./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.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 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:02:42,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:02:42,867 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:02:42,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:02:42,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:02:42,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:02:42,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:02:42,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:02:42,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:02:42,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:02:42,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:02:42,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:02:42,910 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:02:42,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:02:42,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:02:42,912 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:02:42,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:02:42,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:02:42,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:02:42,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:02:42,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:02:42,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:02:42,916 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:02:42,916 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:02:42,917 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:02:42,917 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:02:42,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:02:42,917 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:02:42,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:02:42,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:02:42,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:02:42,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:02:42,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:02:42,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:02:42,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:02:42,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:02:42,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:02:42,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:02:42,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:02:42,921 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:02:42,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:02:42,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2024-10-14 17:02:43,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:02:43,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:02:43,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:02:43,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:02:43,257 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:02:43,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-10-14 17:02:44,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:02:44,908 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:02:44,909 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-10-14 17:02:44,935 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be5d2af0/b4d6fa6163d244c48edcadae3ee098aa/FLAG941f8ef2b [2024-10-14 17:02:44,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be5d2af0/b4d6fa6163d244c48edcadae3ee098aa [2024-10-14 17:02:44,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:02:44,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:02:44,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:02:44,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:02:44,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:02:44,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:02:44" (1/1) ... [2024-10-14 17:02:44,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6137010c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:44, skipping insertion in model container [2024-10-14 17:02:44,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:02:44" (1/1) ... [2024-10-14 17:02:45,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:02:45,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:02:45,475 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:02:45,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:02:45,602 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:02:45,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45 WrapperNode [2024-10-14 17:02:45,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:02:45,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:02:45,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:02:45,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:02:45,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,686 INFO L138 Inliner]: procedures = 224, calls = 44, calls flagged for inlining = 16, calls inlined = 10, statements flattened = 197 [2024-10-14 17:02:45,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:02:45,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:02:45,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:02:45,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:02:45,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:02:45,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:02:45,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:02:45,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:02:45,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (1/1) ... [2024-10-14 17:02:45,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:02:45,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:02:45,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:02:45,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:02:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:02:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:02:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:02:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:02:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:02:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:02:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2024-10-14 17:02:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2024-10-14 17:02:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:02:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:02:45,862 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:02:46,021 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:02:46,027 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:02:46,467 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:02:46,468 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:02:46,492 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:02:46,493 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-14 17:02:46,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:02:46 BoogieIcfgContainer [2024-10-14 17:02:46,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:02:46,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:02:46,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:02:46,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:02:46,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:02:44" (1/3) ... [2024-10-14 17:02:46,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ff0c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:02:46, skipping insertion in model container [2024-10-14 17:02:46,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:45" (2/3) ... [2024-10-14 17:02:46,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ff0c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:02:46, skipping insertion in model container [2024-10-14 17:02:46,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:02:46" (3/3) ... [2024-10-14 17:02:46,504 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2024-10-14 17:02:46,519 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:02:46,520 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-14 17:02:46,520 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:02:46,624 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:02:46,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 237 transitions, 481 flow [2024-10-14 17:02:46,758 INFO L124 PetriNetUnfolderBase]: 12/236 cut-off events. [2024-10-14 17:02:46,760 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:02:46,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 236 events. 12/236 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 531 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2024-10-14 17:02:46,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 237 transitions, 481 flow [2024-10-14 17:02:46,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 230 transitions, 463 flow [2024-10-14 17:02:46,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:02:46,806 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;@299d204f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:02:46,807 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-10-14 17:02:46,816 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:02:46,816 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-14 17:02:46,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:02:46,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:46,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:46,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:46,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash 824070514, now seen corresponding path program 1 times [2024-10-14 17:02:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:46,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881856172] [2024-10-14 17:02:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:47,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:47,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881856172] [2024-10-14 17:02:47,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881856172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:47,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:47,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:47,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877534206] [2024-10-14 17:02:47,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:47,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:47,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:47,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:47,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:48,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 237 [2024-10-14 17:02:48,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 230 transitions, 463 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:48,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:48,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 237 [2024-10-14 17:02:48,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:48,594 INFO L124 PetriNetUnfolderBase]: 675/3079 cut-off events. [2024-10-14 17:02:48,595 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:02:48,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4374 conditions, 3079 events. 675/3079 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24329 event pairs, 576 based on Foata normal form. 296/3069 useless extension candidates. Maximal degree in co-relation 4315. Up to 1286 conditions per place. [2024-10-14 17:02:48,662 INFO L140 encePairwiseOnDemand]: 222/237 looper letters, 54 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2024-10-14 17:02:48,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 217 transitions, 555 flow [2024-10-14 17:02:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:48,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1071 transitions. [2024-10-14 17:02:48,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7531645569620253 [2024-10-14 17:02:48,688 INFO L175 Difference]: Start difference. First operand has 222 places, 230 transitions, 463 flow. Second operand 6 states and 1071 transitions. [2024-10-14 17:02:48,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 217 transitions, 555 flow [2024-10-14 17:02:48,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 217 transitions, 554 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:02:48,698 INFO L231 Difference]: Finished difference. Result has 222 places, 217 transitions, 446 flow [2024-10-14 17:02:48,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=222, PETRI_TRANSITIONS=217} [2024-10-14 17:02:48,704 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 0 predicate places. [2024-10-14 17:02:48,707 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 217 transitions, 446 flow [2024-10-14 17:02:48,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:48,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:48,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:48,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:02:48,709 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:48,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1711871567, now seen corresponding path program 1 times [2024-10-14 17:02:48,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:48,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977036071] [2024-10-14 17:02:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:48,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:48,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:48,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977036071] [2024-10-14 17:02:48,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977036071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:48,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:48,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:48,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012194729] [2024-10-14 17:02:48,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:48,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:48,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:48,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:48,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:49,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 237 [2024-10-14 17:02:49,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 217 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:49,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:49,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 237 [2024-10-14 17:02:49,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:49,706 INFO L124 PetriNetUnfolderBase]: 675/3078 cut-off events. [2024-10-14 17:02:49,707 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:02:49,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4378 conditions, 3078 events. 675/3078 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24264 event pairs, 576 based on Foata normal form. 0/2773 useless extension candidates. Maximal degree in co-relation 4327. Up to 1286 conditions per place. [2024-10-14 17:02:49,724 INFO L140 encePairwiseOnDemand]: 231/237 looper letters, 54 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2024-10-14 17:02:49,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 216 transitions, 562 flow [2024-10-14 17:02:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:49,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1062 transitions. [2024-10-14 17:02:49,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7468354430379747 [2024-10-14 17:02:49,728 INFO L175 Difference]: Start difference. First operand has 222 places, 217 transitions, 446 flow. Second operand 6 states and 1062 transitions. [2024-10-14 17:02:49,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 216 transitions, 562 flow [2024-10-14 17:02:49,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 216 transitions, 552 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:02:49,738 INFO L231 Difference]: Finished difference. Result has 221 places, 216 transitions, 444 flow [2024-10-14 17:02:49,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=221, PETRI_TRANSITIONS=216} [2024-10-14 17:02:49,740 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -1 predicate places. [2024-10-14 17:02:49,740 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 216 transitions, 444 flow [2024-10-14 17:02:49,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:49,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:49,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:49,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:02:49,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:49,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:49,742 INFO L85 PathProgramCache]: Analyzing trace with hash -464323946, now seen corresponding path program 1 times [2024-10-14 17:02:49,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:49,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770179614] [2024-10-14 17:02:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:49,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:50,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:50,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770179614] [2024-10-14 17:02:50,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770179614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:50,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:50,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:50,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324431125] [2024-10-14 17:02:50,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:50,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:50,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:50,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 237 [2024-10-14 17:02:50,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 216 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:50,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:50,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 237 [2024-10-14 17:02:50,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:51,063 INFO L124 PetriNetUnfolderBase]: 311/2118 cut-off events. [2024-10-14 17:02:51,066 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:02:51,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 2118 events. 311/2118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14654 event pairs, 64 based on Foata normal form. 0/1898 useless extension candidates. Maximal degree in co-relation 2665. Up to 452 conditions per place. [2024-10-14 17:02:51,085 INFO L140 encePairwiseOnDemand]: 216/237 looper letters, 39 selfloop transitions, 43 changer transitions 0/261 dead transitions. [2024-10-14 17:02:51,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 261 transitions, 698 flow [2024-10-14 17:02:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:51,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2024-10-14 17:02:51,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8607594936708861 [2024-10-14 17:02:51,089 INFO L175 Difference]: Start difference. First operand has 221 places, 216 transitions, 444 flow. Second operand 6 states and 1224 transitions. [2024-10-14 17:02:51,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 261 transitions, 698 flow [2024-10-14 17:02:51,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 261 transitions, 688 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:02:51,096 INFO L231 Difference]: Finished difference. Result has 226 places, 258 transitions, 730 flow [2024-10-14 17:02:51,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=226, PETRI_TRANSITIONS=258} [2024-10-14 17:02:51,098 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 4 predicate places. [2024-10-14 17:02:51,098 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 258 transitions, 730 flow [2024-10-14 17:02:51,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:51,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:51,099 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:51,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:02:51,100 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:51,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:51,101 INFO L85 PathProgramCache]: Analyzing trace with hash -348864802, now seen corresponding path program 1 times [2024-10-14 17:02:51,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:51,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447411381] [2024-10-14 17:02:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:51,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:51,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:51,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447411381] [2024-10-14 17:02:51,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447411381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:51,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:51,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:02:51,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644463961] [2024-10-14 17:02:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:51,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:02:51,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:02:51,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:02:51,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2024-10-14 17:02:51,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 258 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:51,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:51,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2024-10-14 17:02:51,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:51,451 INFO L124 PetriNetUnfolderBase]: 297/2369 cut-off events. [2024-10-14 17:02:51,451 INFO L125 PetriNetUnfolderBase]: For 238/272 co-relation queries the response was YES. [2024-10-14 17:02:51,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 2369 events. 297/2369 cut-off events. For 238/272 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 16877 event pairs, 16 based on Foata normal form. 1/2172 useless extension candidates. Maximal degree in co-relation 3412. Up to 342 conditions per place. [2024-10-14 17:02:51,471 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 3 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2024-10-14 17:02:51,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 259 transitions, 742 flow [2024-10-14 17:02:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:02:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:02:51,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2024-10-14 17:02:51,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9493670886075949 [2024-10-14 17:02:51,474 INFO L175 Difference]: Start difference. First operand has 226 places, 258 transitions, 730 flow. Second operand 3 states and 675 transitions. [2024-10-14 17:02:51,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 259 transitions, 742 flow [2024-10-14 17:02:51,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 259 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:02:51,483 INFO L231 Difference]: Finished difference. Result has 229 places, 259 transitions, 742 flow [2024-10-14 17:02:51,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=229, PETRI_TRANSITIONS=259} [2024-10-14 17:02:51,484 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 7 predicate places. [2024-10-14 17:02:51,484 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 259 transitions, 742 flow [2024-10-14 17:02:51,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:51,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:51,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:51,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:02:51,486 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:51,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -8247405, now seen corresponding path program 1 times [2024-10-14 17:02:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:51,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214043876] [2024-10-14 17:02:51,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:51,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:51,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:51,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:51,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214043876] [2024-10-14 17:02:51,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214043876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:51,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:51,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:51,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683374881] [2024-10-14 17:02:51,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:51,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:51,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:52,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 237 [2024-10-14 17:02:52,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 259 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:52,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:52,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 237 [2024-10-14 17:02:52,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:53,113 INFO L124 PetriNetUnfolderBase]: 780/4989 cut-off events. [2024-10-14 17:02:53,114 INFO L125 PetriNetUnfolderBase]: For 1078/1245 co-relation queries the response was YES. [2024-10-14 17:02:53,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8236 conditions, 4989 events. 780/4989 cut-off events. For 1078/1245 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 43674 event pairs, 132 based on Foata normal form. 68/4724 useless extension candidates. Maximal degree in co-relation 8174. Up to 1061 conditions per place. [2024-10-14 17:02:53,149 INFO L140 encePairwiseOnDemand]: 213/237 looper letters, 81 selfloop transitions, 45 changer transitions 0/309 dead transitions. [2024-10-14 17:02:53,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 309 transitions, 1154 flow [2024-10-14 17:02:53,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:53,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2024-10-14 17:02:53,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354430379746836 [2024-10-14 17:02:53,153 INFO L175 Difference]: Start difference. First operand has 229 places, 259 transitions, 742 flow. Second operand 6 states and 1188 transitions. [2024-10-14 17:02:53,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 309 transitions, 1154 flow [2024-10-14 17:02:53,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 309 transitions, 1152 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:02:53,161 INFO L231 Difference]: Finished difference. Result has 238 places, 303 transitions, 1132 flow [2024-10-14 17:02:53,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1132, PETRI_PLACES=238, PETRI_TRANSITIONS=303} [2024-10-14 17:02:53,163 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 16 predicate places. [2024-10-14 17:02:53,163 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 303 transitions, 1132 flow [2024-10-14 17:02:53,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:53,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:53,164 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:53,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:02:53,164 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:53,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:53,165 INFO L85 PathProgramCache]: Analyzing trace with hash -856788738, now seen corresponding path program 1 times [2024-10-14 17:02:53,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:53,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538348800] [2024-10-14 17:02:53,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:53,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:53,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:53,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538348800] [2024-10-14 17:02:53,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538348800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:53,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:53,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:53,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385661061] [2024-10-14 17:02:53,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:53,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:53,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:53,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:53,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:54,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 237 [2024-10-14 17:02:54,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 303 transitions, 1132 flow. Second operand has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:54,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:54,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 237 [2024-10-14 17:02:54,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:55,089 INFO L124 PetriNetUnfolderBase]: 1108/6651 cut-off events. [2024-10-14 17:02:55,089 INFO L125 PetriNetUnfolderBase]: For 5148/6037 co-relation queries the response was YES. [2024-10-14 17:02:55,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12895 conditions, 6651 events. 1108/6651 cut-off events. For 5148/6037 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 61362 event pairs, 156 based on Foata normal form. 167/6399 useless extension candidates. Maximal degree in co-relation 12829. Up to 1419 conditions per place. [2024-10-14 17:02:55,143 INFO L140 encePairwiseOnDemand]: 222/237 looper letters, 94 selfloop transitions, 78 changer transitions 0/380 dead transitions. [2024-10-14 17:02:55,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 380 transitions, 1934 flow [2024-10-14 17:02:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:55,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2024-10-14 17:02:55,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8720112517580872 [2024-10-14 17:02:55,147 INFO L175 Difference]: Start difference. First operand has 238 places, 303 transitions, 1132 flow. Second operand 6 states and 1240 transitions. [2024-10-14 17:02:55,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 380 transitions, 1934 flow [2024-10-14 17:02:55,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 380 transitions, 1934 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:02:55,168 INFO L231 Difference]: Finished difference. Result has 248 places, 380 transitions, 1950 flow [2024-10-14 17:02:55,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1950, PETRI_PLACES=248, PETRI_TRANSITIONS=380} [2024-10-14 17:02:55,171 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 26 predicate places. [2024-10-14 17:02:55,172 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 380 transitions, 1950 flow [2024-10-14 17:02:55,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:55,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:55,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:55,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:02:55,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:55,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:55,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1158210824, now seen corresponding path program 1 times [2024-10-14 17:02:55,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:55,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048777503] [2024-10-14 17:02:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:55,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:55,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048777503] [2024-10-14 17:02:55,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048777503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:55,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:55,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:55,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834976054] [2024-10-14 17:02:55,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:55,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:55,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:55,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:56,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 237 [2024-10-14 17:02:56,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 380 transitions, 1950 flow. Second operand has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:56,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:56,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 237 [2024-10-14 17:02:56,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:57,132 INFO L124 PetriNetUnfolderBase]: 1128/7187 cut-off events. [2024-10-14 17:02:57,132 INFO L125 PetriNetUnfolderBase]: For 7186/7956 co-relation queries the response was YES. [2024-10-14 17:02:57,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14883 conditions, 7187 events. 1128/7187 cut-off events. For 7186/7956 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 69043 event pairs, 107 based on Foata normal form. 192/6998 useless extension candidates. Maximal degree in co-relation 14812. Up to 1090 conditions per place. [2024-10-14 17:02:57,189 INFO L140 encePairwiseOnDemand]: 226/237 looper letters, 103 selfloop transitions, 66 changer transitions 0/445 dead transitions. [2024-10-14 17:02:57,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 445 transitions, 2720 flow [2024-10-14 17:02:57,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1258 transitions. [2024-10-14 17:02:57,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8846694796061885 [2024-10-14 17:02:57,193 INFO L175 Difference]: Start difference. First operand has 248 places, 380 transitions, 1950 flow. Second operand 6 states and 1258 transitions. [2024-10-14 17:02:57,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 445 transitions, 2720 flow [2024-10-14 17:02:57,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 445 transitions, 2720 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:02:57,215 INFO L231 Difference]: Finished difference. Result has 258 places, 442 transitions, 2712 flow [2024-10-14 17:02:57,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1950, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2712, PETRI_PLACES=258, PETRI_TRANSITIONS=442} [2024-10-14 17:02:57,216 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 36 predicate places. [2024-10-14 17:02:57,216 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 442 transitions, 2712 flow [2024-10-14 17:02:57,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:57,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:57,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:57,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:02:57,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:02:57,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1378030033, now seen corresponding path program 1 times [2024-10-14 17:02:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613522504] [2024-10-14 17:02:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:57,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:57,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613522504] [2024-10-14 17:02:57,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613522504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:57,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:57,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:57,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121078724] [2024-10-14 17:02:57,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:57,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:57,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:57,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:57,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:57,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 237 [2024-10-14 17:02:57,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 442 transitions, 2712 flow. Second operand has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:02:57,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:57,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 237 [2024-10-14 17:02:57,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:00,798 INFO L124 PetriNetUnfolderBase]: 5261/16665 cut-off events. [2024-10-14 17:03:00,798 INFO L125 PetriNetUnfolderBase]: For 19400/19700 co-relation queries the response was YES. [2024-10-14 17:03:00,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44613 conditions, 16665 events. 5261/16665 cut-off events. For 19400/19700 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 158396 event pairs, 2287 based on Foata normal form. 50/15799 useless extension candidates. Maximal degree in co-relation 44537. Up to 9666 conditions per place. [2024-10-14 17:03:00,940 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 260 selfloop transitions, 156 changer transitions 0/573 dead transitions. [2024-10-14 17:03:00,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 573 transitions, 4280 flow [2024-10-14 17:03:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:03:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:03:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2024-10-14 17:03:00,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7974683544303798 [2024-10-14 17:03:00,944 INFO L175 Difference]: Start difference. First operand has 258 places, 442 transitions, 2712 flow. Second operand 6 states and 1134 transitions. [2024-10-14 17:03:00,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 573 transitions, 4280 flow [2024-10-14 17:03:01,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 573 transitions, 4280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:03:01,040 INFO L231 Difference]: Finished difference. Result has 268 places, 573 transitions, 4180 flow [2024-10-14 17:03:01,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2712, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4180, PETRI_PLACES=268, PETRI_TRANSITIONS=573} [2024-10-14 17:03:01,043 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 46 predicate places. [2024-10-14 17:03:01,043 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 573 transitions, 4180 flow [2024-10-14 17:03:01,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:01,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:01,044 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:01,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:03:01,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:03:01,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:01,045 INFO L85 PathProgramCache]: Analyzing trace with hash 481416421, now seen corresponding path program 1 times [2024-10-14 17:03:01,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:01,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288130770] [2024-10-14 17:03:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:01,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:01,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:01,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288130770] [2024-10-14 17:03:01,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288130770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:01,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:01,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:03:01,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917460870] [2024-10-14 17:03:01,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:01,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:03:01,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:01,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:03:01,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:03:01,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 237 [2024-10-14 17:03:01,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 573 transitions, 4180 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:01,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:01,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 237 [2024-10-14 17:03:01,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:05,139 INFO L124 PetriNetUnfolderBase]: 5567/17507 cut-off events. [2024-10-14 17:03:05,139 INFO L125 PetriNetUnfolderBase]: For 29328/29582 co-relation queries the response was YES. [2024-10-14 17:03:05,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52930 conditions, 17507 events. 5567/17507 cut-off events. For 29328/29582 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 167558 event pairs, 2232 based on Foata normal form. 12/16658 useless extension candidates. Maximal degree in co-relation 52849. Up to 9984 conditions per place. [2024-10-14 17:03:05,269 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 372 selfloop transitions, 167 changer transitions 0/700 dead transitions. [2024-10-14 17:03:05,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 700 transitions, 5924 flow [2024-10-14 17:03:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:03:05,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:03:05,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2024-10-14 17:03:05,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7974683544303798 [2024-10-14 17:03:05,274 INFO L175 Difference]: Start difference. First operand has 268 places, 573 transitions, 4180 flow. Second operand 6 states and 1134 transitions. [2024-10-14 17:03:05,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 700 transitions, 5924 flow [2024-10-14 17:03:05,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 700 transitions, 5692 flow, removed 116 selfloop flow, removed 0 redundant places. [2024-10-14 17:03:05,400 INFO L231 Difference]: Finished difference. Result has 278 places, 700 transitions, 5388 flow [2024-10-14 17:03:05,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=3960, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5388, PETRI_PLACES=278, PETRI_TRANSITIONS=700} [2024-10-14 17:03:05,403 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 56 predicate places. [2024-10-14 17:03:05,403 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 700 transitions, 5388 flow [2024-10-14 17:03:05,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:05,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:05,404 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:05,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:03:05,405 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:03:05,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash -61528390, now seen corresponding path program 1 times [2024-10-14 17:03:05,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:05,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19678615] [2024-10-14 17:03:05,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:05,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:08,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:08,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19678615] [2024-10-14 17:03:08,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19678615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:08,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:08,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-14 17:03:08,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317458197] [2024-10-14 17:03:08,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:08,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 17:03:08,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:08,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 17:03:08,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-10-14 17:03:13,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 237 [2024-10-14 17:03:13,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 700 transitions, 5388 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:13,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:13,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 237 [2024-10-14 17:03:13,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:19,360 INFO L124 PetriNetUnfolderBase]: 6299/25454 cut-off events. [2024-10-14 17:03:19,360 INFO L125 PetriNetUnfolderBase]: For 56546/58157 co-relation queries the response was YES. [2024-10-14 17:03:19,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75329 conditions, 25454 events. 6299/25454 cut-off events. For 56546/58157 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 288951 event pairs, 825 based on Foata normal form. 329/24746 useless extension candidates. Maximal degree in co-relation 75235. Up to 7429 conditions per place. [2024-10-14 17:03:19,563 INFO L140 encePairwiseOnDemand]: 198/237 looper letters, 976 selfloop transitions, 193 changer transitions 0/1447 dead transitions. [2024-10-14 17:03:19,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 1447 transitions, 13948 flow [2024-10-14 17:03:19,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-14 17:03:19,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-14 17:03:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5762 transitions. [2024-10-14 17:03:19,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6946353224834237 [2024-10-14 17:03:19,580 INFO L175 Difference]: Start difference. First operand has 278 places, 700 transitions, 5388 flow. Second operand 35 states and 5762 transitions. [2024-10-14 17:03:19,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 1447 transitions, 13948 flow [2024-10-14 17:03:19,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1447 transitions, 13792 flow, removed 78 selfloop flow, removed 0 redundant places. [2024-10-14 17:03:19,831 INFO L231 Difference]: Finished difference. Result has 337 places, 901 transitions, 8389 flow [2024-10-14 17:03:19,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=5232, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=8389, PETRI_PLACES=337, PETRI_TRANSITIONS=901} [2024-10-14 17:03:19,834 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 115 predicate places. [2024-10-14 17:03:19,834 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 901 transitions, 8389 flow [2024-10-14 17:03:19,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:19,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:19,836 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:19,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:03:19,836 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:03:19,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:19,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1605293912, now seen corresponding path program 2 times [2024-10-14 17:03:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:19,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397378441] [2024-10-14 17:03:19,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:19,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:22,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:22,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397378441] [2024-10-14 17:03:22,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397378441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:22,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:22,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-14 17:03:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140422660] [2024-10-14 17:03:22,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:22,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 17:03:22,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:22,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 17:03:22,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-10-14 17:03:26,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 237 [2024-10-14 17:03:26,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 901 transitions, 8389 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:26,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:26,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 237 [2024-10-14 17:03:26,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:34,486 INFO L124 PetriNetUnfolderBase]: 7808/30941 cut-off events. [2024-10-14 17:03:34,486 INFO L125 PetriNetUnfolderBase]: For 100275/102675 co-relation queries the response was YES. [2024-10-14 17:03:34,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101045 conditions, 30941 events. 7808/30941 cut-off events. For 100275/102675 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 359930 event pairs, 1461 based on Foata normal form. 310/29916 useless extension candidates. Maximal degree in co-relation 100918. Up to 10376 conditions per place. [2024-10-14 17:03:34,891 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 936 selfloop transitions, 143 changer transitions 0/1357 dead transitions. [2024-10-14 17:03:34,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1357 transitions, 14750 flow [2024-10-14 17:03:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-14 17:03:34,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-10-14 17:03:34,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4326 transitions. [2024-10-14 17:03:34,902 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7020447906523856 [2024-10-14 17:03:34,902 INFO L175 Difference]: Start difference. First operand has 337 places, 901 transitions, 8389 flow. Second operand 26 states and 4326 transitions. [2024-10-14 17:03:34,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1357 transitions, 14750 flow [2024-10-14 17:03:35,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1357 transitions, 14709 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-10-14 17:03:35,252 INFO L231 Difference]: Finished difference. Result has 373 places, 1024 transitions, 10768 flow [2024-10-14 17:03:35,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=8348, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10768, PETRI_PLACES=373, PETRI_TRANSITIONS=1024} [2024-10-14 17:03:35,253 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 151 predicate places. [2024-10-14 17:03:35,253 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 1024 transitions, 10768 flow [2024-10-14 17:03:35,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:35,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:35,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:35,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:03:35,256 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:03:35,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:35,256 INFO L85 PathProgramCache]: Analyzing trace with hash -468425432, now seen corresponding path program 3 times [2024-10-14 17:03:35,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:35,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533382841] [2024-10-14 17:03:35,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:35,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:37,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:37,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533382841] [2024-10-14 17:03:37,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533382841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:37,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:37,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-14 17:03:37,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309755417] [2024-10-14 17:03:37,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:37,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 17:03:37,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:37,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 17:03:37,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2024-10-14 17:03:41,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 237 [2024-10-14 17:03:41,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 1024 transitions, 10768 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:41,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:41,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 237 [2024-10-14 17:03:41,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:52,290 INFO L124 PetriNetUnfolderBase]: 9143/36365 cut-off events. [2024-10-14 17:03:52,290 INFO L125 PetriNetUnfolderBase]: For 142695/145740 co-relation queries the response was YES. [2024-10-14 17:03:52,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123151 conditions, 36365 events. 9143/36365 cut-off events. For 142695/145740 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 437101 event pairs, 1798 based on Foata normal form. 365/35080 useless extension candidates. Maximal degree in co-relation 123005. Up to 11998 conditions per place. [2024-10-14 17:03:52,871 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 1057 selfloop transitions, 195 changer transitions 0/1530 dead transitions. [2024-10-14 17:03:52,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1530 transitions, 18510 flow [2024-10-14 17:03:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 17:03:52,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-14 17:03:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5275 transitions. [2024-10-14 17:03:52,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6955432489451476 [2024-10-14 17:03:52,880 INFO L175 Difference]: Start difference. First operand has 373 places, 1024 transitions, 10768 flow. Second operand 32 states and 5275 transitions. [2024-10-14 17:03:52,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1530 transitions, 18510 flow [2024-10-14 17:03:53,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1530 transitions, 18310 flow, removed 93 selfloop flow, removed 7 redundant places. [2024-10-14 17:03:53,407 INFO L231 Difference]: Finished difference. Result has 419 places, 1170 transitions, 13696 flow [2024-10-14 17:03:53,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=10572, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1024, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=886, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=13696, PETRI_PLACES=419, PETRI_TRANSITIONS=1170} [2024-10-14 17:03:53,408 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 197 predicate places. [2024-10-14 17:03:53,408 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 1170 transitions, 13696 flow [2024-10-14 17:03:53,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:53,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:53,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:53,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:03:53,410 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 17:03:53,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1312985492, now seen corresponding path program 4 times [2024-10-14 17:03:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:53,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077198354] [2024-10-14 17:03:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:54,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:54,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077198354] [2024-10-14 17:03:54,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077198354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:54,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:54,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-14 17:03:54,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964469540] [2024-10-14 17:03:54,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:54,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 17:03:54,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:54,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 17:03:54,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:03:56,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 237 [2024-10-14 17:03:56,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1170 transitions, 13696 flow. Second operand has 18 states, 18 states have (on average 166.61111111111111) internal successors, (2999), 18 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:56,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:56,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 237 [2024-10-14 17:03:56,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand