11-22 18:06:30,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8467243510506799 [2024-11-22 18:06:30,239 INFO L175 Difference]: Start difference. First operand has 255 places, 188 transitions, 496 flow. Second operand 4 states and 2740 transitions. [2024-11-22 18:06:30,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 187 transitions, 548 flow [2024-11-22 18:06:30,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 187 transitions, 547 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:30,242 INFO L231 Difference]: Finished difference. Result has 232 places, 187 transitions, 499 flow [2024-11-22 18:06:30,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=499, PETRI_PLACES=232, PETRI_TRANSITIONS=187} [2024-11-22 18:06:30,242 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -29 predicate places. [2024-11-22 18:06:30,242 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 187 transitions, 499 flow [2024-11-22 18:06:30,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:30,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:30,243 INFO L204 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:30,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-22 18:06:30,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-22 18:06:30,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:30,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2145037326, now seen corresponding path program 1 times [2024-11-22 18:06:30,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:30,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095158994] [2024-11-22 18:06:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:30,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:30,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:30,313 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-11-22 18:06:30,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-11-22 18:06:30,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-11-22 18:06:30,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-22 18:06:30,314 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:30,315 WARN L244 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:30,315 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-11-22 18:06:30,428 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:30,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 845 places, 846 transitions, 2700 flow [2024-11-22 18:06:30,658 INFO L124 PetriNetUnfolderBase]: 112/1436 cut-off events. [2024-11-22 18:06:30,658 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2024-11-22 18:06:30,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 1436 events. 112/1436 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4195 event pairs, 0 based on Foata normal form. 0/1254 useless extension candidates. Maximal degree in co-relation 1732. Up to 44 conditions per place. [2024-11-22 18:06:30,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 845 places, 846 transitions, 2700 flow [2024-11-22 18:06:30,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 229 transitions, 965 flow [2024-11-22 18:06:30,673 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:30,673 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:30,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-22 18:06:30,674 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:30,674 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:30,674 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:30,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:30,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:30,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-22 18:06:30,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash 613176267, now seen corresponding path program 1 times [2024-11-22 18:06:30,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:30,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776977972] [2024-11-22 18:06:30,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:30,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:30,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:30,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:30,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776977972] [2024-11-22 18:06:30,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776977972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:30,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:30,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:30,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697699330] [2024-11-22 18:06:30,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:30,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:30,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 686 out of 846 [2024-11-22 18:06:30,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 229 transitions, 965 flow. Second operand has 3 states, 3 states have (on average 687.3333333333334) internal successors, (2062), 3 states have internal predecessors, (2062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:30,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:30,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 686 of 846 [2024-11-22 18:06:30,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:30,999 INFO L124 PetriNetUnfolderBase]: 45/1104 cut-off events. [2024-11-22 18:06:30,999 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2024-11-22 18:06:31,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 1104 events. 45/1104 cut-off events. For 2003/2003 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3027 event pairs, 22 based on Foata normal form. 45/1056 useless extension candidates. Maximal degree in co-relation 1480. Up to 160 conditions per place. [2024-11-22 18:06:31,009 INFO L140 encePairwiseOnDemand]: 840/846 looper letters, 31 selfloop transitions, 2 changer transitions 1/225 dead transitions. [2024-11-22 18:06:31,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 225 transitions, 1023 flow [2024-11-22 18:06:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:31,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2095 transitions. [2024-11-22 18:06:31,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8254531126871553 [2024-11-22 18:06:31,011 INFO L175 Difference]: Start difference. First operand has 270 places, 229 transitions, 965 flow. Second operand 3 states and 2095 transitions. [2024-11-22 18:06:31,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 225 transitions, 1023 flow [2024-11-22 18:06:31,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 225 transitions, 642 flow, removed 190 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:31,018 INFO L231 Difference]: Finished difference. Result has 270 places, 224 transitions, 578 flow [2024-11-22 18:06:31,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=270, PETRI_TRANSITIONS=224} [2024-11-22 18:06:31,018 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, 0 predicate places. [2024-11-22 18:06:31,018 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 224 transitions, 578 flow [2024-11-22 18:06:31,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 687.3333333333334) internal successors, (2062), 3 states have internal predecessors, (2062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:31,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:31,019 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:31,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-22 18:06:31,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-22 18:06:31,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:31,019 INFO L85 PathProgramCache]: Analyzing trace with hash 648353308, now seen corresponding path program 1 times [2024-11-22 18:06:31,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:31,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90730591] [2024-11-22 18:06:31,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:31,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:31,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:31,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90730591] [2024-11-22 18:06:31,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90730591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:31,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:31,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:31,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493908565] [2024-11-22 18:06:31,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:31,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:31,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:31,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:31,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:31,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 846 [2024-11-22 18:06:31,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 224 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:31,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:31,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 846 [2024-11-22 18:06:31,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:31,287 INFO L124 PetriNetUnfolderBase]: 23/990 cut-off events. [2024-11-22 18:06:31,287 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-22 18:06:31,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 990 events. 23/990 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2306 event pairs, 0 based on Foata normal form. 22/967 useless extension candidates. Maximal degree in co-relation 1196. Up to 115 conditions per place. [2024-11-22 18:06:31,295 INFO L140 encePairwiseOnDemand]: 840/846 looper letters, 29 selfloop transitions, 1 changer transitions 24/219 dead transitions. [2024-11-22 18:06:31,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 219 transitions, 632 flow [2024-11-22 18:06:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:31,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1963 transitions. [2024-11-22 18:06:31,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7734436564223798 [2024-11-22 18:06:31,297 INFO L175 Difference]: Start difference. First operand has 270 places, 224 transitions, 578 flow. Second operand 3 states and 1963 transitions. [2024-11-22 18:06:31,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 219 transitions, 632 flow [2024-11-22 18:06:31,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 219 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:31,300 INFO L231 Difference]: Finished difference. Result has 264 places, 195 transitions, 516 flow [2024-11-22 18:06:31,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=264, PETRI_TRANSITIONS=195} [2024-11-22 18:06:31,301 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -6 predicate places. [2024-11-22 18:06:31,301 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 195 transitions, 516 flow [2024-11-22 18:06:31,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:31,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:31,301 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:31,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-22 18:06:31,301 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-22 18:06:31,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash 741385779, now seen corresponding path program 1 times [2024-11-22 18:06:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:31,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544445029] [2024-11-22 18:06:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:31,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2024-11-22 18:06:31,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:31,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544445029] [2024-11-22 18:06:31,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544445029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:31,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726771752] [2024-11-22 18:06:31,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:31,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:31,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:31,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 709 out of 846 [2024-11-22 18:06:31,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 195 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 715.75) internal successors, (2863), 4 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:31,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:31,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 709 of 846 [2024-11-22 18:06:31,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:31,548 INFO L124 PetriNetUnfolderBase]: 0/461 cut-off events. [2024-11-22 18:06:31,548 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-22 18:06:31,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 461 events. 0/461 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 252 event pairs, 0 based on Foata normal form. 0/461 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2024-11-22 18:06:31,549 INFO L140 encePairwiseOnDemand]: 842/846 looper letters, 25 selfloop transitions, 3 changer transitions 0/194 dead transitions. [2024-11-22 18:06:31,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 194 transitions, 570 flow [2024-11-22 18:06:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:31,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:31,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2865 transitions. [2024-11-22 18:06:31,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8466312056737588 [2024-11-22 18:06:31,551 INFO L175 Difference]: Start difference. First operand has 264 places, 195 transitions, 516 flow. Second operand 4 states and 2865 transitions. [2024-11-22 18:06:31,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 194 transitions, 570 flow [2024-11-22 18:06:31,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 194 transitions, 569 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:31,554 INFO L231 Difference]: Finished difference. Result has 241 places, 194 transitions, 519 flow [2024-11-22 18:06:31,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=519, PETRI_PLACES=241, PETRI_TRANSITIONS=194} [2024-11-22 18:06:31,554 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -29 predicate places. [2024-11-22 18:06:31,554 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 194 transitions, 519 flow [2024-11-22 18:06:31,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 715.75) internal successors, (2863), 4 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:31,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:31,555 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:31,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-22 18:06:31,555 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-22 18:06:31,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:31,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1315259578, now seen corresponding path program 1 times [2024-11-22 18:06:31,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:31,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318286008] [2024-11-22 18:06:31,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:31,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:31,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:31,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:31,645 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:31,645 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-22 18:06:31,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-22 18:06:31,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-22 18:06:31,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-22 18:06:31,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-22 18:06:31,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-22 18:06:31,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-22 18:06:31,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-22 18:06:31,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-22 18:06:31,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-22 18:06:31,649 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:31,649 WARN L244 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:31,649 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-11-22 18:06:31,722 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:31,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 882 places, 883 transitions, 2866 flow [2024-11-22 18:06:31,905 INFO L124 PetriNetUnfolderBase]: 117/1500 cut-off events. [2024-11-22 18:06:31,906 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2024-11-22 18:06:31,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1866 conditions, 1500 events. 117/1500 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4137 event pairs, 0 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1821. Up to 46 conditions per place. [2024-11-22 18:06:31,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 882 places, 883 transitions, 2866 flow [2024-11-22 18:06:31,921 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 236 transitions, 1025 flow [2024-11-22 18:06:31,921 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:31,921 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:31,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-22 18:06:31,922 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:31,922 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:31,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:31,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:31,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:31,923 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-22 18:06:31,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:31,923 INFO L85 PathProgramCache]: Analyzing trace with hash -684367765, now seen corresponding path program 1 times [2024-11-22 18:06:31,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681974381] [2024-11-22 18:06:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:31,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:31,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681974381] [2024-11-22 18:06:31,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681974381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:31,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:31,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:31,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386112873] [2024-11-22 18:06:31,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:31,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:31,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:31,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:31,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:32,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 716 out of 883 [2024-11-22 18:06:32,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 236 transitions, 1025 flow. Second operand has 3 states, 3 states have (on average 717.3333333333334) internal successors, (2152), 3 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:32,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:32,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 716 of 883 [2024-11-22 18:06:32,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:32,226 INFO L124 PetriNetUnfolderBase]: 47/1153 cut-off events. [2024-11-22 18:06:32,226 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2024-11-22 18:06:32,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1153 events. 47/1153 cut-off events. For 2278/2278 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3215 event pairs, 23 based on Foata normal form. 47/1103 useless extension candidates. Maximal degree in co-relation 1560. Up to 167 conditions per place. [2024-11-22 18:06:32,235 INFO L140 encePairwiseOnDemand]: 877/883 looper letters, 32 selfloop transitions, 2 changer transitions 1/232 dead transitions. [2024-11-22 18:06:32,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 232 transitions, 1085 flow [2024-11-22 18:06:32,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:32,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:32,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2186 transitions. [2024-11-22 18:06:32,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8252170630426576 [2024-11-22 18:06:32,237 INFO L175 Difference]: Start difference. First operand has 279 places, 236 transitions, 1025 flow. Second operand 3 states and 2186 transitions. [2024-11-22 18:06:32,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 232 transitions, 1085 flow [2024-11-22 18:06:32,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 232 transitions, 664 flow, removed 210 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:32,243 INFO L231 Difference]: Finished difference. Result has 279 places, 231 transitions, 598 flow [2024-11-22 18:06:32,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=279, PETRI_TRANSITIONS=231} [2024-11-22 18:06:32,244 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 0 predicate places. [2024-11-22 18:06:32,244 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 231 transitions, 598 flow [2024-11-22 18:06:32,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 717.3333333333334) internal successors, (2152), 3 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:32,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:32,245 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:32,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-22 18:06:32,245 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-22 18:06:32,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:32,245 INFO L85 PathProgramCache]: Analyzing trace with hash 220636815, now seen corresponding path program 1 times [2024-11-22 18:06:32,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:32,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449925175] [2024-11-22 18:06:32,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:32,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:32,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:32,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449925175] [2024-11-22 18:06:32,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449925175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:32,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:32,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:32,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938370995] [2024-11-22 18:06:32,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:32,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:32,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:32,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:32,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 670 out of 883 [2024-11-22 18:06:32,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 231 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:32,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:32,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 670 of 883 [2024-11-22 18:06:32,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:32,467 INFO L124 PetriNetUnfolderBase]: 24/1034 cut-off events. [2024-11-22 18:06:32,467 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-22 18:06:32,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 1034 events. 24/1034 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2413 event pairs, 0 based on Foata normal form. 23/1010 useless extension candidates. Maximal degree in co-relation 1250. Up to 120 conditions per place. [2024-11-22 18:06:32,475 INFO L140 encePairwiseOnDemand]: 877/883 looper letters, 30 selfloop transitions, 1 changer transitions 24/226 dead transitions. [2024-11-22 18:06:32,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 226 transitions, 654 flow [2024-11-22 18:06:32,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:32,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:32,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2048 transitions. [2024-11-22 18:06:32,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.773121932804832 [2024-11-22 18:06:32,476 INFO L175 Difference]: Start difference. First operand has 279 places, 231 transitions, 598 flow. Second operand 3 states and 2048 transitions. [2024-11-22 18:06:32,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 226 transitions, 654 flow [2024-11-22 18:06:32,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 226 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:32,479 INFO L231 Difference]: Finished difference. Result has 273 places, 202 transitions, 536 flow [2024-11-22 18:06:32,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=273, PETRI_TRANSITIONS=202} [2024-11-22 18:06:32,479 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2024-11-22 18:06:32,480 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 202 transitions, 536 flow [2024-11-22 18:06:32,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:32,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:32,480 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:32,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-22 18:06:32,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-22 18:06:32,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:32,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1711968992, now seen corresponding path program 1 times [2024-11-22 18:06:32,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:32,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560658266] [2024-11-22 18:06:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:32,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3410 trivial. 0 not checked. [2024-11-22 18:06:32,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:32,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560658266] [2024-11-22 18:06:32,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560658266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:32,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:32,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:32,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683299064] [2024-11-22 18:06:32,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:32,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:32,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:32,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:32,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:32,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 740 out of 883 [2024-11-22 18:06:32,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 202 transitions, 536 flow. Second operand has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:32,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:32,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 740 of 883 [2024-11-22 18:06:32,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:32,703 INFO L124 PetriNetUnfolderBase]: 0/481 cut-off events. [2024-11-22 18:06:32,703 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-22 18:06:32,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 481 events. 0/481 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 263 event pairs, 0 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2024-11-22 18:06:32,704 INFO L140 encePairwiseOnDemand]: 879/883 looper letters, 26 selfloop transitions, 3 changer transitions 0/201 dead transitions. [2024-11-22 18:06:32,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 201 transitions, 592 flow [2024-11-22 18:06:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2990 transitions. [2024-11-22 18:06:32,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8465458663646659 [2024-11-22 18:06:32,706 INFO L175 Difference]: Start difference. First operand has 273 places, 202 transitions, 536 flow. Second operand 4 states and 2990 transitions. [2024-11-22 18:06:32,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 201 transitions, 592 flow [2024-11-22 18:06:32,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 201 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:32,708 INFO L231 Difference]: Finished difference. Result has 250 places, 201 transitions, 539 flow [2024-11-22 18:06:32,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=539, PETRI_PLACES=250, PETRI_TRANSITIONS=201} [2024-11-22 18:06:32,709 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -29 predicate places. [2024-11-22 18:06:32,709 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 201 transitions, 539 flow [2024-11-22 18:06:32,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:32,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:32,709 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:32,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-22 18:06:32,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-22 18:06:32,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:32,710 INFO L85 PathProgramCache]: Analyzing trace with hash 598389254, now seen corresponding path program 1 times [2024-11-22 18:06:32,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:32,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842443581] [2024-11-22 18:06:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:32,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:32,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:32,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:32,800 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:32,800 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-11-22 18:06:32,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-22 18:06:32,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-22 18:06:32,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-22 18:06:32,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-22 18:06:32,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2024-11-22 18:06:32,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-22 18:06:32,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-22 18:06:32,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-22 18:06:32,804 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:32,804 WARN L244 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:32,804 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-11-22 18:06:32,880 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:32,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 919 places, 920 transitions, 3036 flow [2024-11-22 18:06:33,059 INFO L124 PetriNetUnfolderBase]: 122/1564 cut-off events. [2024-11-22 18:06:33,059 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2024-11-22 18:06:33,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1958 conditions, 1564 events. 122/1564 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4254 event pairs, 0 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 1911. Up to 48 conditions per place. [2024-11-22 18:06:33,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 919 places, 920 transitions, 3036 flow [2024-11-22 18:06:33,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 288 places, 243 transitions, 1087 flow [2024-11-22 18:06:33,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:33,075 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:33,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-22 18:06:33,076 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:33,076 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:33,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:33,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:33,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:33,076 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-22 18:06:33,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:33,076 INFO L85 PathProgramCache]: Analyzing trace with hash -265763477, now seen corresponding path program 1 times [2024-11-22 18:06:33,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:33,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830123992] [2024-11-22 18:06:33,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:33,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:33,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:33,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830123992] [2024-11-22 18:06:33,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830123992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:33,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:33,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:33,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053659100] [2024-11-22 18:06:33,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:33,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:33,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:33,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:33,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:33,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 746 out of 920 [2024-11-22 18:06:33,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 243 transitions, 1087 flow. Second operand has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:33,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:33,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 746 of 920 [2024-11-22 18:06:33,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:33,375 INFO L124 PetriNetUnfolderBase]: 49/1202 cut-off events. [2024-11-22 18:06:33,375 INFO L125 PetriNetUnfolderBase]: For 2577/2577 co-relation queries the response was YES. [2024-11-22 18:06:33,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1202 events. 49/1202 cut-off events. For 2577/2577 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3334 event pairs, 24 based on Foata normal form. 49/1150 useless extension candidates. Maximal degree in co-relation 1641. Up to 174 conditions per place. [2024-11-22 18:06:33,383 INFO L140 encePairwiseOnDemand]: 914/920 looper letters, 33 selfloop transitions, 2 changer transitions 1/239 dead transitions. [2024-11-22 18:06:33,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 239 transitions, 1149 flow [2024-11-22 18:06:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2277 transitions. [2024-11-22 18:06:33,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825 [2024-11-22 18:06:33,384 INFO L175 Difference]: Start difference. First operand has 288 places, 243 transitions, 1087 flow. Second operand 3 states and 2277 transitions. [2024-11-22 18:06:33,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 239 transitions, 1149 flow [2024-11-22 18:06:33,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 239 transitions, 686 flow, removed 231 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:33,393 INFO L231 Difference]: Finished difference. Result has 288 places, 238 transitions, 618 flow [2024-11-22 18:06:33,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=288, PETRI_TRANSITIONS=238} [2024-11-22 18:06:33,394 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, 0 predicate places. [2024-11-22 18:06:33,394 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 238 transitions, 618 flow [2024-11-22 18:06:33,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:33,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:33,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:33,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-22 18:06:33,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-22 18:06:33,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:33,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1723133401, now seen corresponding path program 1 times [2024-11-22 18:06:33,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:33,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111147999] [2024-11-22 18:06:33,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:33,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:33,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111147999] [2024-11-22 18:06:33,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111147999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:33,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:33,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:33,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915715192] [2024-11-22 18:06:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:33,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:33,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:33,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:33,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 920 [2024-11-22 18:06:33,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 238 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:33,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:33,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 920 [2024-11-22 18:06:33,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:33,625 INFO L124 PetriNetUnfolderBase]: 25/1078 cut-off events. [2024-11-22 18:06:33,625 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-22 18:06:33,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 1078 events. 25/1078 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2522 event pairs, 0 based on Foata normal form. 24/1053 useless extension candidates. Maximal degree in co-relation 1304. Up to 125 conditions per place. [2024-11-22 18:06:33,633 INFO L140 encePairwiseOnDemand]: 914/920 looper letters, 31 selfloop transitions, 1 changer transitions 24/233 dead transitions. [2024-11-22 18:06:33,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 233 transitions, 676 flow [2024-11-22 18:06:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:33,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2133 transitions. [2024-11-22 18:06:33,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7728260869565218 [2024-11-22 18:06:33,634 INFO L175 Difference]: Start difference. First operand has 288 places, 238 transitions, 618 flow. Second operand 3 states and 2133 transitions. [2024-11-22 18:06:33,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 233 transitions, 676 flow [2024-11-22 18:06:33,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 233 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:33,637 INFO L231 Difference]: Finished difference. Result has 282 places, 209 transitions, 556 flow [2024-11-22 18:06:33,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=556, PETRI_PLACES=282, PETRI_TRANSITIONS=209} [2024-11-22 18:06:33,637 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, -6 predicate places. [2024-11-22 18:06:33,637 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 209 transitions, 556 flow [2024-11-22 18:06:33,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:33,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:33,638 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:33,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-22 18:06:33,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-22 18:06:33,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:33,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2106399660, now seen corresponding path program 1 times [2024-11-22 18:06:33,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:33,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165004659] [2024-11-22 18:06:33,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:33,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3726 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3726 trivial. 0 not checked. [2024-11-22 18:06:33,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165004659] [2024-11-22 18:06:33,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165004659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:33,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:33,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470601764] [2024-11-22 18:06:33,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:33,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:33,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:33,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:33,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 771 out of 920 [2024-11-22 18:06:33,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 209 transitions, 556 flow. Second operand has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:33,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:33,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 771 of 920 [2024-11-22 18:06:33,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:33,843 INFO L124 PetriNetUnfolderBase]: 0/501 cut-off events. [2024-11-22 18:06:33,844 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-22 18:06:33,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 501 events. 0/501 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 276 event pairs, 0 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2024-11-22 18:06:33,844 INFO L140 encePairwiseOnDemand]: 916/920 looper letters, 27 selfloop transitions, 3 changer transitions 0/208 dead transitions. [2024-11-22 18:06:33,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 208 transitions, 614 flow [2024-11-22 18:06:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3115 transitions. [2024-11-22 18:06:33,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8464673913043478 [2024-11-22 18:06:33,846 INFO L175 Difference]: Start difference. First operand has 282 places, 209 transitions, 556 flow. Second operand 4 states and 3115 transitions. [2024-11-22 18:06:33,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 208 transitions, 614 flow [2024-11-22 18:06:33,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 208 transitions, 613 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:33,849 INFO L231 Difference]: Finished difference. Result has 259 places, 208 transitions, 559 flow [2024-11-22 18:06:33,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=559, PETRI_PLACES=259, PETRI_TRANSITIONS=208} [2024-11-22 18:06:33,850 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, -29 predicate places. [2024-11-22 18:06:33,850 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 208 transitions, 559 flow [2024-11-22 18:06:33,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:33,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:33,850 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:33,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-22 18:06:33,851 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-22 18:06:33,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:33,851 INFO L85 PathProgramCache]: Analyzing trace with hash 480657810, now seen corresponding path program 1 times [2024-11-22 18:06:33,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:33,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700041742] [2024-11-22 18:06:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:33,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:33,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:33,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:33,935 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:33,935 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-22 18:06:33,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-22 18:06:33,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-22 18:06:33,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-22 18:06:33,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-22 18:06:33,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-22 18:06:33,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-22 18:06:33,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-22 18:06:33,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-22 18:06:33,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-22 18:06:33,938 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:33,938 WARN L244 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:33,938 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-11-22 18:06:34,018 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:34,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 956 places, 957 transitions, 3210 flow [2024-11-22 18:06:34,212 INFO L124 PetriNetUnfolderBase]: 127/1628 cut-off events. [2024-11-22 18:06:34,213 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2024-11-22 18:06:34,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2051 conditions, 1628 events. 127/1628 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4558 event pairs, 0 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 2002. Up to 50 conditions per place. [2024-11-22 18:06:34,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 956 places, 957 transitions, 3210 flow [2024-11-22 18:06:34,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 250 transitions, 1151 flow [2024-11-22 18:06:34,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:34,230 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:34,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-22 18:06:34,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:34,231 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:34,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:34,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:34,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:34,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-22 18:06:34,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1868989131, now seen corresponding path program 1 times [2024-11-22 18:06:34,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:34,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508918915] [2024-11-22 18:06:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:34,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:34,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:34,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508918915] [2024-11-22 18:06:34,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508918915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:34,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:34,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:34,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682034228] [2024-11-22 18:06:34,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:34,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:34,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:34,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:34,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:34,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 776 out of 957 [2024-11-22 18:06:34,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 250 transitions, 1151 flow. Second operand has 3 states, 3 states have (on average 777.3333333333334) internal successors, (2332), 3 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:34,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:34,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 776 of 957 [2024-11-22 18:06:34,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:34,519 INFO L124 PetriNetUnfolderBase]: 51/1251 cut-off events. [2024-11-22 18:06:34,519 INFO L125 PetriNetUnfolderBase]: For 2901/2901 co-relation queries the response was YES. [2024-11-22 18:06:34,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 1251 events. 51/1251 cut-off events. For 2901/2901 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3429 event pairs, 25 based on Foata normal form. 26/1172 useless extension candidates. Maximal degree in co-relation 1723. Up to 181 conditions per place. [2024-11-22 18:06:34,530 INFO L140 encePairwiseOnDemand]: 951/957 looper letters, 34 selfloop transitions, 2 changer transitions 1/246 dead transitions. [2024-11-22 18:06:34,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 246 transitions, 1215 flow [2024-11-22 18:06:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:34,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2368 transitions. [2024-11-22 18:06:34,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8247997213514455 [2024-11-22 18:06:34,532 INFO L175 Difference]: Start difference. First operand has 297 places, 250 transitions, 1151 flow. Second operand 3 states and 2368 transitions. [2024-11-22 18:06:34,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 246 transitions, 1215 flow [2024-11-22 18:06:34,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 246 transitions, 708 flow, removed 253 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:34,539 INFO L231 Difference]: Finished difference. Result has 297 places, 245 transitions, 638 flow [2024-11-22 18:06:34,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=297, PETRI_TRANSITIONS=245} [2024-11-22 18:06:34,539 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, 0 predicate places. [2024-11-22 18:06:34,539 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 245 transitions, 638 flow [2024-11-22 18:06:34,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 777.3333333333334) internal successors, (2332), 3 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:34,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:34,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:34,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-22 18:06:34,540 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-22 18:06:34,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:34,540 INFO L85 PathProgramCache]: Analyzing trace with hash -887990044, now seen corresponding path program 1 times [2024-11-22 18:06:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:34,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582208952] [2024-11-22 18:06:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:34,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:34,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:34,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582208952] [2024-11-22 18:06:34,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582208952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:34,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:34,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217763151] [2024-11-22 18:06:34,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:34,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:34,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:34,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 957 [2024-11-22 18:06:34,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 245 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 727.0) internal successors, (2181), 3 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:34,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:34,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 957 [2024-11-22 18:06:34,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:34,851 INFO L124 PetriNetUnfolderBase]: 26/1122 cut-off events. [2024-11-22 18:06:34,851 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-22 18:06:34,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 1122 events. 26/1122 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2579 event pairs, 0 based on Foata normal form. 25/1096 useless extension candidates. Maximal degree in co-relation 1358. Up to 130 conditions per place. [2024-11-22 18:06:34,860 INFO L140 encePairwiseOnDemand]: 951/957 looper letters, 32 selfloop transitions, 1 changer transitions 24/240 dead transitions. [2024-11-22 18:06:34,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 240 transitions, 698 flow [2024-11-22 18:06:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:34,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2218 transitions. [2024-11-22 18:06:34,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7725531173807035 [2024-11-22 18:06:34,862 INFO L175 Difference]: Start difference. First operand has 297 places, 245 transitions, 638 flow. Second operand 3 states and 2218 transitions. [2024-11-22 18:06:34,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 240 transitions, 698 flow [2024-11-22 18:06:34,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 240 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:34,866 INFO L231 Difference]: Finished difference. Result has 291 places, 216 transitions, 576 flow [2024-11-22 18:06:34,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=291, PETRI_TRANSITIONS=216} [2024-11-22 18:06:34,868 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, -6 predicate places. [2024-11-22 18:06:34,868 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 216 transitions, 576 flow [2024-11-22 18:06:34,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 727.0) internal successors, (2181), 3 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:34,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:34,869 INFO L204 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:34,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-22 18:06:34,869 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-22 18:06:34,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:34,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1065240017, now seen corresponding path program 1 times [2024-11-22 18:06:34,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:34,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183100792] [2024-11-22 18:06:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:34,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4056 trivial. 0 not checked. [2024-11-22 18:06:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183100792] [2024-11-22 18:06:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183100792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:34,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:34,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886130576] [2024-11-22 18:06:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:34,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:34,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:34,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 802 out of 957 [2024-11-22 18:06:34,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 216 transitions, 576 flow. Second operand has 4 states, 4 states have (on average 809.5) internal successors, (3238), 4 states have internal predecessors, (3238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:34,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:34,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 802 of 957 [2024-11-22 18:06:34,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:35,086 INFO L124 PetriNetUnfolderBase]: 0/521 cut-off events. [2024-11-22 18:06:35,086 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-22 18:06:35,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 521 events. 0/521 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 288 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2024-11-22 18:06:35,087 INFO L140 encePairwiseOnDemand]: 953/957 looper letters, 28 selfloop transitions, 3 changer transitions 0/215 dead transitions. [2024-11-22 18:06:35,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 215 transitions, 636 flow [2024-11-22 18:06:35,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:35,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3240 transitions. [2024-11-22 18:06:35,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8463949843260188 [2024-11-22 18:06:35,089 INFO L175 Difference]: Start difference. First operand has 291 places, 216 transitions, 576 flow. Second operand 4 states and 3240 transitions. [2024-11-22 18:06:35,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 215 transitions, 636 flow [2024-11-22 18:06:35,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 215 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:35,092 INFO L231 Difference]: Finished difference. Result has 268 places, 215 transitions, 579 flow [2024-11-22 18:06:35,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=579, PETRI_PLACES=268, PETRI_TRANSITIONS=215} [2024-11-22 18:06:35,092 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, -29 predicate places. [2024-11-22 18:06:35,092 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 215 transitions, 579 flow [2024-11-22 18:06:35,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 809.5) internal successors, (3238), 4 states have internal predecessors, (3238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:35,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:35,093 INFO L204 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:35,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-22 18:06:35,093 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-22 18:06:35,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:35,093 INFO L85 PathProgramCache]: Analyzing trace with hash -403229878, now seen corresponding path program 1 times [2024-11-22 18:06:35,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:35,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989381536] [2024-11-22 18:06:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:35,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:35,127 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:35,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:35,189 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:35,189 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-22 18:06:35,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-22 18:06:35,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-22 18:06:35,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-22 18:06:35,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-22 18:06:35,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-22 18:06:35,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-22 18:06:35,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-22 18:06:35,192 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:35,192 WARN L244 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:35,192 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-11-22 18:06:35,277 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:35,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 993 places, 994 transitions, 3388 flow [2024-11-22 18:06:35,501 INFO L124 PetriNetUnfolderBase]: 132/1692 cut-off events. [2024-11-22 18:06:35,501 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-22 18:06:35,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2145 conditions, 1692 events. 132/1692 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4743 event pairs, 0 based on Foata normal form. 0/1478 useless extension candidates. Maximal degree in co-relation 2094. Up to 52 conditions per place. [2024-11-22 18:06:35,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 993 places, 994 transitions, 3388 flow [2024-11-22 18:06:35,520 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 257 transitions, 1217 flow [2024-11-22 18:06:35,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:35,520 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:35,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-22 18:06:35,521 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:35,521 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:35,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:35,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:35,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:35,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-22 18:06:35,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:35,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1424922763, now seen corresponding path program 1 times [2024-11-22 18:06:35,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:35,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365827182] [2024-11-22 18:06:35,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:35,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:35,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:35,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365827182] [2024-11-22 18:06:35,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365827182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:35,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:35,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921932289] [2024-11-22 18:06:35,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:35,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:35,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:35,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:35,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 806 out of 994 [2024-11-22 18:06:35,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 257 transitions, 1217 flow. Second operand has 3 states, 3 states have (on average 807.3333333333334) internal successors, (2422), 3 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:35,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:35,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 806 of 994 [2024-11-22 18:06:35,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:35,827 INFO L124 PetriNetUnfolderBase]: 53/1300 cut-off events. [2024-11-22 18:06:35,828 INFO L125 PetriNetUnfolderBase]: For 3251/3251 co-relation queries the response was YES. [2024-11-22 18:06:35,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1300 events. 53/1300 cut-off events. For 3251/3251 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3569 event pairs, 26 based on Foata normal form. 27/1218 useless extension candidates. Maximal degree in co-relation 1806. Up to 188 conditions per place. [2024-11-22 18:06:35,841 INFO L140 encePairwiseOnDemand]: 988/994 looper letters, 35 selfloop transitions, 2 changer transitions 1/253 dead transitions. [2024-11-22 18:06:35,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 253 transitions, 1283 flow [2024-11-22 18:06:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:35,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:35,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2459 transitions. [2024-11-22 18:06:35,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8246143527833669 [2024-11-22 18:06:35,843 INFO L175 Difference]: Start difference. First operand has 306 places, 257 transitions, 1217 flow. Second operand 3 states and 2459 transitions. [2024-11-22 18:06:35,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 253 transitions, 1283 flow [2024-11-22 18:06:35,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 253 transitions, 730 flow, removed 276 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:35,850 INFO L231 Difference]: Finished difference. Result has 306 places, 252 transitions, 658 flow [2024-11-22 18:06:35,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=306, PETRI_TRANSITIONS=252} [2024-11-22 18:06:35,850 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2024-11-22 18:06:35,850 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 252 transitions, 658 flow [2024-11-22 18:06:35,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 807.3333333333334) internal successors, (2422), 3 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:35,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:35,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:35,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-22 18:06:35,851 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-22 18:06:35,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1568900410, now seen corresponding path program 1 times [2024-11-22 18:06:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:35,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236206850] [2024-11-22 18:06:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:35,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:35,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:35,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:35,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236206850] [2024-11-22 18:06:35,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236206850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:35,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:35,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:35,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244474980] [2024-11-22 18:06:35,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:35,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:35,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:35,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:35,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:35,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 754 out of 994 [2024-11-22 18:06:35,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 252 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 755.0) internal successors, (2265), 3 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:35,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:35,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 754 of 994 [2024-11-22 18:06:35,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:36,263 INFO L124 PetriNetUnfolderBase]: 27/1166 cut-off events. [2024-11-22 18:06:36,263 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2024-11-22 18:06:36,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1166 events. 27/1166 cut-off events. For 374/374 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2681 event pairs, 0 based on Foata normal form. 26/1139 useless extension candidates. Maximal degree in co-relation 1412. Up to 135 conditions per place. [2024-11-22 18:06:36,272 INFO L140 encePairwiseOnDemand]: 988/994 looper letters, 33 selfloop transitions, 1 changer transitions 24/247 dead transitions. [2024-11-22 18:06:36,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 247 transitions, 720 flow [2024-11-22 18:06:36,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:36,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:36,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2303 transitions. [2024-11-22 18:06:36,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7723004694835681 [2024-11-22 18:06:36,275 INFO L175 Difference]: Start difference. First operand has 306 places, 252 transitions, 658 flow. Second operand 3 states and 2303 transitions. [2024-11-22 18:06:36,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 247 transitions, 720 flow [2024-11-22 18:06:36,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 247 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:36,278 INFO L231 Difference]: Finished difference. Result has 300 places, 223 transitions, 596 flow [2024-11-22 18:06:36,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=300, PETRI_TRANSITIONS=223} [2024-11-22 18:06:36,279 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -6 predicate places. [2024-11-22 18:06:36,279 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 223 transitions, 596 flow [2024-11-22 18:06:36,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 755.0) internal successors, (2265), 3 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:36,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:36,279 INFO L204 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:36,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-22 18:06:36,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-22 18:06:36,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:36,280 INFO L85 PathProgramCache]: Analyzing trace with hash 983307281, now seen corresponding path program 1 times [2024-11-22 18:06:36,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:36,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591445611] [2024-11-22 18:06:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:36,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4400 trivial. 0 not checked. [2024-11-22 18:06:36,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:36,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591445611] [2024-11-22 18:06:36,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591445611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:36,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:36,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:36,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941296016] [2024-11-22 18:06:36,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:36,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:36,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:36,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:36,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:36,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 833 out of 994 [2024-11-22 18:06:36,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 223 transitions, 596 flow. Second operand has 4 states, 4 states have (on average 840.75) internal successors, (3363), 4 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:36,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:36,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 833 of 994 [2024-11-22 18:06:36,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:36,613 INFO L124 PetriNetUnfolderBase]: 0/541 cut-off events. [2024-11-22 18:06:36,613 INFO L125 PetriNetUnfolderBase]: For 373/373 co-relation queries the response was YES. [2024-11-22 18:06:36,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 541 events. 0/541 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 300 event pairs, 0 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2024-11-22 18:06:36,614 INFO L140 encePairwiseOnDemand]: 990/994 looper letters, 29 selfloop transitions, 3 changer transitions 0/222 dead transitions. [2024-11-22 18:06:36,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 222 transitions, 658 flow [2024-11-22 18:06:36,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3365 transitions. [2024-11-22 18:06:36,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.846327967806841 [2024-11-22 18:06:36,617 INFO L175 Difference]: Start difference. First operand has 300 places, 223 transitions, 596 flow. Second operand 4 states and 3365 transitions. [2024-11-22 18:06:36,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 222 transitions, 658 flow [2024-11-22 18:06:36,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 222 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:36,620 INFO L231 Difference]: Finished difference. Result has 277 places, 222 transitions, 599 flow [2024-11-22 18:06:36,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=599, PETRI_PLACES=277, PETRI_TRANSITIONS=222} [2024-11-22 18:06:36,621 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -29 predicate places. [2024-11-22 18:06:36,621 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 222 transitions, 599 flow [2024-11-22 18:06:36,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 840.75) internal successors, (3363), 4 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:36,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:36,622 INFO L204 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:36,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-22 18:06:36,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-22 18:06:36,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:36,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1633947790, now seen corresponding path program 1 times [2024-11-22 18:06:36,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:36,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627173788] [2024-11-22 18:06:36,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:36,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:36,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:36,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:36,747 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:36,748 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-22 18:06:36,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-22 18:06:36,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-22 18:06:36,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-22 18:06:36,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-22 18:06:36,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-22 18:06:36,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-22 18:06:36,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-22 18:06:36,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-22 18:06:36,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-22 18:06:36,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-22 18:06:36,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-22 18:06:36,751 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:36,751 WARN L244 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:36,752 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-11-22 18:06:36,853 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:36,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1030 places, 1031 transitions, 3570 flow [2024-11-22 18:06:37,199 INFO L124 PetriNetUnfolderBase]: 137/1756 cut-off events. [2024-11-22 18:06:37,199 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2024-11-22 18:06:37,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2240 conditions, 1756 events. 137/1756 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4778 event pairs, 0 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2187. Up to 54 conditions per place. [2024-11-22 18:06:37,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 1030 places, 1031 transitions, 3570 flow [2024-11-22 18:06:37,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 264 transitions, 1285 flow [2024-11-22 18:06:37,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:37,222 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:37,222 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-22 18:06:37,223 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:37,223 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:37,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:37,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:37,223 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:37,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-22 18:06:37,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1597962581, now seen corresponding path program 1 times [2024-11-22 18:06:37,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:37,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083463864] [2024-11-22 18:06:37,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:37,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:37,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:37,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083463864] [2024-11-22 18:06:37,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083463864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:37,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:37,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:37,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001526851] [2024-11-22 18:06:37,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:37,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:37,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:37,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:37,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:37,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 836 out of 1031 [2024-11-22 18:06:37,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 264 transitions, 1285 flow. Second operand has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:37,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:37,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 836 of 1031 [2024-11-22 18:06:37,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:37,615 INFO L124 PetriNetUnfolderBase]: 55/1349 cut-off events. [2024-11-22 18:06:37,615 INFO L125 PetriNetUnfolderBase]: For 3628/3628 co-relation queries the response was YES. [2024-11-22 18:06:37,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2005 conditions, 1349 events. 55/1349 cut-off events. For 3628/3628 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3664 event pairs, 27 based on Foata normal form. 55/1291 useless extension candidates. Maximal degree in co-relation 1890. Up to 195 conditions per place. [2024-11-22 18:06:37,628 INFO L140 encePairwiseOnDemand]: 1025/1031 looper letters, 36 selfloop transitions, 2 changer transitions 1/260 dead transitions. [2024-11-22 18:06:37,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 260 transitions, 1353 flow [2024-11-22 18:06:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2550 transitions. [2024-11-22 18:06:37,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8244422890397672 [2024-11-22 18:06:37,630 INFO L175 Difference]: Start difference. First operand has 315 places, 264 transitions, 1285 flow. Second operand 3 states and 2550 transitions. [2024-11-22 18:06:37,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 260 transitions, 1353 flow [2024-11-22 18:06:37,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 260 transitions, 752 flow, removed 300 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:37,636 INFO L231 Difference]: Finished difference. Result has 315 places, 259 transitions, 678 flow [2024-11-22 18:06:37,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=315, PETRI_TRANSITIONS=259} [2024-11-22 18:06:37,637 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 0 predicate places. [2024-11-22 18:06:37,637 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 259 transitions, 678 flow [2024-11-22 18:06:37,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:37,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:37,637 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:37,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-22 18:06:37,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-22 18:06:37,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:37,638 INFO L85 PathProgramCache]: Analyzing trace with hash 529102797, now seen corresponding path program 1 times [2024-11-22 18:06:37,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:37,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54003500] [2024-11-22 18:06:37,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:37,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:37,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:37,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54003500] [2024-11-22 18:06:37,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54003500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:37,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:37,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:37,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501486194] [2024-11-22 18:06:37,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:37,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:37,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:37,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:37,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:37,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 782 out of 1031 [2024-11-22 18:06:37,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 259 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 783.0) internal successors, (2349), 3 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:37,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:37,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 782 of 1031 [2024-11-22 18:06:37,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:37,905 INFO L124 PetriNetUnfolderBase]: 28/1210 cut-off events. [2024-11-22 18:06:37,905 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-22 18:06:37,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 1210 events. 28/1210 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2714 event pairs, 0 based on Foata normal form. 27/1182 useless extension candidates. Maximal degree in co-relation 1466. Up to 140 conditions per place. [2024-11-22 18:06:37,915 INFO L140 encePairwiseOnDemand]: 1025/1031 looper letters, 34 selfloop transitions, 1 changer transitions 24/254 dead transitions. [2024-11-22 18:06:37,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 254 transitions, 742 flow [2024-11-22 18:06:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:37,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2388 transitions. [2024-11-22 18:06:37,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7720659553831232 [2024-11-22 18:06:37,917 INFO L175 Difference]: Start difference. First operand has 315 places, 259 transitions, 678 flow. Second operand 3 states and 2388 transitions. [2024-11-22 18:06:37,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 254 transitions, 742 flow [2024-11-22 18:06:37,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 254 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:37,920 INFO L231 Difference]: Finished difference. Result has 309 places, 230 transitions, 616 flow [2024-11-22 18:06:37,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=309, PETRI_TRANSITIONS=230} [2024-11-22 18:06:37,920 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -6 predicate places. [2024-11-22 18:06:37,920 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 230 transitions, 616 flow [2024-11-22 18:06:37,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 783.0) internal successors, (2349), 3 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:37,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:37,921 INFO L204 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:37,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-22 18:06:37,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-22 18:06:37,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash -156249702, now seen corresponding path program 1 times [2024-11-22 18:06:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:37,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7584012] [2024-11-22 18:06:37,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:37,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4758 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4758 trivial. 0 not checked. [2024-11-22 18:06:38,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:38,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7584012] [2024-11-22 18:06:38,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7584012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:38,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:38,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:38,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546256302] [2024-11-22 18:06:38,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:38,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:38,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:38,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:38,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:38,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 864 out of 1031 [2024-11-22 18:06:38,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 230 transitions, 616 flow. Second operand has 4 states, 4 states have (on average 872.0) internal successors, (3488), 4 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:38,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:38,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 864 of 1031 [2024-11-22 18:06:38,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:38,177 INFO L124 PetriNetUnfolderBase]: 0/561 cut-off events. [2024-11-22 18:06:38,177 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-22 18:06:38,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 561 events. 0/561 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 311 event pairs, 0 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2024-11-22 18:06:38,178 INFO L140 encePairwiseOnDemand]: 1027/1031 looper letters, 30 selfloop transitions, 3 changer transitions 0/229 dead transitions. [2024-11-22 18:06:38,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 229 transitions, 680 flow [2024-11-22 18:06:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:38,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:38,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3490 transitions. [2024-11-22 18:06:38,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8462657613967022 [2024-11-22 18:06:38,181 INFO L175 Difference]: Start difference. First operand has 309 places, 230 transitions, 616 flow. Second operand 4 states and 3490 transitions. [2024-11-22 18:06:38,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 229 transitions, 680 flow [2024-11-22 18:06:38,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 229 transitions, 679 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:38,184 INFO L231 Difference]: Finished difference. Result has 286 places, 229 transitions, 619 flow [2024-11-22 18:06:38,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=619, PETRI_PLACES=286, PETRI_TRANSITIONS=229} [2024-11-22 18:06:38,184 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-11-22 18:06:38,184 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 229 transitions, 619 flow [2024-11-22 18:06:38,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 872.0) internal successors, (3488), 4 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:38,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:38,185 INFO L204 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:38,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-22 18:06:38,185 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-22 18:06:38,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:38,185 INFO L85 PathProgramCache]: Analyzing trace with hash 550773438, now seen corresponding path program 1 times [2024-11-22 18:06:38,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:38,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623474047] [2024-11-22 18:06:38,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:38,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:38,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:38,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:38,354 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-11-22 18:06:38,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-11-22 18:06:38,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-11-22 18:06:38,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-11-22 18:06:38,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-11-22 18:06:38,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-22 18:06:38,357 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:38,357 WARN L244 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:38,357 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-11-22 18:06:38,444 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:38,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1067 places, 1068 transitions, 3756 flow [2024-11-22 18:06:38,694 INFO L124 PetriNetUnfolderBase]: 142/1820 cut-off events. [2024-11-22 18:06:38,694 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2024-11-22 18:06:38,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1820 events. 142/1820 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4979 event pairs, 0 based on Foata normal form. 0/1590 useless extension candidates. Maximal degree in co-relation 2281. Up to 56 conditions per place. [2024-11-22 18:06:38,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 1067 places, 1068 transitions, 3756 flow [2024-11-22 18:06:38,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 271 transitions, 1355 flow [2024-11-22 18:06:38,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:38,716 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:38,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-22 18:06:38,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:38,717 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:38,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:38,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:38,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:38,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 18:06:38,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1390267691, now seen corresponding path program 1 times [2024-11-22 18:06:38,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:38,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037505433] [2024-11-22 18:06:38,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:38,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:38,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:38,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:38,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037505433] [2024-11-22 18:06:38,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037505433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:38,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:38,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:38,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749392509] [2024-11-22 18:06:38,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:38,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:38,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:38,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1068 [2024-11-22 18:06:38,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 271 transitions, 1355 flow. Second operand has 3 states, 3 states have (on average 867.3333333333334) internal successors, (2602), 3 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:38,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:38,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1068 [2024-11-22 18:06:38,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:39,027 INFO L124 PetriNetUnfolderBase]: 57/1398 cut-off events. [2024-11-22 18:06:39,027 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2024-11-22 18:06:39,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 1398 events. 57/1398 cut-off events. For 4033/4033 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3937 event pairs, 28 based on Foata normal form. 57/1338 useless extension candidates. Maximal degree in co-relation 1975. Up to 202 conditions per place. [2024-11-22 18:06:39,041 INFO L140 encePairwiseOnDemand]: 1062/1068 looper letters, 37 selfloop transitions, 2 changer transitions 1/267 dead transitions. [2024-11-22 18:06:39,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 267 transitions, 1425 flow [2024-11-22 18:06:39,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:39,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:39,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2641 transitions. [2024-11-22 18:06:39,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8242821473158551 [2024-11-22 18:06:39,043 INFO L175 Difference]: Start difference. First operand has 324 places, 271 transitions, 1355 flow. Second operand 3 states and 2641 transitions. [2024-11-22 18:06:39,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 267 transitions, 1425 flow [2024-11-22 18:06:39,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 267 transitions, 774 flow, removed 325 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:39,049 INFO L231 Difference]: Finished difference. Result has 324 places, 266 transitions, 698 flow [2024-11-22 18:06:39,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=324, PETRI_TRANSITIONS=266} [2024-11-22 18:06:39,050 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 0 predicate places. [2024-11-22 18:06:39,050 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 266 transitions, 698 flow [2024-11-22 18:06:39,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 867.3333333333334) internal successors, (2602), 3 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:39,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:39,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:39,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-22 18:06:39,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 18:06:39,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:39,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1111052281, now seen corresponding path program 1 times [2024-11-22 18:06:39,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:39,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354634111] [2024-11-22 18:06:39,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:39,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:39,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:39,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354634111] [2024-11-22 18:06:39,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354634111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:39,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:39,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:39,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171961376] [2024-11-22 18:06:39,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:39,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:39,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:39,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:39,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 810 out of 1068 [2024-11-22 18:06:39,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 266 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 811.0) internal successors, (2433), 3 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:39,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:39,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 810 of 1068 [2024-11-22 18:06:39,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:39,344 INFO L124 PetriNetUnfolderBase]: 29/1254 cut-off events. [2024-11-22 18:06:39,344 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-22 18:06:39,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 1254 events. 29/1254 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2953 event pairs, 0 based on Foata normal form. 28/1225 useless extension candidates. Maximal degree in co-relation 1520. Up to 145 conditions per place. [2024-11-22 18:06:39,356 INFO L140 encePairwiseOnDemand]: 1062/1068 looper letters, 35 selfloop transitions, 1 changer transitions 24/261 dead transitions. [2024-11-22 18:06:39,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 261 transitions, 764 flow [2024-11-22 18:06:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:39,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:39,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2473 transitions. [2024-11-22 18:06:39,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7718476903870163 [2024-11-22 18:06:39,359 INFO L175 Difference]: Start difference. First operand has 324 places, 266 transitions, 698 flow. Second operand 3 states and 2473 transitions. [2024-11-22 18:06:39,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 261 transitions, 764 flow [2024-11-22 18:06:39,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 261 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:39,362 INFO L231 Difference]: Finished difference. Result has 318 places, 237 transitions, 636 flow [2024-11-22 18:06:39,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=318, PETRI_TRANSITIONS=237} [2024-11-22 18:06:39,362 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, -6 predicate places. [2024-11-22 18:06:39,362 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 237 transitions, 636 flow [2024-11-22 18:06:39,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 811.0) internal successors, (2433), 3 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:39,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:39,363 INFO L204 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:39,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-22 18:06:39,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 18:06:39,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:39,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1947225494, now seen corresponding path program 1 times [2024-11-22 18:06:39,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:39,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926127003] [2024-11-22 18:06:39,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:39,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:39,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5130 trivial. 0 not checked. [2024-11-22 18:06:39,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:39,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926127003] [2024-11-22 18:06:39,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926127003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:39,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:39,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:39,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295315486] [2024-11-22 18:06:39,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:39,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:39,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:39,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:39,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:39,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 895 out of 1068 [2024-11-22 18:06:39,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 237 transitions, 636 flow. Second operand has 4 states, 4 states have (on average 903.25) internal successors, (3613), 4 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:39,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:39,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 895 of 1068 [2024-11-22 18:06:39,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:39,617 INFO L124 PetriNetUnfolderBase]: 0/581 cut-off events. [2024-11-22 18:06:39,617 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-22 18:06:39,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 581 events. 0/581 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 323 event pairs, 0 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2024-11-22 18:06:39,618 INFO L140 encePairwiseOnDemand]: 1064/1068 looper letters, 31 selfloop transitions, 3 changer transitions 0/236 dead transitions. [2024-11-22 18:06:39,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 236 transitions, 702 flow [2024-11-22 18:06:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:39,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3615 transitions. [2024-11-22 18:06:39,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8462078651685393 [2024-11-22 18:06:39,620 INFO L175 Difference]: Start difference. First operand has 318 places, 237 transitions, 636 flow. Second operand 4 states and 3615 transitions. [2024-11-22 18:06:39,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 236 transitions, 702 flow [2024-11-22 18:06:39,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 236 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:39,622 INFO L231 Difference]: Finished difference. Result has 295 places, 236 transitions, 639 flow [2024-11-22 18:06:39,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=639, PETRI_PLACES=295, PETRI_TRANSITIONS=236} [2024-11-22 18:06:39,623 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, -29 predicate places. [2024-11-22 18:06:39,623 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 236 transitions, 639 flow [2024-11-22 18:06:39,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 903.25) internal successors, (3613), 4 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:39,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:39,623 INFO L204 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:39,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-22 18:06:39,623 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 18:06:39,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:39,624 INFO L85 PathProgramCache]: Analyzing trace with hash -426544326, now seen corresponding path program 1 times [2024-11-22 18:06:39,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:39,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265456368] [2024-11-22 18:06:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:39,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:39,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:39,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:39,743 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2024-11-22 18:06:39,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2024-11-22 18:06:39,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2024-11-22 18:06:39,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2024-11-22 18:06:39,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2024-11-22 18:06:39,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2024-11-22 18:06:39,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-22 18:06:39,745 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:39,745 WARN L244 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:39,745 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-11-22 18:06:39,835 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:39,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1104 places, 1105 transitions, 3946 flow [2024-11-22 18:06:40,102 INFO L124 PetriNetUnfolderBase]: 147/1884 cut-off events. [2024-11-22 18:06:40,103 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2024-11-22 18:06:40,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1884 events. 147/1884 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5375 event pairs, 0 based on Foata normal form. 0/1646 useless extension candidates. Maximal degree in co-relation 2376. Up to 58 conditions per place. [2024-11-22 18:06:40,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 1104 places, 1105 transitions, 3946 flow [2024-11-22 18:06:40,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 278 transitions, 1427 flow [2024-11-22 18:06:40,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:40,126 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:40,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-22 18:06:40,127 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:40,127 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:40,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:40,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:40,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:40,127 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-22 18:06:40,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:40,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1799678987, now seen corresponding path program 1 times [2024-11-22 18:06:40,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:40,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847971561] [2024-11-22 18:06:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:40,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:40,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:40,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847971561] [2024-11-22 18:06:40,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847971561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:40,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:40,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643819839] [2024-11-22 18:06:40,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:40,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:40,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:40,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:40,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 896 out of 1105 [2024-11-22 18:06:40,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 278 transitions, 1427 flow. Second operand has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:40,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:40,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 896 of 1105 [2024-11-22 18:06:40,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:40,533 INFO L124 PetriNetUnfolderBase]: 59/1447 cut-off events. [2024-11-22 18:06:40,534 INFO L125 PetriNetUnfolderBase]: For 4467/4467 co-relation queries the response was YES. [2024-11-22 18:06:40,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2180 conditions, 1447 events. 59/1447 cut-off events. For 4467/4467 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3995 event pairs, 29 based on Foata normal form. 30/1356 useless extension candidates. Maximal degree in co-relation 2061. Up to 209 conditions per place. [2024-11-22 18:06:40,548 INFO L140 encePairwiseOnDemand]: 1099/1105 looper letters, 38 selfloop transitions, 2 changer transitions 1/274 dead transitions. [2024-11-22 18:06:40,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 274 transitions, 1499 flow [2024-11-22 18:06:40,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:40,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2732 transitions. [2024-11-22 18:06:40,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8241327300150829 [2024-11-22 18:06:40,550 INFO L175 Difference]: Start difference. First operand has 333 places, 278 transitions, 1427 flow. Second operand 3 states and 2732 transitions. [2024-11-22 18:06:40,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 274 transitions, 1499 flow [2024-11-22 18:06:40,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 274 transitions, 796 flow, removed 351 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:40,556 INFO L231 Difference]: Finished difference. Result has 333 places, 273 transitions, 718 flow [2024-11-22 18:06:40,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=333, PETRI_TRANSITIONS=273} [2024-11-22 18:06:40,557 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 0 predicate places. [2024-11-22 18:06:40,557 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 273 transitions, 718 flow [2024-11-22 18:06:40,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:40,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:40,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:40,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-22 18:06:40,557 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-22 18:06:40,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash 176948042, now seen corresponding path program 1 times [2024-11-22 18:06:40,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:40,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751847055] [2024-11-22 18:06:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:40,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:40,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:40,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751847055] [2024-11-22 18:06:40,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751847055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:40,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:40,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:40,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235222809] [2024-11-22 18:06:40,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:40,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:40,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:40,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:40,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 838 out of 1105 [2024-11-22 18:06:40,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 273 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 839.0) internal successors, (2517), 3 states have internal predecessors, (2517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:40,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:40,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 838 of 1105 [2024-11-22 18:06:40,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:40,837 INFO L124 PetriNetUnfolderBase]: 30/1298 cut-off events. [2024-11-22 18:06:40,837 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-22 18:06:40,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1623 conditions, 1298 events. 30/1298 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3002 event pairs, 0 based on Foata normal form. 29/1268 useless extension candidates. Maximal degree in co-relation 1574. Up to 150 conditions per place. [2024-11-22 18:06:40,849 INFO L140 encePairwiseOnDemand]: 1099/1105 looper letters, 36 selfloop transitions, 1 changer transitions 24/268 dead transitions. [2024-11-22 18:06:40,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 268 transitions, 786 flow [2024-11-22 18:06:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:40,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:40,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2558 transitions. [2024-11-22 18:06:40,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716440422322776 [2024-11-22 18:06:40,851 INFO L175 Difference]: Start difference. First operand has 333 places, 273 transitions, 718 flow. Second operand 3 states and 2558 transitions. [2024-11-22 18:06:40,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 268 transitions, 786 flow [2024-11-22 18:06:40,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 268 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:40,854 INFO L231 Difference]: Finished difference. Result has 327 places, 244 transitions, 656 flow [2024-11-22 18:06:40,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=327, PETRI_TRANSITIONS=244} [2024-11-22 18:06:40,854 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -6 predicate places. [2024-11-22 18:06:40,854 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 244 transitions, 656 flow [2024-11-22 18:06:40,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 839.0) internal successors, (2517), 3 states have internal predecessors, (2517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:40,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:40,854 INFO L204 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:40,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-22 18:06:40,855 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-22 18:06:40,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1106291167, now seen corresponding path program 1 times [2024-11-22 18:06:40,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:40,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147162255] [2024-11-22 18:06:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5516 trivial. 0 not checked. [2024-11-22 18:06:40,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:40,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147162255] [2024-11-22 18:06:40,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147162255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:40,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:40,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:40,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068307450] [2024-11-22 18:06:40,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:40,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:40,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:40,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:40,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:40,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 926 out of 1105 [2024-11-22 18:06:40,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 244 transitions, 656 flow. Second operand has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:40,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:40,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 926 of 1105 [2024-11-22 18:06:40,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:41,090 INFO L124 PetriNetUnfolderBase]: 0/601 cut-off events. [2024-11-22 18:06:41,090 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2024-11-22 18:06:41,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 601 events. 0/601 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 335 event pairs, 0 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2024-11-22 18:06:41,091 INFO L140 encePairwiseOnDemand]: 1101/1105 looper letters, 32 selfloop transitions, 3 changer transitions 0/243 dead transitions. [2024-11-22 18:06:41,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 243 transitions, 724 flow [2024-11-22 18:06:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:41,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3740 transitions. [2024-11-22 18:06:41,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2024-11-22 18:06:41,093 INFO L175 Difference]: Start difference. First operand has 327 places, 244 transitions, 656 flow. Second operand 4 states and 3740 transitions. [2024-11-22 18:06:41,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 243 transitions, 724 flow [2024-11-22 18:06:41,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 243 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:41,095 INFO L231 Difference]: Finished difference. Result has 304 places, 243 transitions, 659 flow [2024-11-22 18:06:41,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=659, PETRI_PLACES=304, PETRI_TRANSITIONS=243} [2024-11-22 18:06:41,096 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -29 predicate places. [2024-11-22 18:06:41,096 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 243 transitions, 659 flow [2024-11-22 18:06:41,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:41,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:41,096 INFO L204 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:41,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-22 18:06:41,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-22 18:06:41,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:41,097 INFO L85 PathProgramCache]: Analyzing trace with hash -401159326, now seen corresponding path program 1 times [2024-11-22 18:06:41,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:41,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566461116] [2024-11-22 18:06:41,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:41,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:41,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:41,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:41,213 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:41,213 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-22 18:06:41,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-22 18:06:41,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-22 18:06:41,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-22 18:06:41,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-22 18:06:41,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-22 18:06:41,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-22 18:06:41,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-22 18:06:41,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-22 18:06:41,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-22 18:06:41,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-22 18:06:41,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-22 18:06:41,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-22 18:06:41,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-22 18:06:41,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-22 18:06:41,215 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:41,215 WARN L244 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:41,215 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-11-22 18:06:41,311 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:41,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1141 places, 1142 transitions, 4140 flow [2024-11-22 18:06:41,597 INFO L124 PetriNetUnfolderBase]: 152/1948 cut-off events. [2024-11-22 18:06:41,597 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2024-11-22 18:06:41,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2531 conditions, 1948 events. 152/1948 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5451 event pairs, 0 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 2472. Up to 60 conditions per place. [2024-11-22 18:06:41,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 1141 places, 1142 transitions, 4140 flow [2024-11-22 18:06:41,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 342 places, 285 transitions, 1501 flow [2024-11-22 18:06:41,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:41,622 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:41,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-22 18:06:41,623 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:41,623 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:41,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:41,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:41,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:41,623 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-22 18:06:41,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash -369728693, now seen corresponding path program 1 times [2024-11-22 18:06:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:41,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031452045] [2024-11-22 18:06:41,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:41,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:41,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:41,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031452045] [2024-11-22 18:06:41,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031452045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:41,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:41,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:41,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715716726] [2024-11-22 18:06:41,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:41,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:41,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:41,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:41,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:41,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 926 out of 1142 [2024-11-22 18:06:41,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 285 transitions, 1501 flow. Second operand has 3 states, 3 states have (on average 927.3333333333334) internal successors, (2782), 3 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:41,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:41,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 926 of 1142 [2024-11-22 18:06:41,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:41,975 INFO L124 PetriNetUnfolderBase]: 61/1496 cut-off events. [2024-11-22 18:06:41,975 INFO L125 PetriNetUnfolderBase]: For 4931/4931 co-relation queries the response was YES. [2024-11-22 18:06:41,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 1496 events. 61/1496 cut-off events. For 4931/4931 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4128 event pairs, 30 based on Foata normal form. 31/1402 useless extension candidates. Maximal degree in co-relation 2148. Up to 216 conditions per place. [2024-11-22 18:06:41,992 INFO L140 encePairwiseOnDemand]: 1136/1142 looper letters, 39 selfloop transitions, 2 changer transitions 1/281 dead transitions. [2024-11-22 18:06:41,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 281 transitions, 1575 flow [2024-11-22 18:06:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2823 transitions. [2024-11-22 18:06:41,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8239929947460596 [2024-11-22 18:06:41,993 INFO L175 Difference]: Start difference. First operand has 342 places, 285 transitions, 1501 flow. Second operand 3 states and 2823 transitions. [2024-11-22 18:06:41,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 281 transitions, 1575 flow [2024-11-22 18:06:41,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 281 transitions, 818 flow, removed 378 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:42,001 INFO L231 Difference]: Finished difference. Result has 342 places, 280 transitions, 738 flow [2024-11-22 18:06:42,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=342, PETRI_TRANSITIONS=280} [2024-11-22 18:06:42,001 INFO L277 CegarLoopForPetriNet]: 342 programPoint places, 0 predicate places. [2024-11-22 18:06:42,001 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 280 transitions, 738 flow [2024-11-22 18:06:42,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 927.3333333333334) internal successors, (2782), 3 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:42,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:42,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:42,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-22 18:06:42,002 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-22 18:06:42,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2021757376, now seen corresponding path program 1 times [2024-11-22 18:06:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:42,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667400150] [2024-11-22 18:06:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:42,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:42,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:42,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667400150] [2024-11-22 18:06:42,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667400150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:42,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:42,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:42,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318897211] [2024-11-22 18:06:42,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:42,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:42,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:42,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:42,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1142 [2024-11-22 18:06:42,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 280 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 867.0) internal successors, (2601), 3 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:42,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:42,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1142 [2024-11-22 18:06:42,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:42,378 INFO L124 PetriNetUnfolderBase]: 31/1342 cut-off events. [2024-11-22 18:06:42,378 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-22 18:06:42,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 1342 events. 31/1342 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3108 event pairs, 0 based on Foata normal form. 30/1311 useless extension candidates. Maximal degree in co-relation 1628. Up to 155 conditions per place. [2024-11-22 18:06:42,391 INFO L140 encePairwiseOnDemand]: 1136/1142 looper letters, 37 selfloop transitions, 1 changer transitions 24/275 dead transitions. [2024-11-22 18:06:42,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 275 transitions, 808 flow [2024-11-22 18:06:42,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2643 transitions. [2024-11-22 18:06:42,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7714535901926445 [2024-11-22 18:06:42,393 INFO L175 Difference]: Start difference. First operand has 342 places, 280 transitions, 738 flow. Second operand 3 states and 2643 transitions. [2024-11-22 18:06:42,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 275 transitions, 808 flow [2024-11-22 18:06:42,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 275 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:42,396 INFO L231 Difference]: Finished difference. Result has 336 places, 251 transitions, 676 flow [2024-11-22 18:06:42,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=336, PETRI_TRANSITIONS=251} [2024-11-22 18:06:42,396 INFO L277 CegarLoopForPetriNet]: 342 programPoint places, -6 predicate places. [2024-11-22 18:06:42,396 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 251 transitions, 676 flow [2024-11-22 18:06:42,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 867.0) internal successors, (2601), 3 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:42,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:42,397 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:42,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-22 18:06:42,397 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-22 18:06:42,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:42,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1845443679, now seen corresponding path program 1 times [2024-11-22 18:06:42,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:42,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281191745] [2024-11-22 18:06:42,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:42,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 5916 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5916 trivial. 0 not checked. [2024-11-22 18:06:42,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:42,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281191745] [2024-11-22 18:06:42,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281191745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:42,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:42,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:42,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477397813] [2024-11-22 18:06:42,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:42,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:42,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:42,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:42,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 957 out of 1142 [2024-11-22 18:06:42,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 251 transitions, 676 flow. Second operand has 4 states, 4 states have (on average 965.75) internal successors, (3863), 4 states have internal predecessors, (3863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:42,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:42,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 957 of 1142 [2024-11-22 18:06:42,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:42,676 INFO L124 PetriNetUnfolderBase]: 0/621 cut-off events. [2024-11-22 18:06:42,677 INFO L125 PetriNetUnfolderBase]: For 491/491 co-relation queries the response was YES. [2024-11-22 18:06:42,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 621 events. 0/621 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 347 event pairs, 0 based on Foata normal form. 0/621 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2024-11-22 18:06:42,678 INFO L140 encePairwiseOnDemand]: 1138/1142 looper letters, 33 selfloop transitions, 3 changer transitions 0/250 dead transitions. [2024-11-22 18:06:42,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 250 transitions, 746 flow [2024-11-22 18:06:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:42,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3865 transitions. [2024-11-22 18:06:42,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8461033274956217 [2024-11-22 18:06:42,679 INFO L175 Difference]: Start difference. First operand has 336 places, 251 transitions, 676 flow. Second operand 4 states and 3865 transitions. [2024-11-22 18:06:42,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 250 transitions, 746 flow [2024-11-22 18:06:42,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 250 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:42,682 INFO L231 Difference]: Finished difference. Result has 313 places, 250 transitions, 679 flow [2024-11-22 18:06:42,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=679, PETRI_PLACES=313, PETRI_TRANSITIONS=250} [2024-11-22 18:06:42,682 INFO L277 CegarLoopForPetriNet]: 342 programPoint places, -29 predicate places. [2024-11-22 18:06:42,683 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 250 transitions, 679 flow [2024-11-22 18:06:42,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 965.75) internal successors, (3863), 4 states have internal predecessors, (3863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:42,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:42,683 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:42,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-22 18:06:42,683 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-22 18:06:42,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:42,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1656769386, now seen corresponding path program 1 times [2024-11-22 18:06:42,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:42,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798040847] [2024-11-22 18:06:42,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:42,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:42,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:42,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:42,805 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:42,805 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-22 18:06:42,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-22 18:06:42,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-22 18:06:42,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-22 18:06:42,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-22 18:06:42,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-22 18:06:42,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-22 18:06:42,808 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:42,809 WARN L244 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:42,809 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-11-22 18:06:42,919 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:42,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1178 places, 1179 transitions, 4338 flow [2024-11-22 18:06:43,228 INFO L124 PetriNetUnfolderBase]: 157/2012 cut-off events. [2024-11-22 18:06:43,228 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2024-11-22 18:06:43,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 2012 events. 157/2012 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5607 event pairs, 0 based on Foata normal form. 0/1758 useless extension candidates. Maximal degree in co-relation 2569. Up to 62 conditions per place. [2024-11-22 18:06:43,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 1178 places, 1179 transitions, 4338 flow [2024-11-22 18:06:43,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 351 places, 292 transitions, 1577 flow [2024-11-22 18:06:43,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:43,254 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:43,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-22 18:06:43,254 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:43,255 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:43,255 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:43,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:43,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:43,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:06:43,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash -822988053, now seen corresponding path program 1 times [2024-11-22 18:06:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:43,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77314252] [2024-11-22 18:06:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:43,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:43,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77314252] [2024-11-22 18:06:43,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77314252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:43,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:43,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:43,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598468514] [2024-11-22 18:06:43,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:43,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:43,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:43,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:43,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 956 out of 1179 [2024-11-22 18:06:43,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 292 transitions, 1577 flow. Second operand has 3 states, 3 states have (on average 957.3333333333334) internal successors, (2872), 3 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:43,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:43,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 956 of 1179 [2024-11-22 18:06:43,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:43,619 INFO L124 PetriNetUnfolderBase]: 63/1545 cut-off events. [2024-11-22 18:06:43,619 INFO L125 PetriNetUnfolderBase]: For 5426/5426 co-relation queries the response was YES. [2024-11-22 18:06:43,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2359 conditions, 1545 events. 63/1545 cut-off events. For 5426/5426 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4277 event pairs, 31 based on Foata normal form. 32/1448 useless extension candidates. Maximal degree in co-relation 2236. Up to 223 conditions per place. [2024-11-22 18:06:43,636 INFO L140 encePairwiseOnDemand]: 1173/1179 looper letters, 40 selfloop transitions, 2 changer transitions 1/288 dead transitions. [2024-11-22 18:06:43,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 288 transitions, 1653 flow [2024-11-22 18:06:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2914 transitions. [2024-11-22 18:06:43,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8238620299689002 [2024-11-22 18:06:43,638 INFO L175 Difference]: Start difference. First operand has 351 places, 292 transitions, 1577 flow. Second operand 3 states and 2914 transitions. [2024-11-22 18:06:43,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 288 transitions, 1653 flow [2024-11-22 18:06:43,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 288 transitions, 840 flow, removed 406 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:43,647 INFO L231 Difference]: Finished difference. Result has 351 places, 287 transitions, 758 flow [2024-11-22 18:06:43,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=351, PETRI_TRANSITIONS=287} [2024-11-22 18:06:43,647 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 0 predicate places. [2024-11-22 18:06:43,647 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 287 transitions, 758 flow [2024-11-22 18:06:43,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 957.3333333333334) internal successors, (2872), 3 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:43,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:43,648 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:43,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-11-22 18:06:43,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:06:43,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:43,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1944454309, now seen corresponding path program 1 times [2024-11-22 18:06:43,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:43,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487382443] [2024-11-22 18:06:43,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:43,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:43,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:43,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487382443] [2024-11-22 18:06:43,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487382443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:43,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:43,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:43,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934973470] [2024-11-22 18:06:43,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:43,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:43,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:43,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:43,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 1179 [2024-11-22 18:06:43,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 287 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:43,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:43,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 1179 [2024-11-22 18:06:43,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:44,102 INFO L124 PetriNetUnfolderBase]: 32/1386 cut-off events. [2024-11-22 18:06:44,102 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-11-22 18:06:44,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 1386 events. 32/1386 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3214 event pairs, 0 based on Foata normal form. 31/1354 useless extension candidates. Maximal degree in co-relation 1682. Up to 160 conditions per place. [2024-11-22 18:06:44,109 INFO L140 encePairwiseOnDemand]: 1173/1179 looper letters, 38 selfloop transitions, 1 changer transitions 24/282 dead transitions. [2024-11-22 18:06:44,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 282 transitions, 830 flow [2024-11-22 18:06:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2728 transitions. [2024-11-22 18:06:44,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7712750918857789 [2024-11-22 18:06:44,111 INFO L175 Difference]: Start difference. First operand has 351 places, 287 transitions, 758 flow. Second operand 3 states and 2728 transitions. [2024-11-22 18:06:44,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 282 transitions, 830 flow [2024-11-22 18:06:44,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 282 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:44,115 INFO L231 Difference]: Finished difference. Result has 345 places, 258 transitions, 696 flow [2024-11-22 18:06:44,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=345, PETRI_TRANSITIONS=258} [2024-11-22 18:06:44,116 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -6 predicate places. [2024-11-22 18:06:44,116 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 258 transitions, 696 flow [2024-11-22 18:06:44,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:44,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:44,116 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:44,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-11-22 18:06:44,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:06:44,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1076413636, now seen corresponding path program 1 times [2024-11-22 18:06:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:44,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398266322] [2024-11-22 18:06:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:44,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6330 trivial. 0 not checked. [2024-11-22 18:06:44,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:44,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398266322] [2024-11-22 18:06:44,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398266322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:44,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:44,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:44,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628957546] [2024-11-22 18:06:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:44,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:44,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:44,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:44,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 988 out of 1179 [2024-11-22 18:06:44,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 258 transitions, 696 flow. Second operand has 4 states, 4 states have (on average 997.0) internal successors, (3988), 4 states have internal predecessors, (3988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:44,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:44,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 988 of 1179 [2024-11-22 18:06:44,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:44,491 INFO L124 PetriNetUnfolderBase]: 0/641 cut-off events. [2024-11-22 18:06:44,491 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-22 18:06:44,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 641 events. 0/641 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 359 event pairs, 0 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2024-11-22 18:06:44,492 INFO L140 encePairwiseOnDemand]: 1175/1179 looper letters, 34 selfloop transitions, 3 changer transitions 0/257 dead transitions. [2024-11-22 18:06:44,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 257 transitions, 768 flow [2024-11-22 18:06:44,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:44,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:44,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3990 transitions. [2024-11-22 18:06:44,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8460559796437659 [2024-11-22 18:06:44,495 INFO L175 Difference]: Start difference. First operand has 345 places, 258 transitions, 696 flow. Second operand 4 states and 3990 transitions. [2024-11-22 18:06:44,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 257 transitions, 768 flow [2024-11-22 18:06:44,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 257 transitions, 767 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:44,499 INFO L231 Difference]: Finished difference. Result has 322 places, 257 transitions, 699 flow [2024-11-22 18:06:44,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=699, PETRI_PLACES=322, PETRI_TRANSITIONS=257} [2024-11-22 18:06:44,500 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -29 predicate places. [2024-11-22 18:06:44,500 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 257 transitions, 699 flow [2024-11-22 18:06:44,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 997.0) internal successors, (3988), 4 states have internal predecessors, (3988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:44,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:44,500 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:44,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-11-22 18:06:44,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:06:44,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1373603786, now seen corresponding path program 1 times [2024-11-22 18:06:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:44,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675378462] [2024-11-22 18:06:44,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:44,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:44,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:44,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:44,669 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:44,669 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-22 18:06:44,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-22 18:06:44,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-22 18:06:44,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-22 18:06:44,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-22 18:06:44,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-22 18:06:44,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-22 18:06:44,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-22 18:06:44,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-22 18:06:44,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-22 18:06:44,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-22 18:06:44,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-22 18:06:44,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-22 18:06:44,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-22 18:06:44,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-11-22 18:06:44,673 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:44,673 WARN L244 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:44,673 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-11-22 18:06:44,785 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:44,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1215 places, 1216 transitions, 4540 flow [2024-11-22 18:06:45,256 INFO L124 PetriNetUnfolderBase]: 162/2076 cut-off events. [2024-11-22 18:06:45,256 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2024-11-22 18:06:45,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 2076 events. 162/2076 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5920 event pairs, 0 based on Foata normal form. 0/1814 useless extension candidates. Maximal degree in co-relation 2667. Up to 64 conditions per place. [2024-11-22 18:06:45,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 1215 places, 1216 transitions, 4540 flow [2024-11-22 18:06:45,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 299 transitions, 1655 flow [2024-11-22 18:06:45,286 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:45,286 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:45,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-22 18:06:45,287 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:45,288 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:45,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:45,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:45,288 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:45,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-22 18:06:45,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:45,288 INFO L85 PathProgramCache]: Analyzing trace with hash 439900907, now seen corresponding path program 1 times [2024-11-22 18:06:45,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:45,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188373485] [2024-11-22 18:06:45,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:45,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:45,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:45,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188373485] [2024-11-22 18:06:45,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188373485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:45,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:45,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423822390] [2024-11-22 18:06:45,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:45,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:45,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:45,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1216 [2024-11-22 18:06:45,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 299 transitions, 1655 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:45,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:45,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1216 [2024-11-22 18:06:45,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:45,836 INFO L124 PetriNetUnfolderBase]: 65/1594 cut-off events. [2024-11-22 18:06:45,837 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES. [2024-11-22 18:06:45,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 1594 events. 65/1594 cut-off events. For 5953/5953 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4375 event pairs, 32 based on Foata normal form. 33/1494 useless extension candidates. Maximal degree in co-relation 2325. Up to 230 conditions per place. [2024-11-22 18:06:45,857 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 41 selfloop transitions, 2 changer transitions 1/295 dead transitions. [2024-11-22 18:06:45,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 295 transitions, 1733 flow [2024-11-22 18:06:45,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3005 transitions. [2024-11-22 18:06:45,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8237390350877193 [2024-11-22 18:06:45,860 INFO L175 Difference]: Start difference. First operand has 360 places, 299 transitions, 1655 flow. Second operand 3 states and 3005 transitions. [2024-11-22 18:06:45,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 295 transitions, 1733 flow [2024-11-22 18:06:45,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 295 transitions, 862 flow, removed 435 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:45,872 INFO L231 Difference]: Finished difference. Result has 360 places, 294 transitions, 778 flow [2024-11-22 18:06:45,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=360, PETRI_TRANSITIONS=294} [2024-11-22 18:06:45,873 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, 0 predicate places. [2024-11-22 18:06:45,873 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 294 transitions, 778 flow [2024-11-22 18:06:45,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:45,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:45,874 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:45,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-11-22 18:06:45,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-22 18:06:45,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1163214875, now seen corresponding path program 1 times [2024-11-22 18:06:45,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:45,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139799919] [2024-11-22 18:06:45,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:45,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:45,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:45,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139799919] [2024-11-22 18:06:45,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139799919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:45,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:45,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:45,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473836232] [2024-11-22 18:06:45,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:45,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:45,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:45,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:45,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:45,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 922 out of 1216 [2024-11-22 18:06:45,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 294 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 923.0) internal successors, (2769), 3 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:45,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:45,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 922 of 1216 [2024-11-22 18:06:45,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:46,221 INFO L124 PetriNetUnfolderBase]: 33/1430 cut-off events. [2024-11-22 18:06:46,221 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-22 18:06:46,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1788 conditions, 1430 events. 33/1430 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3294 event pairs, 0 based on Foata normal form. 32/1397 useless extension candidates. Maximal degree in co-relation 1736. Up to 165 conditions per place. [2024-11-22 18:06:46,236 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 39 selfloop transitions, 1 changer transitions 24/289 dead transitions. [2024-11-22 18:06:46,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 289 transitions, 852 flow [2024-11-22 18:06:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2813 transitions. [2024-11-22 18:06:46,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7711074561403509 [2024-11-22 18:06:46,238 INFO L175 Difference]: Start difference. First operand has 360 places, 294 transitions, 778 flow. Second operand 3 states and 2813 transitions. [2024-11-22 18:06:46,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 289 transitions, 852 flow [2024-11-22 18:06:46,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 289 transitions, 848 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:46,241 INFO L231 Difference]: Finished difference. Result has 354 places, 265 transitions, 716 flow [2024-11-22 18:06:46,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=354, PETRI_TRANSITIONS=265} [2024-11-22 18:06:46,242 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -6 predicate places. [2024-11-22 18:06:46,242 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 265 transitions, 716 flow [2024-11-22 18:06:46,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 923.0) internal successors, (2769), 3 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:46,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:46,242 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:46,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-11-22 18:06:46,242 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-22 18:06:46,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1479159536, now seen corresponding path program 1 times [2024-11-22 18:06:46,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:46,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864088344] [2024-11-22 18:06:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:46,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6758 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6758 trivial. 0 not checked. [2024-11-22 18:06:46,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:46,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864088344] [2024-11-22 18:06:46,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864088344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:46,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:46,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:46,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521693112] [2024-11-22 18:06:46,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:46,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:46,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:46,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:46,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:46,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1216 [2024-11-22 18:06:46,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 265 transitions, 716 flow. Second operand has 4 states, 4 states have (on average 1028.25) internal successors, (4113), 4 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:46,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:46,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1216 [2024-11-22 18:06:46,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:46,516 INFO L124 PetriNetUnfolderBase]: 0/661 cut-off events. [2024-11-22 18:06:46,517 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-22 18:06:46,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 661 events. 0/661 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 372 event pairs, 0 based on Foata normal form. 0/661 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2024-11-22 18:06:46,517 INFO L140 encePairwiseOnDemand]: 1212/1216 looper letters, 35 selfloop transitions, 3 changer transitions 0/264 dead transitions. [2024-11-22 18:06:46,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 264 transitions, 790 flow [2024-11-22 18:06:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:46,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4115 transitions. [2024-11-22 18:06:46,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8460115131578947 [2024-11-22 18:06:46,519 INFO L175 Difference]: Start difference. First operand has 354 places, 265 transitions, 716 flow. Second operand 4 states and 4115 transitions. [2024-11-22 18:06:46,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 264 transitions, 790 flow [2024-11-22 18:06:46,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 264 transitions, 789 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:46,522 INFO L231 Difference]: Finished difference. Result has 331 places, 264 transitions, 719 flow [2024-11-22 18:06:46,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=719, PETRI_PLACES=331, PETRI_TRANSITIONS=264} [2024-11-22 18:06:46,523 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-22 18:06:46,523 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 264 transitions, 719 flow [2024-11-22 18:06:46,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1028.25) internal successors, (4113), 4 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:46,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:46,523 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:46,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-11-22 18:06:46,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-22 18:06:46,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1589633118, now seen corresponding path program 1 times [2024-11-22 18:06:46,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:46,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145842442] [2024-11-22 18:06:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:46,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:46,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:46,722 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-22 18:06:46,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-22 18:06:46,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-22 18:06:46,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-22 18:06:46,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-22 18:06:46,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-22 18:06:46,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-22 18:06:46,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-22 18:06:46,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-22 18:06:46,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-22 18:06:46,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-11-22 18:06:46,724 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:46,724 WARN L244 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:46,724 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-11-22 18:06:46,820 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:46,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1252 places, 1253 transitions, 4746 flow [2024-11-22 18:06:47,149 INFO L124 PetriNetUnfolderBase]: 167/2140 cut-off events. [2024-11-22 18:06:47,149 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2024-11-22 18:06:47,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2831 conditions, 2140 events. 167/2140 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5962 event pairs, 0 based on Foata normal form. 0/1870 useless extension candidates. Maximal degree in co-relation 2766. Up to 66 conditions per place. [2024-11-22 18:06:47,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 1252 places, 1253 transitions, 4746 flow [2024-11-22 18:06:47,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 306 transitions, 1735 flow [2024-11-22 18:06:47,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:47,178 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:47,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-22 18:06:47,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:47,179 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:47,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:47,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:47,179 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:47,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-22 18:06:47,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:47,179 INFO L85 PathProgramCache]: Analyzing trace with hash -876029109, now seen corresponding path program 1 times [2024-11-22 18:06:47,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:47,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192101796] [2024-11-22 18:06:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:47,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:47,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:47,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:47,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192101796] [2024-11-22 18:06:47,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192101796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:47,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:47,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:47,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065774328] [2024-11-22 18:06:47,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:47,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:47,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:47,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:47,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:47,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1253 [2024-11-22 18:06:47,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 306 transitions, 1735 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:47,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:47,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1253 [2024-11-22 18:06:47,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:47,568 INFO L124 PetriNetUnfolderBase]: 67/1643 cut-off events. [2024-11-22 18:06:47,568 INFO L125 PetriNetUnfolderBase]: For 6513/6513 co-relation queries the response was YES. [2024-11-22 18:06:47,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2542 conditions, 1643 events. 67/1643 cut-off events. For 6513/6513 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4634 event pairs, 33 based on Foata normal form. 67/1573 useless extension candidates. Maximal degree in co-relation 2415. Up to 237 conditions per place. [2024-11-22 18:06:47,586 INFO L140 encePairwiseOnDemand]: 1247/1253 looper letters, 42 selfloop transitions, 2 changer transitions 1/302 dead transitions. [2024-11-22 18:06:47,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 302 transitions, 1815 flow [2024-11-22 18:06:47,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3096 transitions. [2024-11-22 18:06:47,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8236233040702314 [2024-11-22 18:06:47,587 INFO L175 Difference]: Start difference. First operand has 369 places, 306 transitions, 1735 flow. Second operand 3 states and 3096 transitions. [2024-11-22 18:06:47,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 302 transitions, 1815 flow [2024-11-22 18:06:47,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 302 transitions, 884 flow, removed 465 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:47,597 INFO L231 Difference]: Finished difference. Result has 369 places, 301 transitions, 798 flow [2024-11-22 18:06:47,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=369, PETRI_TRANSITIONS=301} [2024-11-22 18:06:47,597 INFO L277 CegarLoopForPetriNet]: 369 programPoint places, 0 predicate places. [2024-11-22 18:06:47,597 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 301 transitions, 798 flow [2024-11-22 18:06:47,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:47,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:47,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:47,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-11-22 18:06:47,598 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-22 18:06:47,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1540136960, now seen corresponding path program 1 times [2024-11-22 18:06:47,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:47,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380766048] [2024-11-22 18:06:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:47,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:47,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:47,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380766048] [2024-11-22 18:06:47,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380766048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:47,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:47,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:47,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548964750] [2024-11-22 18:06:47,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:47,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:47,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:47,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:47,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:47,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 950 out of 1253 [2024-11-22 18:06:47,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 301 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 951.0) internal successors, (2853), 3 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:47,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:47,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 950 of 1253 [2024-11-22 18:06:47,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:47,937 INFO L124 PetriNetUnfolderBase]: 34/1474 cut-off events. [2024-11-22 18:06:47,938 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-22 18:06:47,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1843 conditions, 1474 events. 34/1474 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3493 event pairs, 0 based on Foata normal form. 33/1440 useless extension candidates. Maximal degree in co-relation 1790. Up to 170 conditions per place. [2024-11-22 18:06:47,952 INFO L140 encePairwiseOnDemand]: 1247/1253 looper letters, 40 selfloop transitions, 1 changer transitions 24/296 dead transitions. [2024-11-22 18:06:47,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 296 transitions, 874 flow [2024-11-22 18:06:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:47,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:47,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2898 transitions. [2024-11-22 18:06:47,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.770949720670391 [2024-11-22 18:06:47,953 INFO L175 Difference]: Start difference. First operand has 369 places, 301 transitions, 798 flow. Second operand 3 states and 2898 transitions. [2024-11-22 18:06:47,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 296 transitions, 874 flow [2024-11-22 18:06:47,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 296 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:47,956 INFO L231 Difference]: Finished difference. Result has 363 places, 272 transitions, 736 flow [2024-11-22 18:06:47,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=363, PETRI_TRANSITIONS=272} [2024-11-22 18:06:47,957 INFO L277 CegarLoopForPetriNet]: 369 programPoint places, -6 predicate places. [2024-11-22 18:06:47,957 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 272 transitions, 736 flow [2024-11-22 18:06:47,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 951.0) internal successors, (2853), 3 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:47,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:47,957 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:47,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-11-22 18:06:47,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-22 18:06:47,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:47,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1978492285, now seen corresponding path program 1 times [2024-11-22 18:06:47,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:47,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060205695] [2024-11-22 18:06:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:47,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2024-11-22 18:06:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060205695] [2024-11-22 18:06:48,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060205695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:48,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:48,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:48,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830572253] [2024-11-22 18:06:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:48,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:48,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:48,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:48,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1050 out of 1253 [2024-11-22 18:06:48,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 272 transitions, 736 flow. Second operand has 4 states, 4 states have (on average 1059.5) internal successors, (4238), 4 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:48,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:48,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1050 of 1253 [2024-11-22 18:06:48,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:48,225 INFO L124 PetriNetUnfolderBase]: 0/681 cut-off events. [2024-11-22 18:06:48,225 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-22 18:06:48,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 681 events. 0/681 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 383 event pairs, 0 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2024-11-22 18:06:48,226 INFO L140 encePairwiseOnDemand]: 1249/1253 looper letters, 36 selfloop transitions, 3 changer transitions 0/271 dead transitions. [2024-11-22 18:06:48,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 271 transitions, 812 flow [2024-11-22 18:06:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:48,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4240 transitions. [2024-11-22 18:06:48,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8459696727853152 [2024-11-22 18:06:48,228 INFO L175 Difference]: Start difference. First operand has 363 places, 272 transitions, 736 flow. Second operand 4 states and 4240 transitions. [2024-11-22 18:06:48,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 271 transitions, 812 flow [2024-11-22 18:06:48,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 271 transitions, 811 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:48,231 INFO L231 Difference]: Finished difference. Result has 340 places, 271 transitions, 739 flow [2024-11-22 18:06:48,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=340, PETRI_TRANSITIONS=271} [2024-11-22 18:06:48,231 INFO L277 CegarLoopForPetriNet]: 369 programPoint places, -29 predicate places. [2024-11-22 18:06:48,232 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 271 transitions, 739 flow [2024-11-22 18:06:48,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1059.5) internal successors, (4238), 4 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:48,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:48,232 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:48,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-11-22 18:06:48,232 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-22 18:06:48,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:48,232 INFO L85 PathProgramCache]: Analyzing trace with hash -362908614, now seen corresponding path program 1 times [2024-11-22 18:06:48,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:48,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274368532] [2024-11-22 18:06:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:48,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:48,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:48,371 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-22 18:06:48,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-22 18:06:48,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-22 18:06:48,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-22 18:06:48,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-22 18:06:48,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-11-22 18:06:48,373 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:48,373 WARN L244 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:48,373 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-11-22 18:06:48,460 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:48,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1289 places, 1290 transitions, 4956 flow [2024-11-22 18:06:48,883 INFO L124 PetriNetUnfolderBase]: 172/2204 cut-off events. [2024-11-22 18:06:48,883 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2024-11-22 18:06:48,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2933 conditions, 2204 events. 172/2204 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6294 event pairs, 0 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2866. Up to 68 conditions per place. [2024-11-22 18:06:48,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 1289 places, 1290 transitions, 4956 flow [2024-11-22 18:06:48,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 378 places, 313 transitions, 1817 flow [2024-11-22 18:06:48,902 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:48,903 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:48,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-22 18:06:48,903 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:48,903 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:48,904 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:48,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:48,904 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:48,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-22 18:06:48,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash -475810805, now seen corresponding path program 1 times [2024-11-22 18:06:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:48,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764391584] [2024-11-22 18:06:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:48,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:48,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:48,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764391584] [2024-11-22 18:06:48,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764391584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:48,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:48,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971454259] [2024-11-22 18:06:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:48,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:48,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:48,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:48,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:49,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1046 out of 1290 [2024-11-22 18:06:49,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 313 transitions, 1817 flow. Second operand has 3 states, 3 states have (on average 1047.3333333333333) internal successors, (3142), 3 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:49,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:49,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1046 of 1290 [2024-11-22 18:06:49,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:49,309 INFO L124 PetriNetUnfolderBase]: 69/1692 cut-off events. [2024-11-22 18:06:49,309 INFO L125 PetriNetUnfolderBase]: For 7107/7107 co-relation queries the response was YES. [2024-11-22 18:06:49,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1692 events. 69/1692 cut-off events. For 7107/7107 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4796 event pairs, 34 based on Foata normal form. 69/1620 useless extension candidates. Maximal degree in co-relation 2506. Up to 244 conditions per place. [2024-11-22 18:06:49,328 INFO L140 encePairwiseOnDemand]: 1284/1290 looper letters, 43 selfloop transitions, 2 changer transitions 1/309 dead transitions. [2024-11-22 18:06:49,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 309 transitions, 1899 flow [2024-11-22 18:06:49,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:49,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3187 transitions. [2024-11-22 18:06:49,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8235142118863049 [2024-11-22 18:06:49,330 INFO L175 Difference]: Start difference. First operand has 378 places, 313 transitions, 1817 flow. Second operand 3 states and 3187 transitions. [2024-11-22 18:06:49,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 309 transitions, 1899 flow [2024-11-22 18:06:49,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 309 transitions, 906 flow, removed 496 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:49,340 INFO L231 Difference]: Finished difference. Result has 378 places, 308 transitions, 818 flow [2024-11-22 18:06:49,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=818, PETRI_PLACES=378, PETRI_TRANSITIONS=308} [2024-11-22 18:06:49,341 INFO L277 CegarLoopForPetriNet]: 378 programPoint places, 0 predicate places. [2024-11-22 18:06:49,341 INFO L471 AbstractCegarLoop]: Abstraction has has 378 places, 308 transitions, 818 flow [2024-11-22 18:06:49,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1047.3333333333333) internal successors, (3142), 3 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:49,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:49,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:49,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-11-22 18:06:49,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-22 18:06:49,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1464575222, now seen corresponding path program 1 times [2024-11-22 18:06:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:49,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12841797] [2024-11-22 18:06:49,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:49,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:49,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:49,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12841797] [2024-11-22 18:06:49,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12841797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:49,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:49,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:49,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225599932] [2024-11-22 18:06:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:49,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:49,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:49,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:49,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:49,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 978 out of 1290 [2024-11-22 18:06:49,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 308 transitions, 818 flow. Second operand has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:49,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:49,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 978 of 1290 [2024-11-22 18:06:49,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:49,710 INFO L124 PetriNetUnfolderBase]: 35/1518 cut-off events. [2024-11-22 18:06:49,710 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-22 18:06:49,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1898 conditions, 1518 events. 35/1518 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3567 event pairs, 0 based on Foata normal form. 34/1483 useless extension candidates. Maximal degree in co-relation 1844. Up to 175 conditions per place. [2024-11-22 18:06:49,725 INFO L140 encePairwiseOnDemand]: 1284/1290 looper letters, 41 selfloop transitions, 1 changer transitions 24/303 dead transitions. [2024-11-22 18:06:49,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 303 transitions, 896 flow [2024-11-22 18:06:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2983 transitions. [2024-11-22 18:06:49,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7708010335917312 [2024-11-22 18:06:49,726 INFO L175 Difference]: Start difference. First operand has 378 places, 308 transitions, 818 flow. Second operand 3 states and 2983 transitions. [2024-11-22 18:06:49,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 303 transitions, 896 flow [2024-11-22 18:06:49,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 303 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:49,729 INFO L231 Difference]: Finished difference. Result has 372 places, 279 transitions, 756 flow [2024-11-22 18:06:49,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=372, PETRI_TRANSITIONS=279} [2024-11-22 18:06:49,730 INFO L277 CegarLoopForPetriNet]: 378 programPoint places, -6 predicate places. [2024-11-22 18:06:49,730 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 279 transitions, 756 flow [2024-11-22 18:06:49,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:49,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:49,730 INFO L204 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:49,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-11-22 18:06:49,730 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-22 18:06:49,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:49,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1629357853, now seen corresponding path program 1 times [2024-11-22 18:06:49,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:49,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097562344] [2024-11-22 18:06:49,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:49,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:49,818 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2024-11-22 18:06:49,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:49,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097562344] [2024-11-22 18:06:49,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097562344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:49,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:49,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:49,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844992013] [2024-11-22 18:06:49,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:49,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:49,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:49,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:49,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:49,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1081 out of 1290 [2024-11-22 18:06:49,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 279 transitions, 756 flow. Second operand has 4 states, 4 states have (on average 1090.75) internal successors, (4363), 4 states have internal predecessors, (4363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:49,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:49,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1081 of 1290 [2024-11-22 18:06:49,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:50,012 INFO L124 PetriNetUnfolderBase]: 0/701 cut-off events. [2024-11-22 18:06:50,012 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2024-11-22 18:06:50,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 701 events. 0/701 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 395 event pairs, 0 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2024-11-22 18:06:50,012 INFO L140 encePairwiseOnDemand]: 1286/1290 looper letters, 37 selfloop transitions, 3 changer transitions 0/278 dead transitions. [2024-11-22 18:06:50,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 278 transitions, 834 flow [2024-11-22 18:06:50,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4365 transitions. [2024-11-22 18:06:50,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8459302325581395 [2024-11-22 18:06:50,014 INFO L175 Difference]: Start difference. First operand has 372 places, 279 transitions, 756 flow. Second operand 4 states and 4365 transitions. [2024-11-22 18:06:50,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 278 transitions, 834 flow [2024-11-22 18:06:50,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 278 transitions, 833 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:50,017 INFO L231 Difference]: Finished difference. Result has 349 places, 278 transitions, 759 flow [2024-11-22 18:06:50,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=759, PETRI_PLACES=349, PETRI_TRANSITIONS=278} [2024-11-22 18:06:50,018 INFO L277 CegarLoopForPetriNet]: 378 programPoint places, -29 predicate places. [2024-11-22 18:06:50,018 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 278 transitions, 759 flow [2024-11-22 18:06:50,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1090.75) internal successors, (4363), 4 states have internal predecessors, (4363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:50,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:50,018 INFO L204 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:50,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-11-22 18:06:50,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-22 18:06:50,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -105382050, now seen corresponding path program 1 times [2024-11-22 18:06:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:50,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933273377] [2024-11-22 18:06:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:50,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:50,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:50,161 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-22 18:06:50,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-22 18:06:50,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-22 18:06:50,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-11-22 18:06:50,163 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:50,163 WARN L244 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:50,163 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-11-22 18:06:50,260 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:50,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1326 places, 1327 transitions, 5170 flow [2024-11-22 18:06:50,620 INFO L124 PetriNetUnfolderBase]: 177/2268 cut-off events. [2024-11-22 18:06:50,620 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2024-11-22 18:06:50,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3036 conditions, 2268 events. 177/2268 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6382 event pairs, 0 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 2967. Up to 70 conditions per place. [2024-11-22 18:06:50,647 INFO L82 GeneralOperation]: Start removeDead. Operand has 1326 places, 1327 transitions, 5170 flow [2024-11-22 18:06:50,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 387 places, 320 transitions, 1901 flow [2024-11-22 18:06:50,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:50,651 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:50,652 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-22 18:06:50,652 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:50,652 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:50,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:50,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:50,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:50,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-22 18:06:50,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1640555819, now seen corresponding path program 1 times [2024-11-22 18:06:50,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:50,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407608898] [2024-11-22 18:06:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:50,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:50,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:50,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407608898] [2024-11-22 18:06:50,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407608898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:50,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:50,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:50,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812668439] [2024-11-22 18:06:50,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:50,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:50,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:50,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:50,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:50,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1076 out of 1327 [2024-11-22 18:06:50,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 320 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:50,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:50,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1076 of 1327 [2024-11-22 18:06:50,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:51,071 INFO L124 PetriNetUnfolderBase]: 71/1741 cut-off events. [2024-11-22 18:06:51,072 INFO L125 PetriNetUnfolderBase]: For 7736/7736 co-relation queries the response was YES. [2024-11-22 18:06:51,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2729 conditions, 1741 events. 71/1741 cut-off events. For 7736/7736 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4898 event pairs, 35 based on Foata normal form. 71/1667 useless extension candidates. Maximal degree in co-relation 2598. Up to 251 conditions per place. [2024-11-22 18:06:51,092 INFO L140 encePairwiseOnDemand]: 1321/1327 looper letters, 44 selfloop transitions, 2 changer transitions 1/316 dead transitions. [2024-11-22 18:06:51,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 316 transitions, 1985 flow [2024-11-22 18:06:51,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3278 transitions. [2024-11-22 18:06:51,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8234112032152725 [2024-11-22 18:06:51,093 INFO L175 Difference]: Start difference. First operand has 387 places, 320 transitions, 1901 flow. Second operand 3 states and 3278 transitions. [2024-11-22 18:06:51,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 316 transitions, 1985 flow [2024-11-22 18:06:51,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 316 transitions, 928 flow, removed 528 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:51,104 INFO L231 Difference]: Finished difference. Result has 387 places, 315 transitions, 838 flow [2024-11-22 18:06:51,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=387, PETRI_TRANSITIONS=315} [2024-11-22 18:06:51,105 INFO L277 CegarLoopForPetriNet]: 387 programPoint places, 0 predicate places. [2024-11-22 18:06:51,105 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 315 transitions, 838 flow [2024-11-22 18:06:51,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:51,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:51,105 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:51,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-11-22 18:06:51,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-22 18:06:51,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:51,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1389900089, now seen corresponding path program 1 times [2024-11-22 18:06:51,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:51,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645207410] [2024-11-22 18:06:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:51,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:51,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645207410] [2024-11-22 18:06:51,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645207410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267145865] [2024-11-22 18:06:51,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:51,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:51,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:51,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:51,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:51,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1006 out of 1327 [2024-11-22 18:06:51,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 315 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:51,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:51,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1006 of 1327 [2024-11-22 18:06:51,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:51,549 INFO L124 PetriNetUnfolderBase]: 36/1562 cut-off events. [2024-11-22 18:06:51,550 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-22 18:06:51,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 1562 events. 36/1562 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3710 event pairs, 0 based on Foata normal form. 35/1526 useless extension candidates. Maximal degree in co-relation 1898. Up to 180 conditions per place. [2024-11-22 18:06:51,566 INFO L140 encePairwiseOnDemand]: 1321/1327 looper letters, 42 selfloop transitions, 1 changer transitions 24/310 dead transitions. [2024-11-22 18:06:51,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 310 transitions, 918 flow [2024-11-22 18:06:51,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:51,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:51,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3068 transitions. [2024-11-22 18:06:51,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7706606380306456 [2024-11-22 18:06:51,567 INFO L175 Difference]: Start difference. First operand has 387 places, 315 transitions, 838 flow. Second operand 3 states and 3068 transitions. [2024-11-22 18:06:51,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 310 transitions, 918 flow [2024-11-22 18:06:51,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 310 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:51,570 INFO L231 Difference]: Finished difference. Result has 381 places, 286 transitions, 776 flow [2024-11-22 18:06:51,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=381, PETRI_TRANSITIONS=286} [2024-11-22 18:06:51,571 INFO L277 CegarLoopForPetriNet]: 387 programPoint places, -6 predicate places. [2024-11-22 18:06:51,571 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 286 transitions, 776 flow [2024-11-22 18:06:51,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:51,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:51,571 INFO L204 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:51,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-11-22 18:06:51,572 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-22 18:06:51,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:51,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1542542430, now seen corresponding path program 1 times [2024-11-22 18:06:51,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:51,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844216950] [2024-11-22 18:06:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:51,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 8126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8126 trivial. 0 not checked. [2024-11-22 18:06:51,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844216950] [2024-11-22 18:06:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844216950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:51,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:51,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:51,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538831577] [2024-11-22 18:06:51,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:51,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:51,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:51,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:51,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:51,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1112 out of 1327 [2024-11-22 18:06:51,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 286 transitions, 776 flow. Second operand has 4 states, 4 states have (on average 1122.0) internal successors, (4488), 4 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:51,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:51,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1112 of 1327 [2024-11-22 18:06:51,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:51,874 INFO L124 PetriNetUnfolderBase]: 0/721 cut-off events. [2024-11-22 18:06:51,874 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-11-22 18:06:51,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 721 events. 0/721 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 408 event pairs, 0 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2024-11-22 18:06:51,874 INFO L140 encePairwiseOnDemand]: 1323/1327 looper letters, 38 selfloop transitions, 3 changer transitions 0/285 dead transitions. [2024-11-22 18:06:51,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 285 transitions, 856 flow [2024-11-22 18:06:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:51,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4490 transitions. [2024-11-22 18:06:51,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8458929917106255 [2024-11-22 18:06:51,876 INFO L175 Difference]: Start difference. First operand has 381 places, 286 transitions, 776 flow. Second operand 4 states and 4490 transitions. [2024-11-22 18:06:51,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 285 transitions, 856 flow [2024-11-22 18:06:51,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 285 transitions, 855 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:51,879 INFO L231 Difference]: Finished difference. Result has 358 places, 285 transitions, 779 flow [2024-11-22 18:06:51,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=779, PETRI_PLACES=358, PETRI_TRANSITIONS=285} [2024-11-22 18:06:51,880 INFO L277 CegarLoopForPetriNet]: 387 programPoint places, -29 predicate places. [2024-11-22 18:06:51,880 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 285 transitions, 779 flow [2024-11-22 18:06:51,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1122.0) internal successors, (4488), 4 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:51,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:51,880 INFO L204 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:51,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-11-22 18:06:51,880 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-22 18:06:51,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash -339080594, now seen corresponding path program 1 times [2024-11-22 18:06:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:51,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165072787] [2024-11-22 18:06:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:51,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:51,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:52,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:52,040 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:52,040 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-11-22 18:06:52,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-11-22 18:06:52,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-11-22 18:06:52,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-11-22 18:06:52,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-11-22 18:06:52,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-11-22 18:06:52,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-11-22 18:06:52,042 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:52,043 WARN L244 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:52,043 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-11-22 18:06:52,149 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:52,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1363 places, 1364 transitions, 5388 flow [2024-11-22 18:06:52,534 INFO L124 PetriNetUnfolderBase]: 182/2332 cut-off events. [2024-11-22 18:06:52,534 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2024-11-22 18:06:52,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 2332 events. 182/2332 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6585 event pairs, 0 based on Foata normal form. 0/2038 useless extension candidates. Maximal degree in co-relation 3069. Up to 72 conditions per place. [2024-11-22 18:06:52,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 1363 places, 1364 transitions, 5388 flow [2024-11-22 18:06:52,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 396 places, 327 transitions, 1987 flow [2024-11-22 18:06:52,568 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:52,568 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:52,568 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-22 18:06:52,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:52,569 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:52,569 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:52,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:52,569 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:52,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 18:06:52,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:52,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1178103467, now seen corresponding path program 1 times [2024-11-22 18:06:52,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:52,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403619489] [2024-11-22 18:06:52,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:52,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:52,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:52,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403619489] [2024-11-22 18:06:52,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403619489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:52,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:52,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545380951] [2024-11-22 18:06:52,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:52,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:52,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:52,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:52,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:52,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1106 out of 1364 [2024-11-22 18:06:52,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 327 transitions, 1987 flow. Second operand has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:52,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:52,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1106 of 1364 [2024-11-22 18:06:52,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:53,032 INFO L124 PetriNetUnfolderBase]: 73/1790 cut-off events. [2024-11-22 18:06:53,032 INFO L125 PetriNetUnfolderBase]: For 8401/8401 co-relation queries the response was YES. [2024-11-22 18:06:53,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1790 events. 73/1790 cut-off events. For 8401/8401 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5079 event pairs, 36 based on Foata normal form. 73/1714 useless extension candidates. Maximal degree in co-relation 2691. Up to 258 conditions per place. [2024-11-22 18:06:53,054 INFO L140 encePairwiseOnDemand]: 1358/1364 looper letters, 45 selfloop transitions, 2 changer transitions 1/323 dead transitions. [2024-11-22 18:06:53,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 323 transitions, 2073 flow [2024-11-22 18:06:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3369 transitions. [2024-11-22 18:06:53,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8233137829912024 [2024-11-22 18:06:53,056 INFO L175 Difference]: Start difference. First operand has 396 places, 327 transitions, 1987 flow. Second operand 3 states and 3369 transitions. [2024-11-22 18:06:53,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 323 transitions, 2073 flow [2024-11-22 18:06:53,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 323 transitions, 950 flow, removed 561 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:53,068 INFO L231 Difference]: Finished difference. Result has 396 places, 322 transitions, 858 flow [2024-11-22 18:06:53,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=396, PETRI_TRANSITIONS=322} [2024-11-22 18:06:53,068 INFO L277 CegarLoopForPetriNet]: 396 programPoint places, 0 predicate places. [2024-11-22 18:06:53,068 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 322 transitions, 858 flow [2024-11-22 18:06:53,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:53,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:53,069 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:53,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-11-22 18:06:53,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 18:06:53,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:53,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1566645619, now seen corresponding path program 1 times [2024-11-22 18:06:53,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:53,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993029869] [2024-11-22 18:06:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:53,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:53,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:53,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993029869] [2024-11-22 18:06:53,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993029869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:53,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:53,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:53,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177018665] [2024-11-22 18:06:53,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:53,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:53,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:53,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:53,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:53,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 1364 [2024-11-22 18:06:53,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 322 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 1035.0) internal successors, (3105), 3 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:53,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:53,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 1364 [2024-11-22 18:06:53,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:53,457 INFO L124 PetriNetUnfolderBase]: 37/1606 cut-off events. [2024-11-22 18:06:53,457 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2024-11-22 18:06:53,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 1606 events. 37/1606 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3817 event pairs, 0 based on Foata normal form. 36/1569 useless extension candidates. Maximal degree in co-relation 1952. Up to 185 conditions per place. [2024-11-22 18:06:53,474 INFO L140 encePairwiseOnDemand]: 1358/1364 looper letters, 43 selfloop transitions, 1 changer transitions 24/317 dead transitions. [2024-11-22 18:06:53,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 317 transitions, 940 flow [2024-11-22 18:06:53,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:53,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3153 transitions. [2024-11-22 18:06:53,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7705278592375366 [2024-11-22 18:06:53,476 INFO L175 Difference]: Start difference. First operand has 396 places, 322 transitions, 858 flow. Second operand 3 states and 3153 transitions. [2024-11-22 18:06:53,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 317 transitions, 940 flow [2024-11-22 18:06:53,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 317 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:53,479 INFO L231 Difference]: Finished difference. Result has 390 places, 293 transitions, 796 flow [2024-11-22 18:06:53,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=796, PETRI_PLACES=390, PETRI_TRANSITIONS=293} [2024-11-22 18:06:53,480 INFO L277 CegarLoopForPetriNet]: 396 programPoint places, -6 predicate places. [2024-11-22 18:06:53,480 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 293 transitions, 796 flow [2024-11-22 18:06:53,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1035.0) internal successors, (3105), 3 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:53,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:53,480 INFO L204 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:53,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-11-22 18:06:53,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 18:06:53,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:53,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1101643290, now seen corresponding path program 1 times [2024-11-22 18:06:53,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:53,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597951761] [2024-11-22 18:06:53,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:53,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8610 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8610 trivial. 0 not checked. [2024-11-22 18:06:53,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:53,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597951761] [2024-11-22 18:06:53,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597951761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:53,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:53,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:53,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771431318] [2024-11-22 18:06:53,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:53,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:53,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:53,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:53,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:53,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1143 out of 1364 [2024-11-22 18:06:53,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 293 transitions, 796 flow. Second operand has 4 states, 4 states have (on average 1153.25) internal successors, (4613), 4 states have internal predecessors, (4613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:53,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:53,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1143 of 1364 [2024-11-22 18:06:53,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:53,990 INFO L124 PetriNetUnfolderBase]: 0/741 cut-off events. [2024-11-22 18:06:53,990 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2024-11-22 18:06:53,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 741 events. 0/741 cut-off events. For 698/698 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 419 event pairs, 0 based on Foata normal form. 0/741 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2024-11-22 18:06:53,991 INFO L140 encePairwiseOnDemand]: 1360/1364 looper letters, 39 selfloop transitions, 3 changer transitions 0/292 dead transitions. [2024-11-22 18:06:53,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 292 transitions, 878 flow [2024-11-22 18:06:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4615 transitions. [2024-11-22 18:06:53,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.845857771260997 [2024-11-22 18:06:53,995 INFO L175 Difference]: Start difference. First operand has 390 places, 293 transitions, 796 flow. Second operand 4 states and 4615 transitions. [2024-11-22 18:06:53,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 292 transitions, 878 flow [2024-11-22 18:06:53,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 292 transitions, 877 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:53,999 INFO L231 Difference]: Finished difference. Result has 367 places, 292 transitions, 799 flow [2024-11-22 18:06:53,999 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=799, PETRI_PLACES=367, PETRI_TRANSITIONS=292} [2024-11-22 18:06:53,999 INFO L277 CegarLoopForPetriNet]: 396 programPoint places, -29 predicate places. [2024-11-22 18:06:53,999 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 292 transitions, 799 flow [2024-11-22 18:06:54,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1153.25) internal successors, (4613), 4 states have internal predecessors, (4613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:54,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:54,000 INFO L204 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:54,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-11-22 18:06:54,000 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 18:06:54,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:54,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2039914186, now seen corresponding path program 1 times [2024-11-22 18:06:54,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:54,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651761670] [2024-11-22 18:06:54,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:54,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:54,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:54,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:54,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:54,216 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2024-11-22 18:06:54,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-22 18:06:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-22 18:06:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-22 18:06:54,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-22 18:06:54,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2024-11-22 18:06:54,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-11-22 18:06:54,220 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:54,220 WARN L244 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:54,220 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-11-22 18:06:54,341 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:54,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1400 places, 1401 transitions, 5610 flow [2024-11-22 18:06:54,907 INFO L124 PetriNetUnfolderBase]: 187/2396 cut-off events. [2024-11-22 18:06:54,907 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2024-11-22 18:06:54,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3245 conditions, 2396 events. 187/2396 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6737 event pairs, 0 based on Foata normal form. 0/2094 useless extension candidates. Maximal degree in co-relation 3172. Up to 74 conditions per place. [2024-11-22 18:06:54,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 1400 places, 1401 transitions, 5610 flow [2024-11-22 18:06:54,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 405 places, 334 transitions, 2075 flow [2024-11-22 18:06:54,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:54,943 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:54,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-22 18:06:54,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:54,944 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:54,944 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:54,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:54,944 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:54,944 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:06:54,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:54,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1863167861, now seen corresponding path program 1 times [2024-11-22 18:06:54,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:54,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601751634] [2024-11-22 18:06:54,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:54,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:54,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:54,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601751634] [2024-11-22 18:06:54,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601751634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:54,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:54,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:54,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584004719] [2024-11-22 18:06:54,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:54,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:54,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:55,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1136 out of 1401 [2024-11-22 18:06:55,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 334 transitions, 2075 flow. Second operand has 3 states, 3 states have (on average 1137.3333333333333) internal successors, (3412), 3 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:55,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:55,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1136 of 1401 [2024-11-22 18:06:55,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:55,425 INFO L124 PetriNetUnfolderBase]: 75/1839 cut-off events. [2024-11-22 18:06:55,425 INFO L125 PetriNetUnfolderBase]: For 9103/9103 co-relation queries the response was YES. [2024-11-22 18:06:55,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 1839 events. 75/1839 cut-off events. For 9103/9103 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5091 event pairs, 37 based on Foata normal form. 38/1724 useless extension candidates. Maximal degree in co-relation 2785. Up to 265 conditions per place. [2024-11-22 18:06:55,448 INFO L140 encePairwiseOnDemand]: 1395/1401 looper letters, 46 selfloop transitions, 2 changer transitions 1/330 dead transitions. [2024-11-22 18:06:55,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 330 transitions, 2163 flow [2024-11-22 18:06:55,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3460 transitions. [2024-11-22 18:06:55,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8232215084463479 [2024-11-22 18:06:55,450 INFO L175 Difference]: Start difference. First operand has 405 places, 334 transitions, 2075 flow. Second operand 3 states and 3460 transitions. [2024-11-22 18:06:55,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 330 transitions, 2163 flow [2024-11-22 18:06:55,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 330 transitions, 972 flow, removed 595 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:55,462 INFO L231 Difference]: Finished difference. Result has 405 places, 329 transitions, 878 flow [2024-11-22 18:06:55,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=405, PETRI_TRANSITIONS=329} [2024-11-22 18:06:55,462 INFO L277 CegarLoopForPetriNet]: 405 programPoint places, 0 predicate places. [2024-11-22 18:06:55,462 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 329 transitions, 878 flow [2024-11-22 18:06:55,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1137.3333333333333) internal successors, (3412), 3 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:55,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:55,463 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:55,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-11-22 18:06:55,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:06:55,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:55,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1744277754, now seen corresponding path program 1 times [2024-11-22 18:06:55,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913492940] [2024-11-22 18:06:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:55,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:55,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:55,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913492940] [2024-11-22 18:06:55,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913492940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:55,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:55,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:55,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3275841] [2024-11-22 18:06:55,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:55,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:55,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:55,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:55,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:55,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1062 out of 1401 [2024-11-22 18:06:55,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 329 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:55,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:55,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1062 of 1401 [2024-11-22 18:06:55,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:55,878 INFO L124 PetriNetUnfolderBase]: 38/1650 cut-off events. [2024-11-22 18:06:55,878 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-11-22 18:06:55,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 1650 events. 38/1650 cut-off events. For 737/737 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3780 event pairs, 0 based on Foata normal form. 37/1612 useless extension candidates. Maximal degree in co-relation 2006. Up to 190 conditions per place. [2024-11-22 18:06:55,896 INFO L140 encePairwiseOnDemand]: 1395/1401 looper letters, 44 selfloop transitions, 1 changer transitions 24/324 dead transitions. [2024-11-22 18:06:55,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 324 transitions, 962 flow [2024-11-22 18:06:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:55,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:55,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3238 transitions. [2024-11-22 18:06:55,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7704020937425649 [2024-11-22 18:06:55,898 INFO L175 Difference]: Start difference. First operand has 405 places, 329 transitions, 878 flow. Second operand 3 states and 3238 transitions. [2024-11-22 18:06:55,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 324 transitions, 962 flow [2024-11-22 18:06:55,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 324 transitions, 958 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:55,901 INFO L231 Difference]: Finished difference. Result has 399 places, 300 transitions, 816 flow [2024-11-22 18:06:55,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=399, PETRI_TRANSITIONS=300} [2024-11-22 18:06:55,901 INFO L277 CegarLoopForPetriNet]: 405 programPoint places, -6 predicate places. [2024-11-22 18:06:55,901 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 300 transitions, 816 flow [2024-11-22 18:06:55,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:55,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:55,902 INFO L204 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:55,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-11-22 18:06:55,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:06:55,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:55,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1484222293, now seen corresponding path program 1 times [2024-11-22 18:06:55,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:55,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451683085] [2024-11-22 18:06:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:55,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 9108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9108 trivial. 0 not checked. [2024-11-22 18:06:56,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451683085] [2024-11-22 18:06:56,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451683085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:56,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:56,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:56,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111506844] [2024-11-22 18:06:56,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:56,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:56,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:56,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:56,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 1401 [2024-11-22 18:06:56,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 300 transitions, 816 flow. Second operand has 4 states, 4 states have (on average 1184.5) internal successors, (4738), 4 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:56,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:56,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 1401 [2024-11-22 18:06:56,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:56,235 INFO L124 PetriNetUnfolderBase]: 0/761 cut-off events. [2024-11-22 18:06:56,235 INFO L125 PetriNetUnfolderBase]: For 736/736 co-relation queries the response was YES. [2024-11-22 18:06:56,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 761 events. 0/761 cut-off events. For 736/736 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 432 event pairs, 0 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2024-11-22 18:06:56,236 INFO L140 encePairwiseOnDemand]: 1397/1401 looper letters, 40 selfloop transitions, 3 changer transitions 0/299 dead transitions. [2024-11-22 18:06:56,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 299 transitions, 900 flow [2024-11-22 18:06:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4740 transitions. [2024-11-22 18:06:56,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8458244111349036 [2024-11-22 18:06:56,238 INFO L175 Difference]: Start difference. First operand has 399 places, 300 transitions, 816 flow. Second operand 4 states and 4740 transitions. [2024-11-22 18:06:56,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 299 transitions, 900 flow [2024-11-22 18:06:56,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 299 transitions, 899 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:56,241 INFO L231 Difference]: Finished difference. Result has 376 places, 299 transitions, 819 flow [2024-11-22 18:06:56,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=819, PETRI_PLACES=376, PETRI_TRANSITIONS=299} [2024-11-22 18:06:56,241 INFO L277 CegarLoopForPetriNet]: 405 programPoint places, -29 predicate places. [2024-11-22 18:06:56,241 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 299 transitions, 819 flow [2024-11-22 18:06:56,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1184.5) internal successors, (4738), 4 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:56,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:56,242 INFO L204 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:56,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-11-22 18:06:56,242 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:06:56,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:56,242 INFO L85 PathProgramCache]: Analyzing trace with hash -915896878, now seen corresponding path program 1 times [2024-11-22 18:06:56,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:56,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216925813] [2024-11-22 18:06:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:56,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:56,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:56,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:56,424 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:56,424 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-22 18:06:56,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-22 18:06:56,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-22 18:06:56,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-22 18:06:56,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-22 18:06:56,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-22 18:06:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-22 18:06:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-22 18:06:56,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-11-22 18:06:56,426 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:56,426 WARN L244 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:56,426 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-11-22 18:06:56,525 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:56,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1437 places, 1438 transitions, 5836 flow [2024-11-22 18:06:57,035 INFO L124 PetriNetUnfolderBase]: 192/2460 cut-off events. [2024-11-22 18:06:57,035 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2024-11-22 18:06:57,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3351 conditions, 2460 events. 192/2460 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6964 event pairs, 0 based on Foata normal form. 0/2150 useless extension candidates. Maximal degree in co-relation 3276. Up to 76 conditions per place. [2024-11-22 18:06:57,062 INFO L82 GeneralOperation]: Start removeDead. Operand has 1437 places, 1438 transitions, 5836 flow [2024-11-22 18:06:57,066 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 414 places, 341 transitions, 2165 flow [2024-11-22 18:06:57,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:57,066 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:57,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-22 18:06:57,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:57,067 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:57,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:57,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:57,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:57,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-22 18:06:57,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1106676427, now seen corresponding path program 1 times [2024-11-22 18:06:57,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:57,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112286159] [2024-11-22 18:06:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:57,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:57,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:57,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112286159] [2024-11-22 18:06:57,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112286159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:57,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:57,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:57,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326724784] [2024-11-22 18:06:57,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:57,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:57,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:57,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:57,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1166 out of 1438 [2024-11-22 18:06:57,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 341 transitions, 2165 flow. Second operand has 3 states, 3 states have (on average 1167.3333333333333) internal successors, (3502), 3 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:57,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:57,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1166 of 1438 [2024-11-22 18:06:57,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:57,549 INFO L124 PetriNetUnfolderBase]: 77/1888 cut-off events. [2024-11-22 18:06:57,549 INFO L125 PetriNetUnfolderBase]: For 9843/9843 co-relation queries the response was YES. [2024-11-22 18:06:57,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3017 conditions, 1888 events. 77/1888 cut-off events. For 9843/9843 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5239 event pairs, 38 based on Foata normal form. 39/1770 useless extension candidates. Maximal degree in co-relation 2880. Up to 272 conditions per place. [2024-11-22 18:06:57,574 INFO L140 encePairwiseOnDemand]: 1432/1438 looper letters, 47 selfloop transitions, 2 changer transitions 1/337 dead transitions. [2024-11-22 18:06:57,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 337 transitions, 2255 flow [2024-11-22 18:06:57,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:57,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:57,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3551 transitions. [2024-11-22 18:06:57,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8231339823829392 [2024-11-22 18:06:57,576 INFO L175 Difference]: Start difference. First operand has 414 places, 341 transitions, 2165 flow. Second operand 3 states and 3551 transitions. [2024-11-22 18:06:57,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 337 transitions, 2255 flow [2024-11-22 18:06:57,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 337 transitions, 994 flow, removed 630 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:57,589 INFO L231 Difference]: Finished difference. Result has 414 places, 336 transitions, 898 flow [2024-11-22 18:06:57,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=414, PETRI_TRANSITIONS=336} [2024-11-22 18:06:57,589 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, 0 predicate places. [2024-11-22 18:06:57,589 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 336 transitions, 898 flow [2024-11-22 18:06:57,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1167.3333333333333) internal successors, (3502), 3 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:57,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:57,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:57,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-11-22 18:06:57,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-22 18:06:57,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:57,590 INFO L85 PathProgramCache]: Analyzing trace with hash 857003684, now seen corresponding path program 1 times [2024-11-22 18:06:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:57,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976077145] [2024-11-22 18:06:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:57,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:57,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976077145] [2024-11-22 18:06:57,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976077145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:57,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:57,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510525258] [2024-11-22 18:06:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:57,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:57,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1438 [2024-11-22 18:06:57,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 336 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 1091.0) internal successors, (3273), 3 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:57,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:57,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1438 [2024-11-22 18:06:57,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:58,010 INFO L124 PetriNetUnfolderBase]: 39/1694 cut-off events. [2024-11-22 18:06:58,011 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2024-11-22 18:06:58,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 1694 events. 39/1694 cut-off events. For 776/776 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3930 event pairs, 0 based on Foata normal form. 38/1655 useless extension candidates. Maximal degree in co-relation 2060. Up to 195 conditions per place. [2024-11-22 18:06:58,030 INFO L140 encePairwiseOnDemand]: 1432/1438 looper letters, 45 selfloop transitions, 1 changer transitions 24/331 dead transitions. [2024-11-22 18:06:58,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 331 transitions, 984 flow [2024-11-22 18:06:58,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:58,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3323 transitions. [2024-11-22 18:06:58,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7702828001854427 [2024-11-22 18:06:58,031 INFO L175 Difference]: Start difference. First operand has 414 places, 336 transitions, 898 flow. Second operand 3 states and 3323 transitions. [2024-11-22 18:06:58,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 331 transitions, 984 flow [2024-11-22 18:06:58,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 331 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:06:58,034 INFO L231 Difference]: Finished difference. Result has 408 places, 307 transitions, 836 flow [2024-11-22 18:06:58,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=408, PETRI_TRANSITIONS=307} [2024-11-22 18:06:58,035 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, -6 predicate places. [2024-11-22 18:06:58,035 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 307 transitions, 836 flow [2024-11-22 18:06:58,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.0) internal successors, (3273), 3 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:58,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:58,035 INFO L204 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:58,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-11-22 18:06:58,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-22 18:06:58,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1550033845, now seen corresponding path program 1 times [2024-11-22 18:06:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:58,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919477307] [2024-11-22 18:06:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:58,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 9620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9620 trivial. 0 not checked. [2024-11-22 18:06:58,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:58,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919477307] [2024-11-22 18:06:58,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919477307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:58,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:58,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:06:58,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296639403] [2024-11-22 18:06:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:58,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:06:58,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:58,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:06:58,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:06:58,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 1438 [2024-11-22 18:06:58,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 307 transitions, 836 flow. Second operand has 4 states, 4 states have (on average 1215.75) internal successors, (4863), 4 states have internal predecessors, (4863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:58,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:58,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 1438 [2024-11-22 18:06:58,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:58,378 INFO L124 PetriNetUnfolderBase]: 0/781 cut-off events. [2024-11-22 18:06:58,378 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-11-22 18:06:58,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 781 events. 0/781 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 444 event pairs, 0 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2024-11-22 18:06:58,378 INFO L140 encePairwiseOnDemand]: 1434/1438 looper letters, 41 selfloop transitions, 3 changer transitions 0/306 dead transitions. [2024-11-22 18:06:58,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 306 transitions, 922 flow [2024-11-22 18:06:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:06:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:06:58,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4865 transitions. [2024-11-22 18:06:58,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8457927677329624 [2024-11-22 18:06:58,380 INFO L175 Difference]: Start difference. First operand has 408 places, 307 transitions, 836 flow. Second operand 4 states and 4865 transitions. [2024-11-22 18:06:58,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 306 transitions, 922 flow [2024-11-22 18:06:58,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 306 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:58,383 INFO L231 Difference]: Finished difference. Result has 385 places, 306 transitions, 839 flow [2024-11-22 18:06:58,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=839, PETRI_PLACES=385, PETRI_TRANSITIONS=306} [2024-11-22 18:06:58,384 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, -29 predicate places. [2024-11-22 18:06:58,384 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 306 transitions, 839 flow [2024-11-22 18:06:58,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1215.75) internal successors, (4863), 4 states have internal predecessors, (4863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:58,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:58,384 INFO L204 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:58,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-11-22 18:06:58,384 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-22 18:06:58,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:58,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1072215834, now seen corresponding path program 1 times [2024-11-22 18:06:58,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:58,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550809190] [2024-11-22 18:06:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:58,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:58,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:06:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:06:58,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:06:58,571 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2024-11-22 18:06:58,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2024-11-22 18:06:58,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2024-11-22 18:06:58,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2024-11-22 18:06:58,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-11-22 18:06:58,573 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:06:58,573 WARN L244 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:06:58,573 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-11-22 18:06:58,671 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:06:58,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1474 places, 1475 transitions, 6066 flow [2024-11-22 18:06:59,119 INFO L124 PetriNetUnfolderBase]: 197/2524 cut-off events. [2024-11-22 18:06:59,119 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2024-11-22 18:06:59,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3458 conditions, 2524 events. 197/2524 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6960 event pairs, 0 based on Foata normal form. 0/2206 useless extension candidates. Maximal degree in co-relation 3381. Up to 78 conditions per place. [2024-11-22 18:06:59,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 1474 places, 1475 transitions, 6066 flow [2024-11-22 18:06:59,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 348 transitions, 2257 flow [2024-11-22 18:06:59,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:06:59,159 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:06:59,159 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-22 18:06:59,160 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:06:59,160 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:06:59,160 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:06:59,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:59,160 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:59,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-22 18:06:59,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:59,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1497701739, now seen corresponding path program 1 times [2024-11-22 18:06:59,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:59,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066821667] [2024-11-22 18:06:59,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:59,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:59,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:59,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066821667] [2024-11-22 18:06:59,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066821667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:59,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:59,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:59,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312914950] [2024-11-22 18:06:59,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:59,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:59,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:59,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:59,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1196 out of 1475 [2024-11-22 18:06:59,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 348 transitions, 2257 flow. Second operand has 3 states, 3 states have (on average 1197.3333333333333) internal successors, (3592), 3 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:59,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:59,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1196 of 1475 [2024-11-22 18:06:59,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:06:59,749 INFO L124 PetriNetUnfolderBase]: 79/1937 cut-off events. [2024-11-22 18:06:59,749 INFO L125 PetriNetUnfolderBase]: For 10622/10622 co-relation queries the response was YES. [2024-11-22 18:06:59,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3115 conditions, 1937 events. 79/1937 cut-off events. For 10622/10622 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5442 event pairs, 39 based on Foata normal form. 79/1855 useless extension candidates. Maximal degree in co-relation 2976. Up to 279 conditions per place. [2024-11-22 18:06:59,769 INFO L140 encePairwiseOnDemand]: 1469/1475 looper letters, 48 selfloop transitions, 2 changer transitions 1/344 dead transitions. [2024-11-22 18:06:59,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 344 transitions, 2349 flow [2024-11-22 18:06:59,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:06:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:06:59,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3642 transitions. [2024-11-22 18:06:59,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230508474576271 [2024-11-22 18:06:59,770 INFO L175 Difference]: Start difference. First operand has 423 places, 348 transitions, 2257 flow. Second operand 3 states and 3642 transitions. [2024-11-22 18:06:59,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 344 transitions, 2349 flow [2024-11-22 18:06:59,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 344 transitions, 1016 flow, removed 666 selfloop flow, removed 1 redundant places. [2024-11-22 18:06:59,784 INFO L231 Difference]: Finished difference. Result has 423 places, 343 transitions, 918 flow [2024-11-22 18:06:59,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=423, PETRI_TRANSITIONS=343} [2024-11-22 18:06:59,784 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, 0 predicate places. [2024-11-22 18:06:59,784 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 343 transitions, 918 flow [2024-11-22 18:06:59,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1197.3333333333333) internal successors, (3592), 3 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:59,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:06:59,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:06:59,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-11-22 18:06:59,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-22 18:06:59,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:06:59,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1942231399, now seen corresponding path program 1 times [2024-11-22 18:06:59,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:06:59,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065602598] [2024-11-22 18:06:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:06:59,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:06:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:06:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:06:59,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:06:59,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065602598] [2024-11-22 18:06:59,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065602598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:06:59,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:06:59,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:06:59,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455364317] [2024-11-22 18:06:59,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:06:59,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:06:59,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:06:59,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:06:59,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:06:59,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1118 out of 1475 [2024-11-22 18:06:59,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 343 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:06:59,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:06:59,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1118 of 1475 [2024-11-22 18:06:59,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:00,235 INFO L124 PetriNetUnfolderBase]: 40/1738 cut-off events. [2024-11-22 18:07:00,235 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-22 18:07:00,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 1738 events. 40/1738 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4141 event pairs, 0 based on Foata normal form. 39/1698 useless extension candidates. Maximal degree in co-relation 2114. Up to 200 conditions per place. [2024-11-22 18:07:00,256 INFO L140 encePairwiseOnDemand]: 1469/1475 looper letters, 46 selfloop transitions, 1 changer transitions 24/338 dead transitions. [2024-11-22 18:07:00,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 338 transitions, 1006 flow [2024-11-22 18:07:00,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3408 transitions. [2024-11-22 18:07:00,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7701694915254237 [2024-11-22 18:07:00,257 INFO L175 Difference]: Start difference. First operand has 423 places, 343 transitions, 918 flow. Second operand 3 states and 3408 transitions. [2024-11-22 18:07:00,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 338 transitions, 1006 flow [2024-11-22 18:07:00,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 338 transitions, 1002 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:00,260 INFO L231 Difference]: Finished difference. Result has 417 places, 314 transitions, 856 flow [2024-11-22 18:07:00,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=417, PETRI_TRANSITIONS=314} [2024-11-22 18:07:00,261 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, -6 predicate places. [2024-11-22 18:07:00,261 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 314 transitions, 856 flow [2024-11-22 18:07:00,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:00,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:00,261 INFO L204 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:00,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-11-22 18:07:00,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-22 18:07:00,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:00,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1805293464, now seen corresponding path program 1 times [2024-11-22 18:07:00,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:00,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062461314] [2024-11-22 18:07:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:00,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 10146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10146 trivial. 0 not checked. [2024-11-22 18:07:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:00,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062461314] [2024-11-22 18:07:00,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062461314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:00,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:00,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:00,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654134404] [2024-11-22 18:07:00,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:00,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:00,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:00,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:00,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:00,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1236 out of 1475 [2024-11-22 18:07:00,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 314 transitions, 856 flow. Second operand has 4 states, 4 states have (on average 1247.0) internal successors, (4988), 4 states have internal predecessors, (4988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:00,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:00,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1236 of 1475 [2024-11-22 18:07:00,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:00,628 INFO L124 PetriNetUnfolderBase]: 0/801 cut-off events. [2024-11-22 18:07:00,629 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2024-11-22 18:07:00,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 801 events. 0/801 cut-off events. For 815/815 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 455 event pairs, 0 based on Foata normal form. 0/801 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2024-11-22 18:07:00,629 INFO L140 encePairwiseOnDemand]: 1471/1475 looper letters, 42 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2024-11-22 18:07:00,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 313 transitions, 944 flow [2024-11-22 18:07:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4990 transitions. [2024-11-22 18:07:00,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8457627118644068 [2024-11-22 18:07:00,631 INFO L175 Difference]: Start difference. First operand has 417 places, 314 transitions, 856 flow. Second operand 4 states and 4990 transitions. [2024-11-22 18:07:00,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 313 transitions, 944 flow [2024-11-22 18:07:00,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 313 transitions, 943 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:00,635 INFO L231 Difference]: Finished difference. Result has 394 places, 313 transitions, 859 flow [2024-11-22 18:07:00,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=859, PETRI_PLACES=394, PETRI_TRANSITIONS=313} [2024-11-22 18:07:00,635 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, -29 predicate places. [2024-11-22 18:07:00,635 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 313 transitions, 859 flow [2024-11-22 18:07:00,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1247.0) internal successors, (4988), 4 states have internal predecessors, (4988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:00,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:00,636 INFO L204 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:00,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-11-22 18:07:00,636 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-22 18:07:00,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1925919078, now seen corresponding path program 1 times [2024-11-22 18:07:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:00,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930935546] [2024-11-22 18:07:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:00,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:00,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:00,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:00,835 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:00,835 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-22 18:07:00,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-22 18:07:00,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-22 18:07:00,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-22 18:07:00,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-22 18:07:00,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-22 18:07:00,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-22 18:07:00,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-22 18:07:00,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-22 18:07:00,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-22 18:07:00,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-22 18:07:00,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-11-22 18:07:00,839 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:00,839 WARN L244 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:00,839 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-11-22 18:07:00,956 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:00,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1511 places, 1512 transitions, 6300 flow [2024-11-22 18:07:01,429 INFO L124 PetriNetUnfolderBase]: 202/2588 cut-off events. [2024-11-22 18:07:01,429 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2024-11-22 18:07:01,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3566 conditions, 2588 events. 202/2588 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7180 event pairs, 0 based on Foata normal form. 0/2262 useless extension candidates. Maximal degree in co-relation 3487. Up to 80 conditions per place. [2024-11-22 18:07:01,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 1511 places, 1512 transitions, 6300 flow [2024-11-22 18:07:01,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 355 transitions, 2351 flow [2024-11-22 18:07:01,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:01,471 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:01,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-22 18:07:01,472 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:01,472 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:01,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:01,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:01,472 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:01,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-22 18:07:01,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:01,472 INFO L85 PathProgramCache]: Analyzing trace with hash -690091925, now seen corresponding path program 1 times [2024-11-22 18:07:01,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:01,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729381940] [2024-11-22 18:07:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:01,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:01,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:01,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729381940] [2024-11-22 18:07:01,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729381940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:01,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:01,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:01,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824739032] [2024-11-22 18:07:01,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:01,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:01,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:01,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:01,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:01,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1226 out of 1512 [2024-11-22 18:07:01,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 355 transitions, 2351 flow. Second operand has 3 states, 3 states have (on average 1227.3333333333333) internal successors, (3682), 3 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:01,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:01,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1226 of 1512 [2024-11-22 18:07:01,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:02,012 INFO L124 PetriNetUnfolderBase]: 81/1986 cut-off events. [2024-11-22 18:07:02,013 INFO L125 PetriNetUnfolderBase]: For 11441/11441 co-relation queries the response was YES. [2024-11-22 18:07:02,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1986 events. 81/1986 cut-off events. For 11441/11441 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5513 event pairs, 40 based on Foata normal form. 41/1862 useless extension candidates. Maximal degree in co-relation 3073. Up to 286 conditions per place. [2024-11-22 18:07:02,041 INFO L140 encePairwiseOnDemand]: 1506/1512 looper letters, 49 selfloop transitions, 2 changer transitions 1/351 dead transitions. [2024-11-22 18:07:02,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 351 transitions, 2445 flow [2024-11-22 18:07:02,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:02,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3733 transitions. [2024-11-22 18:07:02,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8229717813051146 [2024-11-22 18:07:02,043 INFO L175 Difference]: Start difference. First operand has 432 places, 355 transitions, 2351 flow. Second operand 3 states and 3733 transitions. [2024-11-22 18:07:02,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 351 transitions, 2445 flow [2024-11-22 18:07:02,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 351 transitions, 1038 flow, removed 703 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:02,057 INFO L231 Difference]: Finished difference. Result has 432 places, 350 transitions, 938 flow [2024-11-22 18:07:02,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=938, PETRI_PLACES=432, PETRI_TRANSITIONS=350} [2024-11-22 18:07:02,057 INFO L277 CegarLoopForPetriNet]: 432 programPoint places, 0 predicate places. [2024-11-22 18:07:02,057 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 350 transitions, 938 flow [2024-11-22 18:07:02,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1227.3333333333333) internal successors, (3682), 3 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:02,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:02,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:02,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-11-22 18:07:02,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-22 18:07:02,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1511405391, now seen corresponding path program 1 times [2024-11-22 18:07:02,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:02,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929351991] [2024-11-22 18:07:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:02,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:02,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:02,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:02,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929351991] [2024-11-22 18:07:02,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929351991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:02,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:02,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:02,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346632646] [2024-11-22 18:07:02,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:02,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:02,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:02,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:02,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:02,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1146 out of 1512 [2024-11-22 18:07:02,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 350 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 1147.0) internal successors, (3441), 3 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:02,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:02,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1146 of 1512 [2024-11-22 18:07:02,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:02,623 INFO L124 PetriNetUnfolderBase]: 41/1782 cut-off events. [2024-11-22 18:07:02,623 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2024-11-22 18:07:02,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1782 events. 41/1782 cut-off events. For 857/857 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4146 event pairs, 0 based on Foata normal form. 40/1741 useless extension candidates. Maximal degree in co-relation 2168. Up to 205 conditions per place. [2024-11-22 18:07:02,636 INFO L140 encePairwiseOnDemand]: 1506/1512 looper letters, 47 selfloop transitions, 1 changer transitions 24/345 dead transitions. [2024-11-22 18:07:02,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 345 transitions, 1028 flow [2024-11-22 18:07:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:02,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3493 transitions. [2024-11-22 18:07:02,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7700617283950617 [2024-11-22 18:07:02,638 INFO L175 Difference]: Start difference. First operand has 432 places, 350 transitions, 938 flow. Second operand 3 states and 3493 transitions. [2024-11-22 18:07:02,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 345 transitions, 1028 flow [2024-11-22 18:07:02,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 345 transitions, 1024 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:02,641 INFO L231 Difference]: Finished difference. Result has 426 places, 321 transitions, 876 flow [2024-11-22 18:07:02,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=426, PETRI_TRANSITIONS=321} [2024-11-22 18:07:02,641 INFO L277 CegarLoopForPetriNet]: 432 programPoint places, -6 predicate places. [2024-11-22 18:07:02,641 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 321 transitions, 876 flow [2024-11-22 18:07:02,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1147.0) internal successors, (3441), 3 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:02,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:02,641 INFO L204 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:02,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-11-22 18:07:02,642 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-22 18:07:02,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:02,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2105027764, now seen corresponding path program 1 times [2024-11-22 18:07:02,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:02,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756703313] [2024-11-22 18:07:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:02,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:02,749 INFO L134 CoverageAnalysis]: Checked inductivity of 10686 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10686 trivial. 0 not checked. [2024-11-22 18:07:02,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:02,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756703313] [2024-11-22 18:07:02,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756703313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:02,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:02,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:02,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491018490] [2024-11-22 18:07:02,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:02,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:02,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:02,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1267 out of 1512 [2024-11-22 18:07:02,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 321 transitions, 876 flow. Second operand has 4 states, 4 states have (on average 1278.25) internal successors, (5113), 4 states have internal predecessors, (5113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:02,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:02,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1267 of 1512 [2024-11-22 18:07:02,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:03,000 INFO L124 PetriNetUnfolderBase]: 0/821 cut-off events. [2024-11-22 18:07:03,001 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-22 18:07:03,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 821 events. 0/821 cut-off events. For 856/856 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 468 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2024-11-22 18:07:03,002 INFO L140 encePairwiseOnDemand]: 1508/1512 looper letters, 43 selfloop transitions, 3 changer transitions 0/320 dead transitions. [2024-11-22 18:07:03,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 320 transitions, 966 flow [2024-11-22 18:07:03,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:03,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5115 transitions. [2024-11-22 18:07:03,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.845734126984127 [2024-11-22 18:07:03,004 INFO L175 Difference]: Start difference. First operand has 426 places, 321 transitions, 876 flow. Second operand 4 states and 5115 transitions. [2024-11-22 18:07:03,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 320 transitions, 966 flow [2024-11-22 18:07:03,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 320 transitions, 965 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:03,007 INFO L231 Difference]: Finished difference. Result has 403 places, 320 transitions, 879 flow [2024-11-22 18:07:03,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=879, PETRI_PLACES=403, PETRI_TRANSITIONS=320} [2024-11-22 18:07:03,008 INFO L277 CegarLoopForPetriNet]: 432 programPoint places, -29 predicate places. [2024-11-22 18:07:03,008 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 320 transitions, 879 flow [2024-11-22 18:07:03,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1278.25) internal successors, (5113), 4 states have internal predecessors, (5113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:03,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:03,008 INFO L204 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:03,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-11-22 18:07:03,008 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-22 18:07:03,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1497450674, now seen corresponding path program 1 times [2024-11-22 18:07:03,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:03,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101506479] [2024-11-22 18:07:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:03,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:03,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:03,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:03,220 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2024-11-22 18:07:03,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2024-11-22 18:07:03,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2024-11-22 18:07:03,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2024-11-22 18:07:03,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2024-11-22 18:07:03,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2024-11-22 18:07:03,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2024-11-22 18:07:03,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2024-11-22 18:07:03,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-11-22 18:07:03,222 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:03,222 WARN L244 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:03,222 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-11-22 18:07:03,334 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:03,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1548 places, 1549 transitions, 6538 flow [2024-11-22 18:07:03,848 INFO L124 PetriNetUnfolderBase]: 207/2652 cut-off events. [2024-11-22 18:07:03,848 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2024-11-22 18:07:03,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3675 conditions, 2652 events. 207/2652 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7474 event pairs, 0 based on Foata normal form. 0/2318 useless extension candidates. Maximal degree in co-relation 3594. Up to 82 conditions per place. [2024-11-22 18:07:03,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 1548 places, 1549 transitions, 6538 flow [2024-11-22 18:07:03,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 362 transitions, 2447 flow [2024-11-22 18:07:03,893 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:03,893 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:03,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-22 18:07:03,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:03,894 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:03,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:03,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:03,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:03,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-22 18:07:03,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1161737269, now seen corresponding path program 1 times [2024-11-22 18:07:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:03,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515864394] [2024-11-22 18:07:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:03,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:03,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:03,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515864394] [2024-11-22 18:07:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515864394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:03,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:03,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:03,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243769953] [2024-11-22 18:07:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:03,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:03,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:03,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:04,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1256 out of 1549 [2024-11-22 18:07:04,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 362 transitions, 2447 flow. Second operand has 3 states, 3 states have (on average 1257.3333333333333) internal successors, (3772), 3 states have internal predecessors, (3772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:04,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:04,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1256 of 1549 [2024-11-22 18:07:04,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:04,457 INFO L124 PetriNetUnfolderBase]: 83/2035 cut-off events. [2024-11-22 18:07:04,457 INFO L125 PetriNetUnfolderBase]: For 12301/12301 co-relation queries the response was YES. [2024-11-22 18:07:04,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3314 conditions, 2035 events. 83/2035 cut-off events. For 12301/12301 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5759 event pairs, 41 based on Foata normal form. 83/1949 useless extension candidates. Maximal degree in co-relation 3171. Up to 293 conditions per place. [2024-11-22 18:07:04,488 INFO L140 encePairwiseOnDemand]: 1543/1549 looper letters, 50 selfloop transitions, 2 changer transitions 1/358 dead transitions. [2024-11-22 18:07:04,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 358 transitions, 2543 flow [2024-11-22 18:07:04,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3824 transitions. [2024-11-22 18:07:04,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8228964923606628 [2024-11-22 18:07:04,490 INFO L175 Difference]: Start difference. First operand has 441 places, 362 transitions, 2447 flow. Second operand 3 states and 3824 transitions. [2024-11-22 18:07:04,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 358 transitions, 2543 flow [2024-11-22 18:07:04,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 358 transitions, 1060 flow, removed 741 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:04,506 INFO L231 Difference]: Finished difference. Result has 441 places, 357 transitions, 958 flow [2024-11-22 18:07:04,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=441, PETRI_TRANSITIONS=357} [2024-11-22 18:07:04,507 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, 0 predicate places. [2024-11-22 18:07:04,507 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 357 transitions, 958 flow [2024-11-22 18:07:04,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1257.3333333333333) internal successors, (3772), 3 states have internal predecessors, (3772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:04,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:04,507 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:04,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-11-22 18:07:04,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-22 18:07:04,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:04,507 INFO L85 PathProgramCache]: Analyzing trace with hash -435474340, now seen corresponding path program 1 times [2024-11-22 18:07:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274901747] [2024-11-22 18:07:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:04,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:04,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:04,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274901747] [2024-11-22 18:07:04,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274901747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:04,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:04,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:04,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733488313] [2024-11-22 18:07:04,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:04,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:04,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:04,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:04,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:04,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 1549 [2024-11-22 18:07:04,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 357 transitions, 958 flow. Second operand has 3 states, 3 states have (on average 1175.0) internal successors, (3525), 3 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:04,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:04,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 1549 [2024-11-22 18:07:04,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:04,999 INFO L124 PetriNetUnfolderBase]: 42/1826 cut-off events. [2024-11-22 18:07:05,000 INFO L125 PetriNetUnfolderBase]: For 899/899 co-relation queries the response was YES. [2024-11-22 18:07:05,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2283 conditions, 1826 events. 42/1826 cut-off events. For 899/899 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4359 event pairs, 0 based on Foata normal form. 41/1784 useless extension candidates. Maximal degree in co-relation 2222. Up to 210 conditions per place. [2024-11-22 18:07:05,022 INFO L140 encePairwiseOnDemand]: 1543/1549 looper letters, 48 selfloop transitions, 1 changer transitions 24/352 dead transitions. [2024-11-22 18:07:05,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 352 transitions, 1050 flow [2024-11-22 18:07:05,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3578 transitions. [2024-11-22 18:07:05,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7699591134064988 [2024-11-22 18:07:05,024 INFO L175 Difference]: Start difference. First operand has 441 places, 357 transitions, 958 flow. Second operand 3 states and 3578 transitions. [2024-11-22 18:07:05,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 352 transitions, 1050 flow [2024-11-22 18:07:05,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 352 transitions, 1046 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:05,028 INFO L231 Difference]: Finished difference. Result has 435 places, 328 transitions, 896 flow [2024-11-22 18:07:05,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=435, PETRI_TRANSITIONS=328} [2024-11-22 18:07:05,028 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -6 predicate places. [2024-11-22 18:07:05,028 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 328 transitions, 896 flow [2024-11-22 18:07:05,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1175.0) internal successors, (3525), 3 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:05,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:05,028 INFO L204 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:05,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-11-22 18:07:05,028 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-22 18:07:05,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:05,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2046182249, now seen corresponding path program 1 times [2024-11-22 18:07:05,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:05,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006676492] [2024-11-22 18:07:05,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:05,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 11240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11240 trivial. 0 not checked. [2024-11-22 18:07:05,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:05,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006676492] [2024-11-22 18:07:05,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006676492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:05,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:05,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:05,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561077386] [2024-11-22 18:07:05,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:05,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:05,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:05,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:05,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:05,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1298 out of 1549 [2024-11-22 18:07:05,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 328 transitions, 896 flow. Second operand has 4 states, 4 states have (on average 1309.5) internal successors, (5238), 4 states have internal predecessors, (5238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:05,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:05,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1298 of 1549 [2024-11-22 18:07:05,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:05,683 INFO L124 PetriNetUnfolderBase]: 0/841 cut-off events. [2024-11-22 18:07:05,683 INFO L125 PetriNetUnfolderBase]: For 898/898 co-relation queries the response was YES. [2024-11-22 18:07:05,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 841 events. 0/841 cut-off events. For 898/898 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 480 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2024-11-22 18:07:05,684 INFO L140 encePairwiseOnDemand]: 1545/1549 looper letters, 44 selfloop transitions, 3 changer transitions 0/327 dead transitions. [2024-11-22 18:07:05,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 327 transitions, 988 flow [2024-11-22 18:07:05,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5240 transitions. [2024-11-22 18:07:05,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8457069076823758 [2024-11-22 18:07:05,688 INFO L175 Difference]: Start difference. First operand has 435 places, 328 transitions, 896 flow. Second operand 4 states and 5240 transitions. [2024-11-22 18:07:05,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 327 transitions, 988 flow [2024-11-22 18:07:05,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 327 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:05,692 INFO L231 Difference]: Finished difference. Result has 412 places, 327 transitions, 899 flow [2024-11-22 18:07:05,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=899, PETRI_PLACES=412, PETRI_TRANSITIONS=327} [2024-11-22 18:07:05,692 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -29 predicate places. [2024-11-22 18:07:05,692 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 327 transitions, 899 flow [2024-11-22 18:07:05,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1309.5) internal successors, (5238), 4 states have internal predecessors, (5238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:05,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:05,693 INFO L204 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:05,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-11-22 18:07:05,693 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-22 18:07:05,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:05,694 INFO L85 PathProgramCache]: Analyzing trace with hash -527476694, now seen corresponding path program 1 times [2024-11-22 18:07:05,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:05,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513499953] [2024-11-22 18:07:05,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:05,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:05,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:05,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:05,980 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:05,980 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2024-11-22 18:07:05,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 48 remaining) [2024-11-22 18:07:05,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2024-11-22 18:07:05,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2024-11-22 18:07:05,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2024-11-22 18:07:05,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-11-22 18:07:05,984 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:05,984 WARN L244 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:05,984 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-11-22 18:07:06,129 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:06,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1585 places, 1586 transitions, 6780 flow [2024-11-22 18:07:06,699 INFO L124 PetriNetUnfolderBase]: 212/2716 cut-off events. [2024-11-22 18:07:06,699 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2024-11-22 18:07:06,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3785 conditions, 2716 events. 212/2716 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7689 event pairs, 0 based on Foata normal form. 0/2374 useless extension candidates. Maximal degree in co-relation 3702. Up to 84 conditions per place. [2024-11-22 18:07:06,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 1585 places, 1586 transitions, 6780 flow [2024-11-22 18:07:06,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 450 places, 369 transitions, 2545 flow [2024-11-22 18:07:06,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:06,745 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:06,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-22 18:07:06,746 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:06,746 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:06,746 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:06,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:06,746 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:06,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-22 18:07:06,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:06,746 INFO L85 PathProgramCache]: Analyzing trace with hash 82765707, now seen corresponding path program 1 times [2024-11-22 18:07:06,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:06,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423422633] [2024-11-22 18:07:06,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:06,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:06,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:06,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423422633] [2024-11-22 18:07:06,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423422633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:06,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:06,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038755468] [2024-11-22 18:07:06,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:06,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:06,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:06,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:06,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1286 out of 1586 [2024-11-22 18:07:06,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 369 transitions, 2545 flow. Second operand has 3 states, 3 states have (on average 1287.3333333333333) internal successors, (3862), 3 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:06,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:06,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1286 of 1586 [2024-11-22 18:07:06,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:07,331 INFO L124 PetriNetUnfolderBase]: 85/2084 cut-off events. [2024-11-22 18:07:07,331 INFO L125 PetriNetUnfolderBase]: For 13203/13203 co-relation queries the response was YES. [2024-11-22 18:07:07,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3415 conditions, 2084 events. 85/2084 cut-off events. For 13203/13203 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5974 event pairs, 42 based on Foata normal form. 85/1996 useless extension candidates. Maximal degree in co-relation 3271. Up to 300 conditions per place. [2024-11-22 18:07:07,362 INFO L140 encePairwiseOnDemand]: 1580/1586 looper letters, 51 selfloop transitions, 2 changer transitions 1/365 dead transitions. [2024-11-22 18:07:07,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 365 transitions, 2643 flow [2024-11-22 18:07:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3915 transitions. [2024-11-22 18:07:07,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8228247162673392 [2024-11-22 18:07:07,364 INFO L175 Difference]: Start difference. First operand has 450 places, 369 transitions, 2545 flow. Second operand 3 states and 3915 transitions. [2024-11-22 18:07:07,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 365 transitions, 2643 flow [2024-11-22 18:07:07,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 365 transitions, 1082 flow, removed 780 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:07,381 INFO L231 Difference]: Finished difference. Result has 450 places, 364 transitions, 978 flow [2024-11-22 18:07:07,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=978, PETRI_PLACES=450, PETRI_TRANSITIONS=364} [2024-11-22 18:07:07,381 INFO L277 CegarLoopForPetriNet]: 450 programPoint places, 0 predicate places. [2024-11-22 18:07:07,381 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 364 transitions, 978 flow [2024-11-22 18:07:07,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1287.3333333333333) internal successors, (3862), 3 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:07,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:07,382 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:07,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-11-22 18:07:07,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-22 18:07:07,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:07,382 INFO L85 PathProgramCache]: Analyzing trace with hash 396559502, now seen corresponding path program 1 times [2024-11-22 18:07:07,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:07,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617725671] [2024-11-22 18:07:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:07,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:07,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:07,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:07,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617725671] [2024-11-22 18:07:07,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617725671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:07,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:07,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:07,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866067558] [2024-11-22 18:07:07,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:07,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:07,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:07,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:07,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:07,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1202 out of 1586 [2024-11-22 18:07:07,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 364 transitions, 978 flow. Second operand has 3 states, 3 states have (on average 1203.0) internal successors, (3609), 3 states have internal predecessors, (3609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:07,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:07,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1202 of 1586 [2024-11-22 18:07:07,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:07,894 INFO L124 PetriNetUnfolderBase]: 43/1870 cut-off events. [2024-11-22 18:07:07,895 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-22 18:07:07,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 1870 events. 43/1870 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4423 event pairs, 0 based on Foata normal form. 42/1827 useless extension candidates. Maximal degree in co-relation 2276. Up to 215 conditions per place. [2024-11-22 18:07:07,919 INFO L140 encePairwiseOnDemand]: 1580/1586 looper letters, 49 selfloop transitions, 1 changer transitions 24/359 dead transitions. [2024-11-22 18:07:07,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 359 transitions, 1072 flow [2024-11-22 18:07:07,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3663 transitions. [2024-11-22 18:07:07,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7698612862547288 [2024-11-22 18:07:07,921 INFO L175 Difference]: Start difference. First operand has 450 places, 364 transitions, 978 flow. Second operand 3 states and 3663 transitions. [2024-11-22 18:07:07,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 359 transitions, 1072 flow [2024-11-22 18:07:07,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 359 transitions, 1068 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:07,925 INFO L231 Difference]: Finished difference. Result has 444 places, 335 transitions, 916 flow [2024-11-22 18:07:07,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=444, PETRI_TRANSITIONS=335} [2024-11-22 18:07:07,925 INFO L277 CegarLoopForPetriNet]: 450 programPoint places, -6 predicate places. [2024-11-22 18:07:07,925 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 335 transitions, 916 flow [2024-11-22 18:07:07,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1203.0) internal successors, (3609), 3 states have internal predecessors, (3609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:07,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:07,925 INFO L204 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:07,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-22 18:07:07,925 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-22 18:07:07,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1442962455, now seen corresponding path program 1 times [2024-11-22 18:07:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:07,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018900705] [2024-11-22 18:07:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:07,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 11808 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11808 trivial. 0 not checked. [2024-11-22 18:07:08,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:08,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018900705] [2024-11-22 18:07:08,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018900705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:08,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:08,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:08,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693057688] [2024-11-22 18:07:08,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:08,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:08,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:08,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:08,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:08,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1329 out of 1586 [2024-11-22 18:07:08,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 335 transitions, 916 flow. Second operand has 4 states, 4 states have (on average 1340.75) internal successors, (5363), 4 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:08,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:08,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1329 of 1586 [2024-11-22 18:07:08,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:08,309 INFO L124 PetriNetUnfolderBase]: 0/861 cut-off events. [2024-11-22 18:07:08,310 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-11-22 18:07:08,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 861 events. 0/861 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 491 event pairs, 0 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2024-11-22 18:07:08,310 INFO L140 encePairwiseOnDemand]: 1582/1586 looper letters, 45 selfloop transitions, 3 changer transitions 0/334 dead transitions. [2024-11-22 18:07:08,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 334 transitions, 1010 flow [2024-11-22 18:07:08,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5365 transitions. [2024-11-22 18:07:08,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8456809583858764 [2024-11-22 18:07:08,313 INFO L175 Difference]: Start difference. First operand has 444 places, 335 transitions, 916 flow. Second operand 4 states and 5365 transitions. [2024-11-22 18:07:08,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 334 transitions, 1010 flow [2024-11-22 18:07:08,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 334 transitions, 1009 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:08,316 INFO L231 Difference]: Finished difference. Result has 421 places, 334 transitions, 919 flow [2024-11-22 18:07:08,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=919, PETRI_PLACES=421, PETRI_TRANSITIONS=334} [2024-11-22 18:07:08,316 INFO L277 CegarLoopForPetriNet]: 450 programPoint places, -29 predicate places. [2024-11-22 18:07:08,316 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 334 transitions, 919 flow [2024-11-22 18:07:08,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1340.75) internal successors, (5363), 4 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:08,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:08,317 INFO L204 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:08,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-22 18:07:08,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-22 18:07:08,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:08,317 INFO L85 PathProgramCache]: Analyzing trace with hash -26744530, now seen corresponding path program 1 times [2024-11-22 18:07:08,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:08,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580447568] [2024-11-22 18:07:08,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:08,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:08,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:08,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:08,559 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:08,559 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-22 18:07:08,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-22 18:07:08,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-22 18:07:08,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-22 18:07:08,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-22 18:07:08,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-22 18:07:08,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-22 18:07:08,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-11-22 18:07:08,562 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:08,562 WARN L244 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:08,562 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-11-22 18:07:08,679 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:08,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1622 places, 1623 transitions, 7026 flow [2024-11-22 18:07:09,344 INFO L124 PetriNetUnfolderBase]: 217/2780 cut-off events. [2024-11-22 18:07:09,344 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2024-11-22 18:07:09,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3896 conditions, 2780 events. 217/2780 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7779 event pairs, 0 based on Foata normal form. 0/2430 useless extension candidates. Maximal degree in co-relation 3811. Up to 86 conditions per place. [2024-11-22 18:07:09,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 1622 places, 1623 transitions, 7026 flow [2024-11-22 18:07:09,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 376 transitions, 2645 flow [2024-11-22 18:07:09,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:09,389 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:09,389 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-22 18:07:09,390 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:09,390 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:09,390 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:09,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:09,390 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:09,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:07:09,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1251550293, now seen corresponding path program 1 times [2024-11-22 18:07:09,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:09,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577365304] [2024-11-22 18:07:09,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:09,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:09,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:09,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577365304] [2024-11-22 18:07:09,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577365304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:09,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:09,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:09,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053461911] [2024-11-22 18:07:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:09,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:09,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:09,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:09,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:09,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1316 out of 1623 [2024-11-22 18:07:09,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 376 transitions, 2645 flow. Second operand has 3 states, 3 states have (on average 1317.3333333333333) internal successors, (3952), 3 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:09,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:09,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1316 of 1623 [2024-11-22 18:07:09,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:10,004 INFO L124 PetriNetUnfolderBase]: 87/2133 cut-off events. [2024-11-22 18:07:10,004 INFO L125 PetriNetUnfolderBase]: For 14148/14148 co-relation queries the response was YES. [2024-11-22 18:07:10,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3517 conditions, 2133 events. 87/2133 cut-off events. For 14148/14148 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5964 event pairs, 43 based on Foata normal form. 44/2000 useless extension candidates. Maximal degree in co-relation 3372. Up to 307 conditions per place. [2024-11-22 18:07:10,037 INFO L140 encePairwiseOnDemand]: 1617/1623 looper letters, 52 selfloop transitions, 2 changer transitions 1/372 dead transitions. [2024-11-22 18:07:10,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 372 transitions, 2745 flow [2024-11-22 18:07:10,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4006 transitions. [2024-11-22 18:07:10,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.822756212774697 [2024-11-22 18:07:10,039 INFO L175 Difference]: Start difference. First operand has 459 places, 376 transitions, 2645 flow. Second operand 3 states and 4006 transitions. [2024-11-22 18:07:10,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 372 transitions, 2745 flow [2024-11-22 18:07:10,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 372 transitions, 1104 flow, removed 820 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:10,057 INFO L231 Difference]: Finished difference. Result has 459 places, 371 transitions, 998 flow [2024-11-22 18:07:10,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=998, PETRI_PLACES=459, PETRI_TRANSITIONS=371} [2024-11-22 18:07:10,058 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 0 predicate places. [2024-11-22 18:07:10,058 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 371 transitions, 998 flow [2024-11-22 18:07:10,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1317.3333333333333) internal successors, (3952), 3 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:10,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:10,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:10,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-11-22 18:07:10,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:07:10,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:10,058 INFO L85 PathProgramCache]: Analyzing trace with hash -287460379, now seen corresponding path program 1 times [2024-11-22 18:07:10,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:10,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884250319] [2024-11-22 18:07:10,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:10,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884250319] [2024-11-22 18:07:10,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884250319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:10,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:10,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116389630] [2024-11-22 18:07:10,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:10,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:10,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:10,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:10,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1230 out of 1623 [2024-11-22 18:07:10,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 371 transitions, 998 flow. Second operand has 3 states, 3 states have (on average 1231.0) internal successors, (3693), 3 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:10,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:10,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1230 of 1623 [2024-11-22 18:07:10,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:10,574 INFO L124 PetriNetUnfolderBase]: 44/1914 cut-off events. [2024-11-22 18:07:10,574 INFO L125 PetriNetUnfolderBase]: For 986/986 co-relation queries the response was YES. [2024-11-22 18:07:10,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 1914 events. 44/1914 cut-off events. For 986/986 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4487 event pairs, 0 based on Foata normal form. 43/1870 useless extension candidates. Maximal degree in co-relation 2330. Up to 220 conditions per place. [2024-11-22 18:07:10,599 INFO L140 encePairwiseOnDemand]: 1617/1623 looper letters, 50 selfloop transitions, 1 changer transitions 24/366 dead transitions. [2024-11-22 18:07:10,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 366 transitions, 1094 flow [2024-11-22 18:07:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:10,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3748 transitions. [2024-11-22 18:07:10,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7697679194906552 [2024-11-22 18:07:10,601 INFO L175 Difference]: Start difference. First operand has 459 places, 371 transitions, 998 flow. Second operand 3 states and 3748 transitions. [2024-11-22 18:07:10,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 366 transitions, 1094 flow [2024-11-22 18:07:10,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 366 transitions, 1090 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:10,604 INFO L231 Difference]: Finished difference. Result has 453 places, 342 transitions, 936 flow [2024-11-22 18:07:10,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=453, PETRI_TRANSITIONS=342} [2024-11-22 18:07:10,604 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -6 predicate places. [2024-11-22 18:07:10,604 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 342 transitions, 936 flow [2024-11-22 18:07:10,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1231.0) internal successors, (3693), 3 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:10,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:10,605 INFO L204 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:10,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-22 18:07:10,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:07:10,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:10,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1421928674, now seen corresponding path program 1 times [2024-11-22 18:07:10,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:10,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142189096] [2024-11-22 18:07:10,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:10,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 12390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12390 trivial. 0 not checked. [2024-11-22 18:07:10,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142189096] [2024-11-22 18:07:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142189096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:10,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:10,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430617722] [2024-11-22 18:07:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:10,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:10,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:10,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1360 out of 1623 [2024-11-22 18:07:10,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 342 transitions, 936 flow. Second operand has 4 states, 4 states have (on average 1372.0) internal successors, (5488), 4 states have internal predecessors, (5488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:10,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:10,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1360 of 1623 [2024-11-22 18:07:10,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:10,990 INFO L124 PetriNetUnfolderBase]: 0/881 cut-off events. [2024-11-22 18:07:10,990 INFO L125 PetriNetUnfolderBase]: For 985/985 co-relation queries the response was YES. [2024-11-22 18:07:10,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 881 events. 0/881 cut-off events. For 985/985 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 504 event pairs, 0 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2024-11-22 18:07:10,991 INFO L140 encePairwiseOnDemand]: 1619/1623 looper letters, 46 selfloop transitions, 3 changer transitions 0/341 dead transitions. [2024-11-22 18:07:10,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 341 transitions, 1032 flow [2024-11-22 18:07:10,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:10,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:10,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5490 transitions. [2024-11-22 18:07:10,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8456561922365989 [2024-11-22 18:07:10,993 INFO L175 Difference]: Start difference. First operand has 453 places, 342 transitions, 936 flow. Second operand 4 states and 5490 transitions. [2024-11-22 18:07:10,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 341 transitions, 1032 flow [2024-11-22 18:07:10,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 341 transitions, 1031 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:10,997 INFO L231 Difference]: Finished difference. Result has 430 places, 341 transitions, 939 flow [2024-11-22 18:07:10,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=430, PETRI_TRANSITIONS=341} [2024-11-22 18:07:10,997 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -29 predicate places. [2024-11-22 18:07:10,997 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 341 transitions, 939 flow [2024-11-22 18:07:10,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1372.0) internal successors, (5488), 4 states have internal predecessors, (5488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:10,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:10,998 INFO L204 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:10,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-22 18:07:10,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:07:10,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:10,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1692288286, now seen corresponding path program 1 times [2024-11-22 18:07:10,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:10,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425578504] [2024-11-22 18:07:10,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:10,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:11,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:11,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:11,250 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2024-11-22 18:07:11,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2024-11-22 18:07:11,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2024-11-22 18:07:11,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2024-11-22 18:07:11,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-22 18:07:11,252 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:11,252 WARN L244 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:11,252 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-11-22 18:07:11,362 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:11,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1659 places, 1660 transitions, 7276 flow [2024-11-22 18:07:12,124 INFO L124 PetriNetUnfolderBase]: 222/2844 cut-off events. [2024-11-22 18:07:12,124 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2024-11-22 18:07:12,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4008 conditions, 2844 events. 222/2844 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8209 event pairs, 0 based on Foata normal form. 0/2486 useless extension candidates. Maximal degree in co-relation 3921. Up to 88 conditions per place. [2024-11-22 18:07:12,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 1659 places, 1660 transitions, 7276 flow [2024-11-22 18:07:12,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 468 places, 383 transitions, 2747 flow [2024-11-22 18:07:12,149 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:12,149 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:12,149 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-22 18:07:12,150 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:12,150 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:12,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:12,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:12,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:12,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-22 18:07:12,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:12,151 INFO L85 PathProgramCache]: Analyzing trace with hash -869717973, now seen corresponding path program 1 times [2024-11-22 18:07:12,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:12,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519651179] [2024-11-22 18:07:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:12,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:12,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:12,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519651179] [2024-11-22 18:07:12,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519651179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:12,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:12,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:12,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835850349] [2024-11-22 18:07:12,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:12,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:12,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:12,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:12,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:12,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1346 out of 1660 [2024-11-22 18:07:12,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 383 transitions, 2747 flow. Second operand has 3 states, 3 states have (on average 1347.3333333333333) internal successors, (4042), 3 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:12,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:12,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1346 of 1660 [2024-11-22 18:07:12,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:12,789 INFO L124 PetriNetUnfolderBase]: 89/2182 cut-off events. [2024-11-22 18:07:12,789 INFO L125 PetriNetUnfolderBase]: For 15137/15137 co-relation queries the response was YES. [2024-11-22 18:07:12,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3620 conditions, 2182 events. 89/2182 cut-off events. For 15137/15137 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6027 event pairs, 44 based on Foata normal form. 89/2090 useless extension candidates. Maximal degree in co-relation 3474. Up to 314 conditions per place. [2024-11-22 18:07:12,823 INFO L140 encePairwiseOnDemand]: 1654/1660 looper letters, 53 selfloop transitions, 2 changer transitions 1/379 dead transitions. [2024-11-22 18:07:12,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 379 transitions, 2849 flow [2024-11-22 18:07:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4097 transitions. [2024-11-22 18:07:12,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8226907630522088 [2024-11-22 18:07:12,825 INFO L175 Difference]: Start difference. First operand has 468 places, 383 transitions, 2747 flow. Second operand 3 states and 4097 transitions. [2024-11-22 18:07:12,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 379 transitions, 2849 flow [2024-11-22 18:07:12,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 379 transitions, 1126 flow, removed 861 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:12,845 INFO L231 Difference]: Finished difference. Result has 468 places, 378 transitions, 1018 flow [2024-11-22 18:07:12,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=1016, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1018, PETRI_PLACES=468, PETRI_TRANSITIONS=378} [2024-11-22 18:07:12,846 INFO L277 CegarLoopForPetriNet]: 468 programPoint places, 0 predicate places. [2024-11-22 18:07:12,846 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 378 transitions, 1018 flow [2024-11-22 18:07:12,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1347.3333333333333) internal successors, (4042), 3 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:12,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:12,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:12,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-22 18:07:12,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-22 18:07:12,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:12,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1807433313, now seen corresponding path program 1 times [2024-11-22 18:07:12,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:12,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229536732] [2024-11-22 18:07:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:12,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:12,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:12,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229536732] [2024-11-22 18:07:12,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229536732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:12,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:12,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:12,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174942260] [2024-11-22 18:07:12,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:12,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:12,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:12,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:12,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:12,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1258 out of 1660 [2024-11-22 18:07:12,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 378 transitions, 1018 flow. Second operand has 3 states, 3 states have (on average 1259.0) internal successors, (3777), 3 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:12,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:12,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1258 of 1660 [2024-11-22 18:07:12,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:13,386 INFO L124 PetriNetUnfolderBase]: 45/1958 cut-off events. [2024-11-22 18:07:13,386 INFO L125 PetriNetUnfolderBase]: For 1031/1031 co-relation queries the response was YES. [2024-11-22 18:07:13,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 1958 events. 45/1958 cut-off events. For 1031/1031 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4466 event pairs, 0 based on Foata normal form. 44/1913 useless extension candidates. Maximal degree in co-relation 2384. Up to 225 conditions per place. [2024-11-22 18:07:13,412 INFO L140 encePairwiseOnDemand]: 1654/1660 looper letters, 51 selfloop transitions, 1 changer transitions 24/373 dead transitions. [2024-11-22 18:07:13,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 373 transitions, 1116 flow [2024-11-22 18:07:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3833 transitions. [2024-11-22 18:07:13,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7696787148594377 [2024-11-22 18:07:13,414 INFO L175 Difference]: Start difference. First operand has 468 places, 378 transitions, 1018 flow. Second operand 3 states and 3833 transitions. [2024-11-22 18:07:13,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 373 transitions, 1116 flow [2024-11-22 18:07:13,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 373 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:13,418 INFO L231 Difference]: Finished difference. Result has 462 places, 349 transitions, 956 flow [2024-11-22 18:07:13,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=956, PETRI_PLACES=462, PETRI_TRANSITIONS=349} [2024-11-22 18:07:13,419 INFO L277 CegarLoopForPetriNet]: 468 programPoint places, -6 predicate places. [2024-11-22 18:07:13,419 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 349 transitions, 956 flow [2024-11-22 18:07:13,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1259.0) internal successors, (3777), 3 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:13,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:13,419 INFO L204 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:13,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-11-22 18:07:13,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-22 18:07:13,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1169345314, now seen corresponding path program 1 times [2024-11-22 18:07:13,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:13,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289301455] [2024-11-22 18:07:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:13,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 12986 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12986 trivial. 0 not checked. [2024-11-22 18:07:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:13,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289301455] [2024-11-22 18:07:13,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289301455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:13,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:13,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:13,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764922972] [2024-11-22 18:07:13,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:13,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:13,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:13,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:13,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:13,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1391 out of 1660 [2024-11-22 18:07:13,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 349 transitions, 956 flow. Second operand has 4 states, 4 states have (on average 1403.25) internal successors, (5613), 4 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:13,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:13,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1391 of 1660 [2024-11-22 18:07:13,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:13,826 INFO L124 PetriNetUnfolderBase]: 0/901 cut-off events. [2024-11-22 18:07:13,826 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2024-11-22 18:07:13,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 901 events. 0/901 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 516 event pairs, 0 based on Foata normal form. 0/901 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2024-11-22 18:07:13,827 INFO L140 encePairwiseOnDemand]: 1656/1660 looper letters, 47 selfloop transitions, 3 changer transitions 0/348 dead transitions. [2024-11-22 18:07:13,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 348 transitions, 1054 flow [2024-11-22 18:07:13,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5615 transitions. [2024-11-22 18:07:13,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8456325301204819 [2024-11-22 18:07:13,829 INFO L175 Difference]: Start difference. First operand has 462 places, 349 transitions, 956 flow. Second operand 4 states and 5615 transitions. [2024-11-22 18:07:13,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 348 transitions, 1054 flow [2024-11-22 18:07:13,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 348 transitions, 1053 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:13,833 INFO L231 Difference]: Finished difference. Result has 439 places, 348 transitions, 959 flow [2024-11-22 18:07:13,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=959, PETRI_PLACES=439, PETRI_TRANSITIONS=348} [2024-11-22 18:07:13,833 INFO L277 CegarLoopForPetriNet]: 468 programPoint places, -29 predicate places. [2024-11-22 18:07:13,833 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 348 transitions, 959 flow [2024-11-22 18:07:13,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1403.25) internal successors, (5613), 4 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:13,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:13,834 INFO L204 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:13,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-11-22 18:07:13,834 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-22 18:07:13,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:13,834 INFO L85 PathProgramCache]: Analyzing trace with hash -156600998, now seen corresponding path program 1 times [2024-11-22 18:07:13,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:13,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257526142] [2024-11-22 18:07:13,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:13,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:13,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:14,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:14,094 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-11-22 18:07:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-11-22 18:07:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-11-22 18:07:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-11-22 18:07:14,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2024-11-22 18:07:14,096 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:14,096 WARN L244 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:14,096 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2024-11-22 18:07:14,211 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:14,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1696 places, 1697 transitions, 7530 flow [2024-11-22 18:07:14,822 INFO L124 PetriNetUnfolderBase]: 227/2908 cut-off events. [2024-11-22 18:07:14,822 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2024-11-22 18:07:14,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 2908 events. 227/2908 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8324 event pairs, 0 based on Foata normal form. 0/2542 useless extension candidates. Maximal degree in co-relation 4032. Up to 90 conditions per place. [2024-11-22 18:07:14,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 1696 places, 1697 transitions, 7530 flow [2024-11-22 18:07:14,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 477 places, 390 transitions, 2851 flow [2024-11-22 18:07:14,876 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:14,876 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:14,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-22 18:07:14,877 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:14,877 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:14,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:14,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:14,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:14,877 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-22 18:07:14,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:14,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1228262667, now seen corresponding path program 1 times [2024-11-22 18:07:14,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:14,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385979819] [2024-11-22 18:07:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:14,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:15,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:15,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385979819] [2024-11-22 18:07:15,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385979819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:15,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:15,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:15,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609461214] [2024-11-22 18:07:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:15,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:15,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:15,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1376 out of 1697 [2024-11-22 18:07:15,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 390 transitions, 2851 flow. Second operand has 3 states, 3 states have (on average 1377.3333333333333) internal successors, (4132), 3 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:15,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:15,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1376 of 1697 [2024-11-22 18:07:15,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:15,652 INFO L124 PetriNetUnfolderBase]: 91/2231 cut-off events. [2024-11-22 18:07:15,652 INFO L125 PetriNetUnfolderBase]: For 16171/16171 co-relation queries the response was YES. [2024-11-22 18:07:15,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 2231 events. 91/2231 cut-off events. For 16171/16171 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6240 event pairs, 45 based on Foata normal form. 46/2092 useless extension candidates. Maximal degree in co-relation 3577. Up to 321 conditions per place. [2024-11-22 18:07:15,688 INFO L140 encePairwiseOnDemand]: 1691/1697 looper letters, 54 selfloop transitions, 2 changer transitions 1/386 dead transitions. [2024-11-22 18:07:15,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 386 transitions, 2955 flow [2024-11-22 18:07:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4188 transitions. [2024-11-22 18:07:15,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8226281673541543 [2024-11-22 18:07:15,690 INFO L175 Difference]: Start difference. First operand has 477 places, 390 transitions, 2851 flow. Second operand 3 states and 4188 transitions. [2024-11-22 18:07:15,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 386 transitions, 2955 flow [2024-11-22 18:07:15,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 386 transitions, 1148 flow, removed 903 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:15,710 INFO L231 Difference]: Finished difference. Result has 477 places, 385 transitions, 1038 flow [2024-11-22 18:07:15,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1697, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1038, PETRI_PLACES=477, PETRI_TRANSITIONS=385} [2024-11-22 18:07:15,710 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 0 predicate places. [2024-11-22 18:07:15,710 INFO L471 AbstractCegarLoop]: Abstraction has has 477 places, 385 transitions, 1038 flow [2024-11-22 18:07:15,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1377.3333333333333) internal successors, (4132), 3 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:15,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:15,711 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:15,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-11-22 18:07:15,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-22 18:07:15,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:15,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1908694014, now seen corresponding path program 1 times [2024-11-22 18:07:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904923956] [2024-11-22 18:07:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:15,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:15,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:15,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904923956] [2024-11-22 18:07:15,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904923956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:15,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:15,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:15,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73342371] [2024-11-22 18:07:15,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:15,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:15,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:15,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:15,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:15,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1286 out of 1697 [2024-11-22 18:07:15,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 385 transitions, 1038 flow. Second operand has 3 states, 3 states have (on average 1287.0) internal successors, (3861), 3 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:15,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:15,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1286 of 1697 [2024-11-22 18:07:15,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:16,268 INFO L124 PetriNetUnfolderBase]: 46/2002 cut-off events. [2024-11-22 18:07:16,269 INFO L125 PetriNetUnfolderBase]: For 1077/1077 co-relation queries the response was YES. [2024-11-22 18:07:16,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2503 conditions, 2002 events. 46/2002 cut-off events. For 1077/1077 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4692 event pairs, 0 based on Foata normal form. 45/1956 useless extension candidates. Maximal degree in co-relation 2438. Up to 230 conditions per place. [2024-11-22 18:07:16,296 INFO L140 encePairwiseOnDemand]: 1691/1697 looper letters, 52 selfloop transitions, 1 changer transitions 24/380 dead transitions. [2024-11-22 18:07:16,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 380 transitions, 1138 flow [2024-11-22 18:07:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:16,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:16,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3918 transitions. [2024-11-22 18:07:16,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769593400117855 [2024-11-22 18:07:16,298 INFO L175 Difference]: Start difference. First operand has 477 places, 385 transitions, 1038 flow. Second operand 3 states and 3918 transitions. [2024-11-22 18:07:16,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 380 transitions, 1138 flow [2024-11-22 18:07:16,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 380 transitions, 1134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:16,302 INFO L231 Difference]: Finished difference. Result has 471 places, 356 transitions, 976 flow [2024-11-22 18:07:16,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1697, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=976, PETRI_PLACES=471, PETRI_TRANSITIONS=356} [2024-11-22 18:07:16,302 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -6 predicate places. [2024-11-22 18:07:16,302 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 356 transitions, 976 flow [2024-11-22 18:07:16,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1287.0) internal successors, (3861), 3 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:16,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:16,303 INFO L204 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:16,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2024-11-22 18:07:16,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-22 18:07:16,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:16,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2005570999, now seen corresponding path program 1 times [2024-11-22 18:07:16,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:16,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055629637] [2024-11-22 18:07:16,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:16,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 13596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13596 trivial. 0 not checked. [2024-11-22 18:07:16,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:16,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055629637] [2024-11-22 18:07:16,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055629637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:16,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:16,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539384855] [2024-11-22 18:07:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:16,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:16,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:16,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:16,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:16,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1422 out of 1697 [2024-11-22 18:07:16,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 356 transitions, 976 flow. Second operand has 4 states, 4 states have (on average 1434.5) internal successors, (5738), 4 states have internal predecessors, (5738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:16,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:16,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1422 of 1697 [2024-11-22 18:07:16,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:16,699 INFO L124 PetriNetUnfolderBase]: 0/921 cut-off events. [2024-11-22 18:07:16,699 INFO L125 PetriNetUnfolderBase]: For 1076/1076 co-relation queries the response was YES. [2024-11-22 18:07:16,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 921 events. 0/921 cut-off events. For 1076/1076 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 527 event pairs, 0 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2024-11-22 18:07:16,700 INFO L140 encePairwiseOnDemand]: 1693/1697 looper letters, 48 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2024-11-22 18:07:16,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 355 transitions, 1076 flow [2024-11-22 18:07:16,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:16,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5740 transitions. [2024-11-22 18:07:16,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8456098998232174 [2024-11-22 18:07:16,702 INFO L175 Difference]: Start difference. First operand has 471 places, 356 transitions, 976 flow. Second operand 4 states and 5740 transitions. [2024-11-22 18:07:16,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 355 transitions, 1076 flow [2024-11-22 18:07:16,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 355 transitions, 1075 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:16,705 INFO L231 Difference]: Finished difference. Result has 448 places, 355 transitions, 979 flow [2024-11-22 18:07:16,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1697, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=979, PETRI_PLACES=448, PETRI_TRANSITIONS=355} [2024-11-22 18:07:16,706 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -29 predicate places. [2024-11-22 18:07:16,706 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 355 transitions, 979 flow [2024-11-22 18:07:16,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1434.5) internal successors, (5738), 4 states have internal predecessors, (5738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:16,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:16,706 INFO L204 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:16,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2024-11-22 18:07:16,706 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-22 18:07:16,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:16,706 INFO L85 PathProgramCache]: Analyzing trace with hash 468534082, now seen corresponding path program 1 times [2024-11-22 18:07:16,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:16,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211455141] [2024-11-22 18:07:16,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:16,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:16,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:16,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:16,983 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 52 remaining) [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 52 remaining) [2024-11-22 18:07:16,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2024-11-22 18:07:16,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2024-11-22 18:07:16,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2024-11-22 18:07:16,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2024-11-22 18:07:16,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2024-11-22 18:07:16,986 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:16,986 WARN L244 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:16,986 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2024-11-22 18:07:17,103 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:17,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1733 places, 1734 transitions, 7788 flow [2024-11-22 18:07:17,727 INFO L124 PetriNetUnfolderBase]: 232/2972 cut-off events. [2024-11-22 18:07:17,727 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2024-11-22 18:07:17,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4235 conditions, 2972 events. 232/2972 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 8238 event pairs, 0 based on Foata normal form. 0/2598 useless extension candidates. Maximal degree in co-relation 4144. Up to 92 conditions per place. [2024-11-22 18:07:17,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 1733 places, 1734 transitions, 7788 flow [2024-11-22 18:07:17,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 486 places, 397 transitions, 2957 flow [2024-11-22 18:07:17,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:17,781 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:17,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-11-22 18:07:17,782 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:17,782 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:17,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:17,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:17,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:17,783 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-22 18:07:17,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:17,783 INFO L85 PathProgramCache]: Analyzing trace with hash 747424331, now seen corresponding path program 1 times [2024-11-22 18:07:17,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:17,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993761893] [2024-11-22 18:07:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:17,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:17,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:17,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993761893] [2024-11-22 18:07:17,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993761893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:17,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:17,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:17,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136689725] [2024-11-22 18:07:17,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:17,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:17,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:17,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:17,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1406 out of 1734 [2024-11-22 18:07:17,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 397 transitions, 2957 flow. Second operand has 3 states, 3 states have (on average 1407.3333333333333) internal successors, (4222), 3 states have internal predecessors, (4222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:17,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:17,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1406 of 1734 [2024-11-22 18:07:17,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:18,649 INFO L124 PetriNetUnfolderBase]: 93/2280 cut-off events. [2024-11-22 18:07:18,649 INFO L125 PetriNetUnfolderBase]: For 17251/17251 co-relation queries the response was YES. [2024-11-22 18:07:18,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3829 conditions, 2280 events. 93/2280 cut-off events. For 17251/17251 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6515 event pairs, 46 based on Foata normal form. 93/2184 useless extension candidates. Maximal degree in co-relation 3681. Up to 328 conditions per place. [2024-11-22 18:07:18,678 INFO L140 encePairwiseOnDemand]: 1728/1734 looper letters, 55 selfloop transitions, 2 changer transitions 1/393 dead transitions. [2024-11-22 18:07:18,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 393 transitions, 3063 flow [2024-11-22 18:07:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4279 transitions. [2024-11-22 18:07:18,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8225682429834679 [2024-11-22 18:07:18,682 INFO L175 Difference]: Start difference. First operand has 486 places, 397 transitions, 2957 flow. Second operand 3 states and 4279 transitions. [2024-11-22 18:07:18,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 393 transitions, 3063 flow [2024-11-22 18:07:18,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 393 transitions, 1170 flow, removed 946 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:18,710 INFO L231 Difference]: Finished difference. Result has 486 places, 392 transitions, 1058 flow [2024-11-22 18:07:18,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1734, PETRI_DIFFERENCE_MINUEND_FLOW=1056, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1058, PETRI_PLACES=486, PETRI_TRANSITIONS=392} [2024-11-22 18:07:18,710 INFO L277 CegarLoopForPetriNet]: 486 programPoint places, 0 predicate places. [2024-11-22 18:07:18,710 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 392 transitions, 1058 flow [2024-11-22 18:07:18,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1407.3333333333333) internal successors, (4222), 3 states have internal predecessors, (4222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:18,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:18,711 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:18,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2024-11-22 18:07:18,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-22 18:07:18,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:18,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1449059528, now seen corresponding path program 1 times [2024-11-22 18:07:18,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:18,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000544463] [2024-11-22 18:07:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:18,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:18,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:18,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000544463] [2024-11-22 18:07:18,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000544463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:18,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:18,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:18,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697264995] [2024-11-22 18:07:18,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:18,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:18,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:18,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:18,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:18,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1314 out of 1734 [2024-11-22 18:07:18,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 392 transitions, 1058 flow. Second operand has 3 states, 3 states have (on average 1315.0) internal successors, (3945), 3 states have internal predecessors, (3945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:18,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:18,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1314 of 1734 [2024-11-22 18:07:18,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:19,419 INFO L124 PetriNetUnfolderBase]: 47/2046 cut-off events. [2024-11-22 18:07:19,420 INFO L125 PetriNetUnfolderBase]: For 1124/1124 co-relation queries the response was YES. [2024-11-22 18:07:19,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 2046 events. 47/2046 cut-off events. For 1124/1124 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4898 event pairs, 0 based on Foata normal form. 46/1999 useless extension candidates. Maximal degree in co-relation 2492. Up to 235 conditions per place. [2024-11-22 18:07:19,449 INFO L140 encePairwiseOnDemand]: 1728/1734 looper letters, 53 selfloop transitions, 1 changer transitions 24/387 dead transitions. [2024-11-22 18:07:19,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 387 transitions, 1160 flow [2024-11-22 18:07:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:19,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4003 transitions. [2024-11-22 18:07:19,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7695117262591311 [2024-11-22 18:07:19,451 INFO L175 Difference]: Start difference. First operand has 486 places, 392 transitions, 1058 flow. Second operand 3 states and 4003 transitions. [2024-11-22 18:07:19,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 387 transitions, 1160 flow [2024-11-22 18:07:19,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 387 transitions, 1156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:19,455 INFO L231 Difference]: Finished difference. Result has 480 places, 363 transitions, 996 flow [2024-11-22 18:07:19,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1734, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=996, PETRI_PLACES=480, PETRI_TRANSITIONS=363} [2024-11-22 18:07:19,455 INFO L277 CegarLoopForPetriNet]: 486 programPoint places, -6 predicate places. [2024-11-22 18:07:19,455 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 363 transitions, 996 flow [2024-11-22 18:07:19,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1315.0) internal successors, (3945), 3 states have internal predecessors, (3945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:19,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:19,455 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:19,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2024-11-22 18:07:19,456 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-22 18:07:19,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:19,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1113111049, now seen corresponding path program 1 times [2024-11-22 18:07:19,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:19,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505112005] [2024-11-22 18:07:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:19,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 14220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14220 trivial. 0 not checked. [2024-11-22 18:07:19,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:19,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505112005] [2024-11-22 18:07:19,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505112005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:19,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:19,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:19,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200113488] [2024-11-22 18:07:19,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:19,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:19,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:19,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:19,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1453 out of 1734 [2024-11-22 18:07:19,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 363 transitions, 996 flow. Second operand has 4 states, 4 states have (on average 1465.75) internal successors, (5863), 4 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:19,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:19,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1453 of 1734 [2024-11-22 18:07:19,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:19,866 INFO L124 PetriNetUnfolderBase]: 0/941 cut-off events. [2024-11-22 18:07:19,866 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-22 18:07:19,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 941 events. 0/941 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 540 event pairs, 0 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2024-11-22 18:07:19,867 INFO L140 encePairwiseOnDemand]: 1730/1734 looper letters, 49 selfloop transitions, 3 changer transitions 0/362 dead transitions. [2024-11-22 18:07:19,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 362 transitions, 1098 flow [2024-11-22 18:07:19,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:19,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5865 transitions. [2024-11-22 18:07:19,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8455882352941176 [2024-11-22 18:07:19,869 INFO L175 Difference]: Start difference. First operand has 480 places, 363 transitions, 996 flow. Second operand 4 states and 5865 transitions. [2024-11-22 18:07:19,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 362 transitions, 1098 flow [2024-11-22 18:07:19,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 362 transitions, 1097 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:19,873 INFO L231 Difference]: Finished difference. Result has 457 places, 362 transitions, 999 flow [2024-11-22 18:07:19,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1734, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=999, PETRI_PLACES=457, PETRI_TRANSITIONS=362} [2024-11-22 18:07:19,873 INFO L277 CegarLoopForPetriNet]: 486 programPoint places, -29 predicate places. [2024-11-22 18:07:19,873 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 362 transitions, 999 flow [2024-11-22 18:07:19,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1465.75) internal successors, (5863), 4 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:19,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:19,874 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:19,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2024-11-22 18:07:19,874 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-22 18:07:19,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1753991114, now seen corresponding path program 1 times [2024-11-22 18:07:19,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:19,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023513406] [2024-11-22 18:07:19,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:19,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:19,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:20,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:20,163 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2024-11-22 18:07:20,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2024-11-22 18:07:20,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2024-11-22 18:07:20,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2024-11-22 18:07:20,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2024-11-22 18:07:20,166 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:20,166 WARN L244 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:20,166 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2024-11-22 18:07:20,284 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:20,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1770 places, 1771 transitions, 8050 flow [2024-11-22 18:07:20,940 INFO L124 PetriNetUnfolderBase]: 237/3036 cut-off events. [2024-11-22 18:07:20,940 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2024-11-22 18:07:20,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4350 conditions, 3036 events. 237/3036 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8706 event pairs, 0 based on Foata normal form. 0/2654 useless extension candidates. Maximal degree in co-relation 4257. Up to 94 conditions per place. [2024-11-22 18:07:20,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 1770 places, 1771 transitions, 8050 flow [2024-11-22 18:07:20,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 495 places, 404 transitions, 3065 flow [2024-11-22 18:07:20,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:20,999 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:20,999 INFO L334 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2024-11-22 18:07:21,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:21,000 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:21,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:21,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:21,000 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:21,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-22 18:07:21,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1982734315, now seen corresponding path program 1 times [2024-11-22 18:07:21,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:21,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168380914] [2024-11-22 18:07:21,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:21,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:21,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:21,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168380914] [2024-11-22 18:07:21,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168380914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:21,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:21,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303861961] [2024-11-22 18:07:21,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:21,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:21,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:21,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:21,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:21,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1436 out of 1771 [2024-11-22 18:07:21,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 404 transitions, 3065 flow. Second operand has 3 states, 3 states have (on average 1437.3333333333333) internal successors, (4312), 3 states have internal predecessors, (4312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:21,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:21,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1436 of 1771 [2024-11-22 18:07:21,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:21,717 INFO L124 PetriNetUnfolderBase]: 95/2329 cut-off events. [2024-11-22 18:07:21,717 INFO L125 PetriNetUnfolderBase]: For 18378/18378 co-relation queries the response was YES. [2024-11-22 18:07:21,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3935 conditions, 2329 events. 95/2329 cut-off events. For 18378/18378 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6637 event pairs, 47 based on Foata normal form. 95/2231 useless extension candidates. Maximal degree in co-relation 3786. Up to 335 conditions per place. [2024-11-22 18:07:21,757 INFO L140 encePairwiseOnDemand]: 1765/1771 looper letters, 56 selfloop transitions, 2 changer transitions 1/400 dead transitions. [2024-11-22 18:07:21,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 400 transitions, 3173 flow [2024-11-22 18:07:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4370 transitions. [2024-11-22 18:07:21,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8225108225108225 [2024-11-22 18:07:21,759 INFO L175 Difference]: Start difference. First operand has 495 places, 404 transitions, 3065 flow. Second operand 3 states and 4370 transitions. [2024-11-22 18:07:21,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 400 transitions, 3173 flow [2024-11-22 18:07:21,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 400 transitions, 1192 flow, removed 990 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:21,784 INFO L231 Difference]: Finished difference. Result has 495 places, 399 transitions, 1078 flow [2024-11-22 18:07:21,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1771, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1078, PETRI_PLACES=495, PETRI_TRANSITIONS=399} [2024-11-22 18:07:21,785 INFO L277 CegarLoopForPetriNet]: 495 programPoint places, 0 predicate places. [2024-11-22 18:07:21,785 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 399 transitions, 1078 flow [2024-11-22 18:07:21,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1437.3333333333333) internal successors, (4312), 3 states have internal predecessors, (4312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:21,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:21,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:21,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2024-11-22 18:07:21,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-22 18:07:21,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1004207949, now seen corresponding path program 1 times [2024-11-22 18:07:21,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:21,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009856390] [2024-11-22 18:07:21,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:21,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:21,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:21,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009856390] [2024-11-22 18:07:21,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009856390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:21,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:21,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:21,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274929414] [2024-11-22 18:07:21,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:21,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:21,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:21,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:21,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:21,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1342 out of 1771 [2024-11-22 18:07:21,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 399 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 1343.0) internal successors, (4029), 3 states have internal predecessors, (4029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:21,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:21,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1342 of 1771 [2024-11-22 18:07:21,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:22,479 INFO L124 PetriNetUnfolderBase]: 48/2090 cut-off events. [2024-11-22 18:07:22,479 INFO L125 PetriNetUnfolderBase]: For 1172/1172 co-relation queries the response was YES. [2024-11-22 18:07:22,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2613 conditions, 2090 events. 48/2090 cut-off events. For 1172/1172 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5005 event pairs, 0 based on Foata normal form. 47/2042 useless extension candidates. Maximal degree in co-relation 2546. Up to 240 conditions per place. [2024-11-22 18:07:22,503 INFO L140 encePairwiseOnDemand]: 1765/1771 looper letters, 54 selfloop transitions, 1 changer transitions 24/394 dead transitions. [2024-11-22 18:07:22,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 394 transitions, 1182 flow [2024-11-22 18:07:22,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:22,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:22,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4088 transitions. [2024-11-22 18:07:22,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769433465085639 [2024-11-22 18:07:22,505 INFO L175 Difference]: Start difference. First operand has 495 places, 399 transitions, 1078 flow. Second operand 3 states and 4088 transitions. [2024-11-22 18:07:22,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 394 transitions, 1182 flow [2024-11-22 18:07:22,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 394 transitions, 1178 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:22,509 INFO L231 Difference]: Finished difference. Result has 489 places, 370 transitions, 1016 flow [2024-11-22 18:07:22,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1771, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1016, PETRI_PLACES=489, PETRI_TRANSITIONS=370} [2024-11-22 18:07:22,510 INFO L277 CegarLoopForPetriNet]: 495 programPoint places, -6 predicate places. [2024-11-22 18:07:22,510 INFO L471 AbstractCegarLoop]: Abstraction has has 489 places, 370 transitions, 1016 flow [2024-11-22 18:07:22,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1343.0) internal successors, (4029), 3 states have internal predecessors, (4029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:22,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:22,510 INFO L204 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:22,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2024-11-22 18:07:22,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-22 18:07:22,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:22,510 INFO L85 PathProgramCache]: Analyzing trace with hash 421510604, now seen corresponding path program 1 times [2024-11-22 18:07:22,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:22,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32187493] [2024-11-22 18:07:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:22,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:22,640 INFO L134 CoverageAnalysis]: Checked inductivity of 14858 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14858 trivial. 0 not checked. [2024-11-22 18:07:22,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:22,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32187493] [2024-11-22 18:07:22,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32187493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:22,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:22,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:22,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780759501] [2024-11-22 18:07:22,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:22,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:22,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:22,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:22,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:22,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1484 out of 1771 [2024-11-22 18:07:22,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 370 transitions, 1016 flow. Second operand has 4 states, 4 states have (on average 1497.0) internal successors, (5988), 4 states have internal predecessors, (5988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:22,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:22,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1484 of 1771 [2024-11-22 18:07:22,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:22,928 INFO L124 PetriNetUnfolderBase]: 0/961 cut-off events. [2024-11-22 18:07:22,928 INFO L125 PetriNetUnfolderBase]: For 1171/1171 co-relation queries the response was YES. [2024-11-22 18:07:22,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 961 events. 0/961 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 551 event pairs, 0 based on Foata normal form. 0/961 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2024-11-22 18:07:22,929 INFO L140 encePairwiseOnDemand]: 1767/1771 looper letters, 50 selfloop transitions, 3 changer transitions 0/369 dead transitions. [2024-11-22 18:07:22,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 369 transitions, 1120 flow [2024-11-22 18:07:22,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:22,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:22,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5990 transitions. [2024-11-22 18:07:22,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8455674760022586 [2024-11-22 18:07:22,931 INFO L175 Difference]: Start difference. First operand has 489 places, 370 transitions, 1016 flow. Second operand 4 states and 5990 transitions. [2024-11-22 18:07:22,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 369 transitions, 1120 flow [2024-11-22 18:07:22,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 369 transitions, 1119 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:22,935 INFO L231 Difference]: Finished difference. Result has 466 places, 369 transitions, 1019 flow [2024-11-22 18:07:22,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1771, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1019, PETRI_PLACES=466, PETRI_TRANSITIONS=369} [2024-11-22 18:07:22,935 INFO L277 CegarLoopForPetriNet]: 495 programPoint places, -29 predicate places. [2024-11-22 18:07:22,935 INFO L471 AbstractCegarLoop]: Abstraction has has 466 places, 369 transitions, 1019 flow [2024-11-22 18:07:22,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1497.0) internal successors, (5988), 4 states have internal predecessors, (5988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:22,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:22,936 INFO L204 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:22,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2024-11-22 18:07:22,936 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-22 18:07:22,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2088607126, now seen corresponding path program 1 times [2024-11-22 18:07:22,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:22,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210399734] [2024-11-22 18:07:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:23,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:23,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:23,238 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2024-11-22 18:07:23,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2024-11-22 18:07:23,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2024-11-22 18:07:23,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2024-11-22 18:07:23,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2024-11-22 18:07:23,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2024-11-22 18:07:23,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2024-11-22 18:07:23,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2024-11-22 18:07:23,241 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:23,241 WARN L244 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:23,241 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2024-11-22 18:07:23,362 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:23,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1807 places, 1808 transitions, 8316 flow [2024-11-22 18:07:24,039 INFO L124 PetriNetUnfolderBase]: 242/3100 cut-off events. [2024-11-22 18:07:24,039 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2024-11-22 18:07:24,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4466 conditions, 3100 events. 242/3100 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8909 event pairs, 0 based on Foata normal form. 0/2710 useless extension candidates. Maximal degree in co-relation 4371. Up to 96 conditions per place. [2024-11-22 18:07:24,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 1807 places, 1808 transitions, 8316 flow [2024-11-22 18:07:24,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 504 places, 411 transitions, 3175 flow [2024-11-22 18:07:24,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:24,099 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:24,099 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-22 18:07:24,100 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:24,100 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:24,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:24,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:24,100 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:24,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-22 18:07:24,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:24,101 INFO L85 PathProgramCache]: Analyzing trace with hash 639225323, now seen corresponding path program 1 times [2024-11-22 18:07:24,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:24,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039475871] [2024-11-22 18:07:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:24,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:24,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039475871] [2024-11-22 18:07:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039475871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:24,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:24,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:24,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923848892] [2024-11-22 18:07:24,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:24,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:24,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:24,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:24,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:24,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1466 out of 1808 [2024-11-22 18:07:24,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 411 transitions, 3175 flow. Second operand has 3 states, 3 states have (on average 1467.3333333333333) internal successors, (4402), 3 states have internal predecessors, (4402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:24,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:24,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1466 of 1808 [2024-11-22 18:07:24,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:24,862 INFO L124 PetriNetUnfolderBase]: 97/2378 cut-off events. [2024-11-22 18:07:24,862 INFO L125 PetriNetUnfolderBase]: For 19553/19553 co-relation queries the response was YES. [2024-11-22 18:07:24,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4042 conditions, 2378 events. 97/2378 cut-off events. For 19553/19553 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6646 event pairs, 48 based on Foata normal form. 49/2230 useless extension candidates. Maximal degree in co-relation 3892. Up to 342 conditions per place. [2024-11-22 18:07:24,904 INFO L140 encePairwiseOnDemand]: 1802/1808 looper letters, 57 selfloop transitions, 2 changer transitions 1/407 dead transitions. [2024-11-22 18:07:24,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 407 transitions, 3285 flow [2024-11-22 18:07:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4461 transitions. [2024-11-22 18:07:24,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8224557522123894 [2024-11-22 18:07:24,906 INFO L175 Difference]: Start difference. First operand has 504 places, 411 transitions, 3175 flow. Second operand 3 states and 4461 transitions. [2024-11-22 18:07:24,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 407 transitions, 3285 flow [2024-11-22 18:07:24,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 407 transitions, 1214 flow, removed 1035 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:24,932 INFO L231 Difference]: Finished difference. Result has 504 places, 406 transitions, 1098 flow [2024-11-22 18:07:24,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1808, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=504, PETRI_TRANSITIONS=406} [2024-11-22 18:07:24,932 INFO L277 CegarLoopForPetriNet]: 504 programPoint places, 0 predicate places. [2024-11-22 18:07:24,932 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 406 transitions, 1098 flow [2024-11-22 18:07:24,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1467.3333333333333) internal successors, (4402), 3 states have internal predecessors, (4402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:24,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:24,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:24,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2024-11-22 18:07:24,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-22 18:07:24,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:24,933 INFO L85 PathProgramCache]: Analyzing trace with hash -678561853, now seen corresponding path program 1 times [2024-11-22 18:07:24,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:24,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370687475] [2024-11-22 18:07:24,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:24,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:24,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:24,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370687475] [2024-11-22 18:07:24,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370687475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:24,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:24,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:24,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372658787] [2024-11-22 18:07:24,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:24,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:24,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:24,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:24,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:25,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1370 out of 1808 [2024-11-22 18:07:25,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 406 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 1371.0) internal successors, (4113), 3 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:25,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:25,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1370 of 1808 [2024-11-22 18:07:25,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:25,732 INFO L124 PetriNetUnfolderBase]: 49/2134 cut-off events. [2024-11-22 18:07:25,733 INFO L125 PetriNetUnfolderBase]: For 1221/1221 co-relation queries the response was YES. [2024-11-22 18:07:25,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 2134 events. 49/2134 cut-off events. For 1221/1221 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5001 event pairs, 0 based on Foata normal form. 48/2085 useless extension candidates. Maximal degree in co-relation 2600. Up to 245 conditions per place. [2024-11-22 18:07:25,745 INFO L140 encePairwiseOnDemand]: 1802/1808 looper letters, 55 selfloop transitions, 1 changer transitions 24/401 dead transitions. [2024-11-22 18:07:25,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 401 transitions, 1204 flow [2024-11-22 18:07:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4173 transitions. [2024-11-22 18:07:25,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769358407079646 [2024-11-22 18:07:25,747 INFO L175 Difference]: Start difference. First operand has 504 places, 406 transitions, 1098 flow. Second operand 3 states and 4173 transitions. [2024-11-22 18:07:25,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 401 transitions, 1204 flow [2024-11-22 18:07:25,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 401 transitions, 1200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:25,751 INFO L231 Difference]: Finished difference. Result has 498 places, 377 transitions, 1036 flow [2024-11-22 18:07:25,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1808, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1036, PETRI_PLACES=498, PETRI_TRANSITIONS=377} [2024-11-22 18:07:25,751 INFO L277 CegarLoopForPetriNet]: 504 programPoint places, -6 predicate places. [2024-11-22 18:07:25,752 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 377 transitions, 1036 flow [2024-11-22 18:07:25,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1371.0) internal successors, (4113), 3 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:25,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:25,752 INFO L204 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:25,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2024-11-22 18:07:25,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-22 18:07:25,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1974145384, now seen corresponding path program 1 times [2024-11-22 18:07:25,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:25,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594996540] [2024-11-22 18:07:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:25,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 15510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15510 trivial. 0 not checked. [2024-11-22 18:07:25,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:25,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594996540] [2024-11-22 18:07:25,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594996540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:25,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:25,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:25,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714117392] [2024-11-22 18:07:25,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:25,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:25,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:25,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:25,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:25,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1515 out of 1808 [2024-11-22 18:07:25,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 377 transitions, 1036 flow. Second operand has 4 states, 4 states have (on average 1528.25) internal successors, (6113), 4 states have internal predecessors, (6113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:25,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:25,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1515 of 1808 [2024-11-22 18:07:25,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:26,188 INFO L124 PetriNetUnfolderBase]: 0/981 cut-off events. [2024-11-22 18:07:26,188 INFO L125 PetriNetUnfolderBase]: For 1220/1220 co-relation queries the response was YES. [2024-11-22 18:07:26,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 981 events. 0/981 cut-off events. For 1220/1220 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 563 event pairs, 0 based on Foata normal form. 0/981 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2024-11-22 18:07:26,189 INFO L140 encePairwiseOnDemand]: 1804/1808 looper letters, 51 selfloop transitions, 3 changer transitions 0/376 dead transitions. [2024-11-22 18:07:26,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 376 transitions, 1142 flow [2024-11-22 18:07:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6115 transitions. [2024-11-22 18:07:26,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8455475663716814 [2024-11-22 18:07:26,191 INFO L175 Difference]: Start difference. First operand has 498 places, 377 transitions, 1036 flow. Second operand 4 states and 6115 transitions. [2024-11-22 18:07:26,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 376 transitions, 1142 flow [2024-11-22 18:07:26,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 376 transitions, 1141 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:26,195 INFO L231 Difference]: Finished difference. Result has 475 places, 376 transitions, 1039 flow [2024-11-22 18:07:26,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1808, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1039, PETRI_PLACES=475, PETRI_TRANSITIONS=376} [2024-11-22 18:07:26,196 INFO L277 CegarLoopForPetriNet]: 504 programPoint places, -29 predicate places. [2024-11-22 18:07:26,196 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 376 transitions, 1039 flow [2024-11-22 18:07:26,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1528.25) internal successors, (6113), 4 states have internal predecessors, (6113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:26,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:26,196 INFO L204 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:26,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2024-11-22 18:07:26,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-22 18:07:26,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:26,196 INFO L85 PathProgramCache]: Analyzing trace with hash -453215038, now seen corresponding path program 1 times [2024-11-22 18:07:26,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:26,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628570175] [2024-11-22 18:07:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:26,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:26,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:26,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:26,517 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 55 remaining) [2024-11-22 18:07:26,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-11-22 18:07:26,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-11-22 18:07:26,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-11-22 18:07:26,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2024-11-22 18:07:26,520 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:26,520 WARN L244 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:26,520 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2024-11-22 18:07:26,644 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:26,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1844 places, 1845 transitions, 8586 flow [2024-11-22 18:07:27,357 INFO L124 PetriNetUnfolderBase]: 247/3164 cut-off events. [2024-11-22 18:07:27,358 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2024-11-22 18:07:27,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4583 conditions, 3164 events. 247/3164 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8853 event pairs, 0 based on Foata normal form. 0/2766 useless extension candidates. Maximal degree in co-relation 4486. Up to 98 conditions per place. [2024-11-22 18:07:27,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 1844 places, 1845 transitions, 8586 flow [2024-11-22 18:07:27,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 513 places, 418 transitions, 3287 flow [2024-11-22 18:07:27,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:27,421 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:27,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-22 18:07:27,422 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:27,422 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:27,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:27,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:27,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:27,422 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-22 18:07:27,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1011864651, now seen corresponding path program 1 times [2024-11-22 18:07:27,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:27,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496498975] [2024-11-22 18:07:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:27,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:27,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496498975] [2024-11-22 18:07:27,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496498975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:27,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:27,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:27,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956630109] [2024-11-22 18:07:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:27,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:27,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:27,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1496 out of 1845 [2024-11-22 18:07:27,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 418 transitions, 3287 flow. Second operand has 3 states, 3 states have (on average 1497.3333333333333) internal successors, (4492), 3 states have internal predecessors, (4492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:27,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:27,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1496 of 1845 [2024-11-22 18:07:27,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:28,200 INFO L124 PetriNetUnfolderBase]: 99/2427 cut-off events. [2024-11-22 18:07:28,201 INFO L125 PetriNetUnfolderBase]: For 20777/20777 co-relation queries the response was YES. [2024-11-22 18:07:28,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4150 conditions, 2427 events. 99/2427 cut-off events. For 20777/20777 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6806 event pairs, 49 based on Foata normal form. 50/2276 useless extension candidates. Maximal degree in co-relation 3999. Up to 349 conditions per place. [2024-11-22 18:07:28,244 INFO L140 encePairwiseOnDemand]: 1839/1845 looper letters, 58 selfloop transitions, 2 changer transitions 1/414 dead transitions. [2024-11-22 18:07:28,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 414 transitions, 3399 flow [2024-11-22 18:07:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:28,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4552 transitions. [2024-11-22 18:07:28,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8224028906955736 [2024-11-22 18:07:28,247 INFO L175 Difference]: Start difference. First operand has 513 places, 418 transitions, 3287 flow. Second operand 3 states and 4552 transitions. [2024-11-22 18:07:28,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 414 transitions, 3399 flow [2024-11-22 18:07:28,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 414 transitions, 1236 flow, removed 1081 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:28,275 INFO L231 Difference]: Finished difference. Result has 513 places, 413 transitions, 1118 flow [2024-11-22 18:07:28,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=513, PETRI_TRANSITIONS=413} [2024-11-22 18:07:28,275 INFO L277 CegarLoopForPetriNet]: 513 programPoint places, 0 predicate places. [2024-11-22 18:07:28,275 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 413 transitions, 1118 flow [2024-11-22 18:07:28,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1497.3333333333333) internal successors, (4492), 3 states have internal predecessors, (4492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:28,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:28,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:28,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2024-11-22 18:07:28,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-22 18:07:28,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:28,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1868969480, now seen corresponding path program 1 times [2024-11-22 18:07:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:28,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702305325] [2024-11-22 18:07:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:28,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:28,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:28,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:28,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702305325] [2024-11-22 18:07:28,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702305325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:28,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:28,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:28,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168854378] [2024-11-22 18:07:28,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:28,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:28,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:28,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1398 out of 1845 [2024-11-22 18:07:28,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 413 transitions, 1118 flow. Second operand has 3 states, 3 states have (on average 1399.0) internal successors, (4197), 3 states have internal predecessors, (4197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:28,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:28,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1398 of 1845 [2024-11-22 18:07:28,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:28,944 INFO L124 PetriNetUnfolderBase]: 50/2178 cut-off events. [2024-11-22 18:07:28,944 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-11-22 18:07:28,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2723 conditions, 2178 events. 50/2178 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5122 event pairs, 0 based on Foata normal form. 49/2128 useless extension candidates. Maximal degree in co-relation 2654. Up to 250 conditions per place. [2024-11-22 18:07:28,978 INFO L140 encePairwiseOnDemand]: 1839/1845 looper letters, 56 selfloop transitions, 1 changer transitions 24/408 dead transitions. [2024-11-22 18:07:28,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 408 transitions, 1226 flow [2024-11-22 18:07:28,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4258 transitions. [2024-11-22 18:07:28,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7692863595302619 [2024-11-22 18:07:28,980 INFO L175 Difference]: Start difference. First operand has 513 places, 413 transitions, 1118 flow. Second operand 3 states and 4258 transitions. [2024-11-22 18:07:28,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 408 transitions, 1226 flow [2024-11-22 18:07:28,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 408 transitions, 1222 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:28,984 INFO L231 Difference]: Finished difference. Result has 507 places, 384 transitions, 1056 flow [2024-11-22 18:07:28,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1056, PETRI_PLACES=507, PETRI_TRANSITIONS=384} [2024-11-22 18:07:28,985 INFO L277 CegarLoopForPetriNet]: 513 programPoint places, -6 predicate places. [2024-11-22 18:07:28,985 INFO L471 AbstractCegarLoop]: Abstraction has has 507 places, 384 transitions, 1056 flow [2024-11-22 18:07:28,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1399.0) internal successors, (4197), 3 states have internal predecessors, (4197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:28,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:28,986 INFO L204 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:28,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2024-11-22 18:07:28,986 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-22 18:07:28,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:28,986 INFO L85 PathProgramCache]: Analyzing trace with hash -565813141, now seen corresponding path program 1 times [2024-11-22 18:07:28,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:28,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465311299] [2024-11-22 18:07:28,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:28,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 16176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16176 trivial. 0 not checked. [2024-11-22 18:07:29,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:29,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465311299] [2024-11-22 18:07:29,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465311299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:29,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:29,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:29,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909058411] [2024-11-22 18:07:29,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:29,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:29,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:29,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:29,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:29,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1546 out of 1845 [2024-11-22 18:07:29,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 384 transitions, 1056 flow. Second operand has 4 states, 4 states have (on average 1559.5) internal successors, (6238), 4 states have internal predecessors, (6238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:29,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:29,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1546 of 1845 [2024-11-22 18:07:29,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:29,563 INFO L124 PetriNetUnfolderBase]: 0/1001 cut-off events. [2024-11-22 18:07:29,563 INFO L125 PetriNetUnfolderBase]: For 1270/1270 co-relation queries the response was YES. [2024-11-22 18:07:29,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 1001 events. 0/1001 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 575 event pairs, 0 based on Foata normal form. 0/1001 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2024-11-22 18:07:29,564 INFO L140 encePairwiseOnDemand]: 1841/1845 looper letters, 52 selfloop transitions, 3 changer transitions 0/383 dead transitions. [2024-11-22 18:07:29,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 383 transitions, 1164 flow [2024-11-22 18:07:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:29,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:29,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6240 transitions. [2024-11-22 18:07:29,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8455284552845529 [2024-11-22 18:07:29,567 INFO L175 Difference]: Start difference. First operand has 507 places, 384 transitions, 1056 flow. Second operand 4 states and 6240 transitions. [2024-11-22 18:07:29,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 383 transitions, 1164 flow [2024-11-22 18:07:29,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 383 transitions, 1163 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:29,571 INFO L231 Difference]: Finished difference. Result has 484 places, 383 transitions, 1059 flow [2024-11-22 18:07:29,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1059, PETRI_PLACES=484, PETRI_TRANSITIONS=383} [2024-11-22 18:07:29,571 INFO L277 CegarLoopForPetriNet]: 513 programPoint places, -29 predicate places. [2024-11-22 18:07:29,571 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 383 transitions, 1059 flow [2024-11-22 18:07:29,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1559.5) internal successors, (6238), 4 states have internal predecessors, (6238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:29,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:29,572 INFO L204 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:29,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2024-11-22 18:07:29,572 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-22 18:07:29,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:29,572 INFO L85 PathProgramCache]: Analyzing trace with hash 140287770, now seen corresponding path program 1 times [2024-11-22 18:07:29,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:29,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48485556] [2024-11-22 18:07:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:29,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:29,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:29,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:29,905 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:29,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2024-11-22 18:07:29,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2024-11-22 18:07:29,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2024-11-22 18:07:29,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2024-11-22 18:07:29,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2024-11-22 18:07:29,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2024-11-22 18:07:29,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2024-11-22 18:07:29,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2024-11-22 18:07:29,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2024-11-22 18:07:29,908 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:29,908 WARN L244 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:29,908 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2024-11-22 18:07:30,043 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:30,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1881 places, 1882 transitions, 8860 flow [2024-11-22 18:07:30,786 INFO L124 PetriNetUnfolderBase]: 252/3228 cut-off events. [2024-11-22 18:07:30,787 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2024-11-22 18:07:30,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4701 conditions, 3228 events. 252/3228 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9312 event pairs, 0 based on Foata normal form. 0/2822 useless extension candidates. Maximal degree in co-relation 4602. Up to 100 conditions per place. [2024-11-22 18:07:30,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 1881 places, 1882 transitions, 8860 flow [2024-11-22 18:07:30,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 425 transitions, 3401 flow [2024-11-22 18:07:30,853 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:30,853 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:30,853 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-11-22 18:07:30,854 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:30,854 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:30,854 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:30,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:30,854 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:30,854 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-22 18:07:30,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:30,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1194314997, now seen corresponding path program 1 times [2024-11-22 18:07:30,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:30,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996173173] [2024-11-22 18:07:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:30,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:30,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:30,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996173173] [2024-11-22 18:07:30,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996173173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:30,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:30,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:30,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247412551] [2024-11-22 18:07:30,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:30,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:30,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:30,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:30,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:31,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1526 out of 1882 [2024-11-22 18:07:31,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 425 transitions, 3401 flow. Second operand has 3 states, 3 states have (on average 1527.3333333333333) internal successors, (4582), 3 states have internal predecessors, (4582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:31,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:31,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1526 of 1882 [2024-11-22 18:07:31,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:31,642 INFO L124 PetriNetUnfolderBase]: 101/2476 cut-off events. [2024-11-22 18:07:31,642 INFO L125 PetriNetUnfolderBase]: For 22051/22051 co-relation queries the response was YES. [2024-11-22 18:07:31,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4259 conditions, 2476 events. 101/2476 cut-off events. For 22051/22051 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7043 event pairs, 50 based on Foata normal form. 101/2372 useless extension candidates. Maximal degree in co-relation 4107. Up to 356 conditions per place. [2024-11-22 18:07:31,688 INFO L140 encePairwiseOnDemand]: 1876/1882 looper letters, 59 selfloop transitions, 2 changer transitions 1/421 dead transitions. [2024-11-22 18:07:31,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 421 transitions, 3515 flow [2024-11-22 18:07:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4643 transitions. [2024-11-22 18:07:31,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.822352107686858 [2024-11-22 18:07:31,690 INFO L175 Difference]: Start difference. First operand has 522 places, 425 transitions, 3401 flow. Second operand 3 states and 4643 transitions. [2024-11-22 18:07:31,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 421 transitions, 3515 flow [2024-11-22 18:07:31,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 421 transitions, 1258 flow, removed 1128 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:31,723 INFO L231 Difference]: Finished difference. Result has 522 places, 420 transitions, 1138 flow [2024-11-22 18:07:31,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1882, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1138, PETRI_PLACES=522, PETRI_TRANSITIONS=420} [2024-11-22 18:07:31,723 INFO L277 CegarLoopForPetriNet]: 522 programPoint places, 0 predicate places. [2024-11-22 18:07:31,723 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 420 transitions, 1138 flow [2024-11-22 18:07:31,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1527.3333333333333) internal successors, (4582), 3 states have internal predecessors, (4582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:31,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:31,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:31,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2024-11-22 18:07:31,724 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-22 18:07:31,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash -280463534, now seen corresponding path program 1 times [2024-11-22 18:07:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:31,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247968159] [2024-11-22 18:07:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:31,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:31,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:31,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247968159] [2024-11-22 18:07:31,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247968159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:31,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:31,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:31,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638607983] [2024-11-22 18:07:31,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:31,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:31,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:31,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:31,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1426 out of 1882 [2024-11-22 18:07:31,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 420 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 1427.0) internal successors, (4281), 3 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:31,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:31,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1426 of 1882 [2024-11-22 18:07:31,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:32,409 INFO L124 PetriNetUnfolderBase]: 51/2222 cut-off events. [2024-11-22 18:07:32,409 INFO L125 PetriNetUnfolderBase]: For 1322/1322 co-relation queries the response was YES. [2024-11-22 18:07:32,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 2222 events. 51/2222 cut-off events. For 1322/1322 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5329 event pairs, 0 based on Foata normal form. 50/2171 useless extension candidates. Maximal degree in co-relation 2708. Up to 255 conditions per place. [2024-11-22 18:07:32,445 INFO L140 encePairwiseOnDemand]: 1876/1882 looper letters, 57 selfloop transitions, 1 changer transitions 24/415 dead transitions. [2024-11-22 18:07:32,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 415 transitions, 1248 flow [2024-11-22 18:07:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:32,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4343 transitions. [2024-11-22 18:07:32,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769217144881332 [2024-11-22 18:07:32,447 INFO L175 Difference]: Start difference. First operand has 522 places, 420 transitions, 1138 flow. Second operand 3 states and 4343 transitions. [2024-11-22 18:07:32,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 415 transitions, 1248 flow [2024-11-22 18:07:32,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 415 transitions, 1244 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:32,451 INFO L231 Difference]: Finished difference. Result has 516 places, 391 transitions, 1076 flow [2024-11-22 18:07:32,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1882, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1076, PETRI_PLACES=516, PETRI_TRANSITIONS=391} [2024-11-22 18:07:32,452 INFO L277 CegarLoopForPetriNet]: 522 programPoint places, -6 predicate places. [2024-11-22 18:07:32,452 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 391 transitions, 1076 flow [2024-11-22 18:07:32,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1427.0) internal successors, (4281), 3 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:32,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:32,452 INFO L204 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:32,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2024-11-22 18:07:32,452 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-22 18:07:32,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:32,452 INFO L85 PathProgramCache]: Analyzing trace with hash -321148299, now seen corresponding path program 1 times [2024-11-22 18:07:32,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:32,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107855855] [2024-11-22 18:07:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:32,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 16856 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16856 trivial. 0 not checked. [2024-11-22 18:07:32,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:32,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107855855] [2024-11-22 18:07:32,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107855855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:32,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:32,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:32,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894094577] [2024-11-22 18:07:32,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:32,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:32,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:32,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:32,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:32,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1577 out of 1882 [2024-11-22 18:07:32,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 391 transitions, 1076 flow. Second operand has 4 states, 4 states have (on average 1590.75) internal successors, (6363), 4 states have internal predecessors, (6363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:32,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:32,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1577 of 1882 [2024-11-22 18:07:32,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:33,076 INFO L124 PetriNetUnfolderBase]: 0/1021 cut-off events. [2024-11-22 18:07:33,076 INFO L125 PetriNetUnfolderBase]: For 1321/1321 co-relation queries the response was YES. [2024-11-22 18:07:33,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 1021 events. 0/1021 cut-off events. For 1321/1321 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 587 event pairs, 0 based on Foata normal form. 0/1021 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2024-11-22 18:07:33,077 INFO L140 encePairwiseOnDemand]: 1878/1882 looper letters, 53 selfloop transitions, 3 changer transitions 0/390 dead transitions. [2024-11-22 18:07:33,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 390 transitions, 1186 flow [2024-11-22 18:07:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6365 transitions. [2024-11-22 18:07:33,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.845510095642933 [2024-11-22 18:07:33,080 INFO L175 Difference]: Start difference. First operand has 516 places, 391 transitions, 1076 flow. Second operand 4 states and 6365 transitions. [2024-11-22 18:07:33,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 390 transitions, 1186 flow [2024-11-22 18:07:33,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 390 transitions, 1185 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:33,084 INFO L231 Difference]: Finished difference. Result has 493 places, 390 transitions, 1079 flow [2024-11-22 18:07:33,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1882, PETRI_DIFFERENCE_MINUEND_FLOW=1073, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1079, PETRI_PLACES=493, PETRI_TRANSITIONS=390} [2024-11-22 18:07:33,084 INFO L277 CegarLoopForPetriNet]: 522 programPoint places, -29 predicate places. [2024-11-22 18:07:33,084 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 390 transitions, 1079 flow [2024-11-22 18:07:33,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1590.75) internal successors, (6363), 4 states have internal predecessors, (6363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:33,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:33,085 INFO L204 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:33,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2024-11-22 18:07:33,085 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-22 18:07:33,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:33,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1388744190, now seen corresponding path program 1 times [2024-11-22 18:07:33,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:33,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28220751] [2024-11-22 18:07:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:33,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:33,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:33,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:33,443 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 57 remaining) [2024-11-22 18:07:33,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 57 remaining) [2024-11-22 18:07:33,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 57 remaining) [2024-11-22 18:07:33,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 57 remaining) [2024-11-22 18:07:33,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2024-11-22 18:07:33,445 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:33,445 WARN L244 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:33,445 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2024-11-22 18:07:33,572 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:33,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1918 places, 1919 transitions, 9138 flow [2024-11-22 18:07:34,347 INFO L124 PetriNetUnfolderBase]: 257/3292 cut-off events. [2024-11-22 18:07:34,348 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2024-11-22 18:07:34,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4820 conditions, 3292 events. 257/3292 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9440 event pairs, 0 based on Foata normal form. 0/2878 useless extension candidates. Maximal degree in co-relation 4719. Up to 102 conditions per place. [2024-11-22 18:07:34,409 INFO L82 GeneralOperation]: Start removeDead. Operand has 1918 places, 1919 transitions, 9138 flow [2024-11-22 18:07:34,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 531 places, 432 transitions, 3517 flow [2024-11-22 18:07:34,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:34,417 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:34,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-22 18:07:34,417 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:34,418 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:34,418 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:34,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:34,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:34,418 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-22 18:07:34,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:34,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1684346325, now seen corresponding path program 1 times [2024-11-22 18:07:34,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:34,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914625446] [2024-11-22 18:07:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:34,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:34,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:34,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914625446] [2024-11-22 18:07:34,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914625446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:34,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:34,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:34,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636775216] [2024-11-22 18:07:34,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:34,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:34,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:34,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:34,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:34,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1556 out of 1919 [2024-11-22 18:07:34,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 432 transitions, 3517 flow. Second operand has 3 states, 3 states have (on average 1557.3333333333333) internal successors, (4672), 3 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:34,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:34,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1556 of 1919 [2024-11-22 18:07:34,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:35,250 INFO L124 PetriNetUnfolderBase]: 103/2525 cut-off events. [2024-11-22 18:07:35,250 INFO L125 PetriNetUnfolderBase]: For 23376/23376 co-relation queries the response was YES. [2024-11-22 18:07:35,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4369 conditions, 2525 events. 103/2525 cut-off events. For 23376/23376 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7245 event pairs, 51 based on Foata normal form. 103/2419 useless extension candidates. Maximal degree in co-relation 4216. Up to 363 conditions per place. [2024-11-22 18:07:35,298 INFO L140 encePairwiseOnDemand]: 1913/1919 looper letters, 60 selfloop transitions, 2 changer transitions 1/428 dead transitions. [2024-11-22 18:07:35,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 428 transitions, 3633 flow [2024-11-22 18:07:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4734 transitions. [2024-11-22 18:07:35,301 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.822303282959875 [2024-11-22 18:07:35,301 INFO L175 Difference]: Start difference. First operand has 531 places, 432 transitions, 3517 flow. Second operand 3 states and 4734 transitions. [2024-11-22 18:07:35,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 428 transitions, 3633 flow [2024-11-22 18:07:35,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 428 transitions, 1280 flow, removed 1176 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:35,330 INFO L231 Difference]: Finished difference. Result has 531 places, 427 transitions, 1158 flow [2024-11-22 18:07:35,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1919, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1158, PETRI_PLACES=531, PETRI_TRANSITIONS=427} [2024-11-22 18:07:35,330 INFO L277 CegarLoopForPetriNet]: 531 programPoint places, 0 predicate places. [2024-11-22 18:07:35,330 INFO L471 AbstractCegarLoop]: Abstraction has has 531 places, 427 transitions, 1158 flow [2024-11-22 18:07:35,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1557.3333333333333) internal successors, (4672), 3 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:35,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:35,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:35,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2024-11-22 18:07:35,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-22 18:07:35,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:35,331 INFO L85 PathProgramCache]: Analyzing trace with hash -208011311, now seen corresponding path program 1 times [2024-11-22 18:07:35,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:35,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141624496] [2024-11-22 18:07:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:35,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:35,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:35,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141624496] [2024-11-22 18:07:35,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141624496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:35,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:35,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:35,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052095797] [2024-11-22 18:07:35,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:35,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:35,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:35,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:35,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:35,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1454 out of 1919 [2024-11-22 18:07:35,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 427 transitions, 1158 flow. Second operand has 3 states, 3 states have (on average 1455.0) internal successors, (4365), 3 states have internal predecessors, (4365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:35,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:35,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1454 of 1919 [2024-11-22 18:07:35,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:36,042 INFO L124 PetriNetUnfolderBase]: 52/2266 cut-off events. [2024-11-22 18:07:36,042 INFO L125 PetriNetUnfolderBase]: For 1374/1374 co-relation queries the response was YES. [2024-11-22 18:07:36,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2833 conditions, 2266 events. 52/2266 cut-off events. For 1374/1374 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5438 event pairs, 0 based on Foata normal form. 51/2214 useless extension candidates. Maximal degree in co-relation 2762. Up to 260 conditions per place. [2024-11-22 18:07:36,080 INFO L140 encePairwiseOnDemand]: 1913/1919 looper letters, 58 selfloop transitions, 1 changer transitions 24/422 dead transitions. [2024-11-22 18:07:36,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 422 transitions, 1270 flow [2024-11-22 18:07:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4428 transitions. [2024-11-22 18:07:36,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7691505992704534 [2024-11-22 18:07:36,082 INFO L175 Difference]: Start difference. First operand has 531 places, 427 transitions, 1158 flow. Second operand 3 states and 4428 transitions. [2024-11-22 18:07:36,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 422 transitions, 1270 flow [2024-11-22 18:07:36,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 422 transitions, 1266 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:36,086 INFO L231 Difference]: Finished difference. Result has 525 places, 398 transitions, 1096 flow [2024-11-22 18:07:36,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1919, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1096, PETRI_PLACES=525, PETRI_TRANSITIONS=398} [2024-11-22 18:07:36,087 INFO L277 CegarLoopForPetriNet]: 531 programPoint places, -6 predicate places. [2024-11-22 18:07:36,087 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 398 transitions, 1096 flow [2024-11-22 18:07:36,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1455.0) internal successors, (4365), 3 states have internal predecessors, (4365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:36,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:36,087 INFO L204 CegarLoopForPetriNet]: trace histogram [51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:36,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2024-11-22 18:07:36,087 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-22 18:07:36,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:36,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1585303334, now seen corresponding path program 1 times [2024-11-22 18:07:36,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:36,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615876649] [2024-11-22 18:07:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 17550 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17550 trivial. 0 not checked. [2024-11-22 18:07:36,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615876649] [2024-11-22 18:07:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615876649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:36,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:36,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943644980] [2024-11-22 18:07:36,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:36,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:36,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:36,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:36,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1608 out of 1919 [2024-11-22 18:07:36,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 398 transitions, 1096 flow. Second operand has 4 states, 4 states have (on average 1622.0) internal successors, (6488), 4 states have internal predecessors, (6488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:36,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:36,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1608 of 1919 [2024-11-22 18:07:36,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:36,699 INFO L124 PetriNetUnfolderBase]: 0/1041 cut-off events. [2024-11-22 18:07:36,699 INFO L125 PetriNetUnfolderBase]: For 1373/1373 co-relation queries the response was YES. [2024-11-22 18:07:36,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 1041 events. 0/1041 cut-off events. For 1373/1373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 600 event pairs, 0 based on Foata normal form. 0/1041 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2024-11-22 18:07:36,700 INFO L140 encePairwiseOnDemand]: 1915/1919 looper letters, 54 selfloop transitions, 3 changer transitions 0/397 dead transitions. [2024-11-22 18:07:36,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 397 transitions, 1208 flow [2024-11-22 18:07:36,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:36,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6490 transitions. [2024-11-22 18:07:36,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8454924439812402 [2024-11-22 18:07:36,703 INFO L175 Difference]: Start difference. First operand has 525 places, 398 transitions, 1096 flow. Second operand 4 states and 6490 transitions. [2024-11-22 18:07:36,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 397 transitions, 1208 flow [2024-11-22 18:07:36,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 397 transitions, 1207 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:36,707 INFO L231 Difference]: Finished difference. Result has 502 places, 397 transitions, 1099 flow [2024-11-22 18:07:36,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1919, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1099, PETRI_PLACES=502, PETRI_TRANSITIONS=397} [2024-11-22 18:07:36,707 INFO L277 CegarLoopForPetriNet]: 531 programPoint places, -29 predicate places. [2024-11-22 18:07:36,707 INFO L471 AbstractCegarLoop]: Abstraction has has 502 places, 397 transitions, 1099 flow [2024-11-22 18:07:36,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1622.0) internal successors, (6488), 4 states have internal predecessors, (6488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:36,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:36,708 INFO L204 CegarLoopForPetriNet]: trace histogram [51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:36,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2024-11-22 18:07:36,708 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-22 18:07:36,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:36,708 INFO L85 PathProgramCache]: Analyzing trace with hash 484676302, now seen corresponding path program 1 times [2024-11-22 18:07:36,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:36,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000896591] [2024-11-22 18:07:36,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:36,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:36,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:37,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:37,083 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2024-11-22 18:07:37,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2024-11-22 18:07:37,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2024-11-22 18:07:37,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2024-11-22 18:07:37,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2024-11-22 18:07:37,085 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:37,085 WARN L244 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:37,085 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2024-11-22 18:07:37,215 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 18:07:37,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1955 places, 1956 transitions, 9420 flow [2024-11-22 18:07:38,036 INFO L124 PetriNetUnfolderBase]: 262/3356 cut-off events. [2024-11-22 18:07:38,036 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2024-11-22 18:07:38,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4940 conditions, 3356 events. 262/3356 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9630 event pairs, 0 based on Foata normal form. 0/2934 useless extension candidates. Maximal degree in co-relation 4837. Up to 104 conditions per place. [2024-11-22 18:07:38,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 1955 places, 1956 transitions, 9420 flow [2024-11-22 18:07:38,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 540 places, 439 transitions, 3635 flow [2024-11-22 18:07:38,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:07:38,109 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;@538df6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:07:38,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-11-22 18:07:38,110 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:07:38,110 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-22 18:07:38,110 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:07:38,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:38,110 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:38,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-22 18:07:38,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:38,110 INFO L85 PathProgramCache]: Analyzing trace with hash -458229333, now seen corresponding path program 1 times [2024-11-22 18:07:38,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:38,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006367771] [2024-11-22 18:07:38,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:38,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:38,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006367771] [2024-11-22 18:07:38,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006367771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:38,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:38,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336386508] [2024-11-22 18:07:38,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:38,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:38,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:38,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1586 out of 1956 [2024-11-22 18:07:38,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 439 transitions, 3635 flow. Second operand has 3 states, 3 states have (on average 1587.3333333333333) internal successors, (4762), 3 states have internal predecessors, (4762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:38,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:38,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1586 of 1956 [2024-11-22 18:07:38,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:38,988 INFO L124 PetriNetUnfolderBase]: 105/2574 cut-off events. [2024-11-22 18:07:38,989 INFO L125 PetriNetUnfolderBase]: For 24753/24753 co-relation queries the response was YES. [2024-11-22 18:07:39,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4480 conditions, 2574 events. 105/2574 cut-off events. For 24753/24753 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7281 event pairs, 52 based on Foata normal form. 105/2466 useless extension candidates. Maximal degree in co-relation 4326. Up to 370 conditions per place. [2024-11-22 18:07:39,039 INFO L140 encePairwiseOnDemand]: 1950/1956 looper letters, 61 selfloop transitions, 2 changer transitions 1/435 dead transitions. [2024-11-22 18:07:39,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 435 transitions, 3753 flow [2024-11-22 18:07:39,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:39,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4825 transitions. [2024-11-22 18:07:39,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8222563053851397 [2024-11-22 18:07:39,041 INFO L175 Difference]: Start difference. First operand has 540 places, 439 transitions, 3635 flow. Second operand 3 states and 4825 transitions. [2024-11-22 18:07:39,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 435 transitions, 3753 flow [2024-11-22 18:07:39,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 435 transitions, 1302 flow, removed 1225 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:39,072 INFO L231 Difference]: Finished difference. Result has 540 places, 434 transitions, 1178 flow [2024-11-22 18:07:39,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1956, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1178, PETRI_PLACES=540, PETRI_TRANSITIONS=434} [2024-11-22 18:07:39,073 INFO L277 CegarLoopForPetriNet]: 540 programPoint places, 0 predicate places. [2024-11-22 18:07:39,073 INFO L471 AbstractCegarLoop]: Abstraction has has 540 places, 434 transitions, 1178 flow [2024-11-22 18:07:39,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1587.3333333333333) internal successors, (4762), 3 states have internal predecessors, (4762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:39,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:39,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:39,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2024-11-22 18:07:39,073 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-22 18:07:39,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:39,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1651612811, now seen corresponding path program 1 times [2024-11-22 18:07:39,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:39,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704519250] [2024-11-22 18:07:39,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:39,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:39,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:07:39,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:39,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704519250] [2024-11-22 18:07:39,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704519250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:39,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:39,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:07:39,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160955254] [2024-11-22 18:07:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:39,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:07:39,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:39,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:07:39,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:07:39,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1482 out of 1956 [2024-11-22 18:07:39,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 434 transitions, 1178 flow. Second operand has 3 states, 3 states have (on average 1483.0) internal successors, (4449), 3 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:39,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:39,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1482 of 1956 [2024-11-22 18:07:39,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:39,812 INFO L124 PetriNetUnfolderBase]: 53/2310 cut-off events. [2024-11-22 18:07:39,812 INFO L125 PetriNetUnfolderBase]: For 1427/1427 co-relation queries the response was YES. [2024-11-22 18:07:39,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2888 conditions, 2310 events. 53/2310 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5545 event pairs, 0 based on Foata normal form. 52/2257 useless extension candidates. Maximal degree in co-relation 2816. Up to 265 conditions per place. [2024-11-22 18:07:39,851 INFO L140 encePairwiseOnDemand]: 1950/1956 looper letters, 59 selfloop transitions, 1 changer transitions 24/429 dead transitions. [2024-11-22 18:07:39,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 429 transitions, 1292 flow [2024-11-22 18:07:39,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:07:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:07:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4513 transitions. [2024-11-22 18:07:39,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7690865712338105 [2024-11-22 18:07:39,854 INFO L175 Difference]: Start difference. First operand has 540 places, 434 transitions, 1178 flow. Second operand 3 states and 4513 transitions. [2024-11-22 18:07:39,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 429 transitions, 1292 flow [2024-11-22 18:07:39,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 429 transitions, 1288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:07:39,858 INFO L231 Difference]: Finished difference. Result has 534 places, 405 transitions, 1116 flow [2024-11-22 18:07:39,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1956, PETRI_DIFFERENCE_MINUEND_FLOW=1164, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=534, PETRI_TRANSITIONS=405} [2024-11-22 18:07:39,859 INFO L277 CegarLoopForPetriNet]: 540 programPoint places, -6 predicate places. [2024-11-22 18:07:39,859 INFO L471 AbstractCegarLoop]: Abstraction has has 534 places, 405 transitions, 1116 flow [2024-11-22 18:07:39,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1483.0) internal successors, (4449), 3 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:39,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:39,859 INFO L204 CegarLoopForPetriNet]: trace histogram [52, 52, 52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:39,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2024-11-22 18:07:39,859 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-22 18:07:39,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1025805854, now seen corresponding path program 1 times [2024-11-22 18:07:39,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:39,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737771954] [2024-11-22 18:07:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:39,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:07:40,184 INFO L134 CoverageAnalysis]: Checked inductivity of 18258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18258 trivial. 0 not checked. [2024-11-22 18:07:40,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:07:40,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737771954] [2024-11-22 18:07:40,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737771954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:07:40,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:07:40,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:07:40,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928282095] [2024-11-22 18:07:40,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:07:40,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:07:40,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:07:40,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:07:40,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:07:40,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1639 out of 1956 [2024-11-22 18:07:40,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 405 transitions, 1116 flow. Second operand has 4 states, 4 states have (on average 1653.25) internal successors, (6613), 4 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:40,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:07:40,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1639 of 1956 [2024-11-22 18:07:40,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:07:40,573 INFO L124 PetriNetUnfolderBase]: 0/1061 cut-off events. [2024-11-22 18:07:40,573 INFO L125 PetriNetUnfolderBase]: For 1426/1426 co-relation queries the response was YES. [2024-11-22 18:07:40,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 1061 events. 0/1061 cut-off events. For 1426/1426 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 611 event pairs, 0 based on Foata normal form. 0/1061 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2024-11-22 18:07:40,574 INFO L140 encePairwiseOnDemand]: 1952/1956 looper letters, 55 selfloop transitions, 3 changer transitions 0/404 dead transitions. [2024-11-22 18:07:40,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 404 transitions, 1230 flow [2024-11-22 18:07:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:07:40,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:07:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6615 transitions. [2024-11-22 18:07:40,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8454754601226994 [2024-11-22 18:07:40,577 INFO L175 Difference]: Start difference. First operand has 534 places, 405 transitions, 1116 flow. Second operand 4 states and 6615 transitions. [2024-11-22 18:07:40,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 404 transitions, 1230 flow [2024-11-22 18:07:40,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 404 transitions, 1229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:07:40,581 INFO L231 Difference]: Finished difference. Result has 511 places, 404 transitions, 1119 flow [2024-11-22 18:07:40,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1956, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1119, PETRI_PLACES=511, PETRI_TRANSITIONS=404} [2024-11-22 18:07:40,582 INFO L277 CegarLoopForPetriNet]: 540 programPoint places, -29 predicate places. [2024-11-22 18:07:40,582 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 404 transitions, 1119 flow [2024-11-22 18:07:40,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1653.25) internal successors, (6613), 4 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:07:40,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:07:40,582 INFO L204 CegarLoopForPetriNet]: trace histogram [52, 52, 52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:07:40,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2024-11-22 18:07:40,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-22 18:07:40,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:07:40,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1541294358, now seen corresponding path program 1 times [2024-11-22 18:07:40,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:07:40,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373074588] [2024-11-22 18:07:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:07:40,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:07:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:40,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:07:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:07:40,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:07:40,975 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:07:40,975 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (58 of 59 remaining) [2024-11-22 18:07:40,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2024-11-22 18:07:40,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2024-11-22 18:07:40,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2024-11-22 18:07:40,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2024-11-22 18:07:40,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2024-11-22 18:07:40,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2024-11-22 18:07:40,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2024-11-22 18:07:40,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2024-11-22 18:07:40,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2024-11-22 18:07:40,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2024-11-22 18:07:40,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2024-11-22 18:07:40,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2024-11-22 18:07:40,978 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 18:07:40,978 WARN L244 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:07:40,978 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances.