./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c69d99d457f457373aeec8cf091a3652593de03a43f690cddfeb4bfa1e12a5f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:45:11,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:45:11,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:45:11,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:45:11,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:45:12,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:45:12,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:45:12,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:45:12,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:45:12,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:45:12,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:45:12,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:45:12,021 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:45:12,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:45:12,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:45:12,023 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:45:12,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:45:12,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:45:12,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:45:12,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:45:12,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:45:12,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:45:12,027 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:45:12,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:45:12,027 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:45:12,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:45:12,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:45:12,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:45:12,028 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:45:12,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:45:12,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:45:12,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:45:12,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:45:12,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:45:12,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:45:12,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:45:12,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:45:12,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:45:12,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:45:12,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:45:12,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:45:12,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c69d99d457f457373aeec8cf091a3652593de03a43f690cddfeb4bfa1e12a5f [2024-11-16 23:45:12,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:45:12,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:45:12,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:45:12,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:45:12,246 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:45:12,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2024-11-16 23:45:13,459 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:45:13,626 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:45:13,626 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2024-11-16 23:45:13,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376da6fb6/c9357e2a23014ff6ac84d5121054adbe/FLAG5fee5a9db [2024-11-16 23:45:13,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376da6fb6/c9357e2a23014ff6ac84d5121054adbe [2024-11-16 23:45:13,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:45:13,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:45:13,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:45:13,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:45:13,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:45:13,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3abba298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13, skipping insertion in model container [2024-11-16 23:45:13,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:45:13,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:45:13,880 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:45:13,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:45:13,922 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:45:13,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13 WrapperNode [2024-11-16 23:45:13,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:45:13,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:45:13,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:45:13,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:45:13,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,957 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 256 [2024-11-16 23:45:13,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:45:13,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:45:13,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:45:13,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:45:13,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,972 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:45:13,979 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:45:13,979 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:45:13,979 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:45:13,979 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (1/1) ... [2024-11-16 23:45:13,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:45:14,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:45:14,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:45:14,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:45:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:45:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 23:45:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 23:45:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 23:45:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 23:45:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-16 23:45:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-16 23:45:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-16 23:45:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-16 23:45:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:45:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-16 23:45:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-16 23:45:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:45:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:45:14,060 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:45:14,168 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:45:14,170 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:45:14,419 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:45:14,421 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:45:14,475 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:45:14,475 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:45:14,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:45:14 BoogieIcfgContainer [2024-11-16 23:45:14,476 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:45:14,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:45:14,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:45:14,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:45:14,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:45:13" (1/3) ... [2024-11-16 23:45:14,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd51c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:14, skipping insertion in model container [2024-11-16 23:45:14,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:13" (2/3) ... [2024-11-16 23:45:14,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd51c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:14, skipping insertion in model container [2024-11-16 23:45:14,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:45:14" (3/3) ... [2024-11-16 23:45:14,486 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-11-16 23:45:14,535 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:45:14,537 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-11-16 23:45:14,537 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:45:14,665 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-16 23:45:14,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 281 transitions, 597 flow [2024-11-16 23:45:14,810 INFO L124 PetriNetUnfolderBase]: 11/276 cut-off events. [2024-11-16 23:45:14,810 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-16 23:45:14,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 276 events. 11/276 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 492 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 233. Up to 2 conditions per place. [2024-11-16 23:45:14,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 281 transitions, 597 flow [2024-11-16 23:45:14,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 259 transitions, 545 flow [2024-11-16 23:45:14,834 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:45:14,841 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;@3dcf0ce7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:45:14,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-16 23:45:14,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:45:14,846 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-16 23:45:14,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:45:14,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:14,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:14,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:14,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1403137194, now seen corresponding path program 1 times [2024-11-16 23:45:14,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:14,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868403409] [2024-11-16 23:45:14,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:14,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:15,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:15,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868403409] [2024-11-16 23:45:15,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868403409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:15,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:15,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:15,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549473974] [2024-11-16 23:45:15,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:15,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:15,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:15,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:15,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:15,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 281 [2024-11-16 23:45:15,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 259 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:15,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:15,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 281 [2024-11-16 23:45:15,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:18,319 INFO L124 PetriNetUnfolderBase]: 8140/22951 cut-off events. [2024-11-16 23:45:18,320 INFO L125 PetriNetUnfolderBase]: For 1237/1237 co-relation queries the response was YES. [2024-11-16 23:45:18,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34557 conditions, 22951 events. 8140/22951 cut-off events. For 1237/1237 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 261578 event pairs, 5691 based on Foata normal form. 1950/21769 useless extension candidates. Maximal degree in co-relation 33945. Up to 10336 conditions per place. [2024-11-16 23:45:18,644 INFO L140 encePairwiseOnDemand]: 272/281 looper letters, 34 selfloop transitions, 2 changer transitions 1/252 dead transitions. [2024-11-16 23:45:18,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 252 transitions, 603 flow [2024-11-16 23:45:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 745 transitions. [2024-11-16 23:45:18,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8837485172004745 [2024-11-16 23:45:18,665 INFO L175 Difference]: Start difference. First operand has 265 places, 259 transitions, 545 flow. Second operand 3 states and 745 transitions. [2024-11-16 23:45:18,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 252 transitions, 603 flow [2024-11-16 23:45:18,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 252 transitions, 586 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-11-16 23:45:18,690 INFO L231 Difference]: Finished difference. Result has 257 places, 251 transitions, 516 flow [2024-11-16 23:45:18,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=257, PETRI_TRANSITIONS=251} [2024-11-16 23:45:18,697 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -8 predicate places. [2024-11-16 23:45:18,698 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 251 transitions, 516 flow [2024-11-16 23:45:18,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:18,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:18,699 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] [2024-11-16 23:45:18,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:45:18,700 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:18,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:18,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1549010254, now seen corresponding path program 1 times [2024-11-16 23:45:18,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:18,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726955688] [2024-11-16 23:45:18,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:18,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:18,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:18,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726955688] [2024-11-16 23:45:18,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726955688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:18,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:18,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:18,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392284779] [2024-11-16 23:45:18,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:18,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:18,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:18,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:18,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:18,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 281 [2024-11-16 23:45:18,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 251 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:18,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:18,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 281 [2024-11-16 23:45:18,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:21,515 INFO L124 PetriNetUnfolderBase]: 9181/24265 cut-off events. [2024-11-16 23:45:21,515 INFO L125 PetriNetUnfolderBase]: For 358/358 co-relation queries the response was YES. [2024-11-16 23:45:21,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36917 conditions, 24265 events. 9181/24265 cut-off events. For 358/358 co-relation queries the response was YES. Maximal size of possible extension queue 888. Compared 270334 event pairs, 6649 based on Foata normal form. 0/21005 useless extension candidates. Maximal degree in co-relation 36881. Up to 11675 conditions per place. [2024-11-16 23:45:21,889 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 34 selfloop transitions, 2 changer transitions 0/250 dead transitions. [2024-11-16 23:45:21,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 250 transitions, 586 flow [2024-11-16 23:45:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:21,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-16 23:45:21,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766310794780545 [2024-11-16 23:45:21,891 INFO L175 Difference]: Start difference. First operand has 257 places, 251 transitions, 516 flow. Second operand 3 states and 739 transitions. [2024-11-16 23:45:21,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 250 transitions, 586 flow [2024-11-16 23:45:21,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 250 transitions, 582 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:21,899 INFO L231 Difference]: Finished difference. Result has 255 places, 250 transitions, 514 flow [2024-11-16 23:45:21,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=255, PETRI_TRANSITIONS=250} [2024-11-16 23:45:21,900 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -10 predicate places. [2024-11-16 23:45:21,900 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 250 transitions, 514 flow [2024-11-16 23:45:21,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:21,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:21,901 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] [2024-11-16 23:45:21,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:45:21,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:21,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:21,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1182845625, now seen corresponding path program 1 times [2024-11-16 23:45:21,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:21,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493444203] [2024-11-16 23:45:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:21,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:21,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493444203] [2024-11-16 23:45:21,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493444203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:21,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:21,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:21,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718863113] [2024-11-16 23:45:21,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:21,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:21,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:21,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:21,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:21,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 281 [2024-11-16 23:45:21,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 250 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:21,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:21,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 281 [2024-11-16 23:45:21,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:24,620 INFO L124 PetriNetUnfolderBase]: 9267/24292 cut-off events. [2024-11-16 23:45:24,624 INFO L125 PetriNetUnfolderBase]: For 375/375 co-relation queries the response was YES. [2024-11-16 23:45:24,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37061 conditions, 24292 events. 9267/24292 cut-off events. For 375/375 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 270352 event pairs, 6740 based on Foata normal form. 0/20919 useless extension candidates. Maximal degree in co-relation 37017. Up to 11781 conditions per place. [2024-11-16 23:45:24,829 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 34 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2024-11-16 23:45:24,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 249 transitions, 584 flow [2024-11-16 23:45:24,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-16 23:45:24,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766310794780545 [2024-11-16 23:45:24,835 INFO L175 Difference]: Start difference. First operand has 255 places, 250 transitions, 514 flow. Second operand 3 states and 739 transitions. [2024-11-16 23:45:24,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 249 transitions, 584 flow [2024-11-16 23:45:24,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 249 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:24,838 INFO L231 Difference]: Finished difference. Result has 254 places, 249 transitions, 512 flow [2024-11-16 23:45:24,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=254, PETRI_TRANSITIONS=249} [2024-11-16 23:45:24,841 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -11 predicate places. [2024-11-16 23:45:24,841 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 249 transitions, 512 flow [2024-11-16 23:45:24,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:24,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:24,842 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] [2024-11-16 23:45:24,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:45:24,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:24,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:24,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1364562042, now seen corresponding path program 1 times [2024-11-16 23:45:24,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:24,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814112337] [2024-11-16 23:45:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:24,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:24,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:24,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814112337] [2024-11-16 23:45:24,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814112337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:24,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:24,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:24,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770774194] [2024-11-16 23:45:24,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:24,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:24,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:24,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:24,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:24,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 281 [2024-11-16 23:45:24,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 249 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:24,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:24,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 281 [2024-11-16 23:45:24,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:27,303 INFO L124 PetriNetUnfolderBase]: 9706/21096 cut-off events. [2024-11-16 23:45:27,304 INFO L125 PetriNetUnfolderBase]: For 417/417 co-relation queries the response was YES. [2024-11-16 23:45:27,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34356 conditions, 21096 events. 9706/21096 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 886. Compared 205809 event pairs, 7189 based on Foata normal form. 0/18384 useless extension candidates. Maximal degree in co-relation 34304. Up to 12334 conditions per place. [2024-11-16 23:45:27,498 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 34 selfloop transitions, 2 changer transitions 0/248 dead transitions. [2024-11-16 23:45:27,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 248 transitions, 582 flow [2024-11-16 23:45:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:27,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-16 23:45:27,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766310794780545 [2024-11-16 23:45:27,500 INFO L175 Difference]: Start difference. First operand has 254 places, 249 transitions, 512 flow. Second operand 3 states and 739 transitions. [2024-11-16 23:45:27,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 248 transitions, 582 flow [2024-11-16 23:45:27,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 248 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:27,503 INFO L231 Difference]: Finished difference. Result has 253 places, 248 transitions, 510 flow [2024-11-16 23:45:27,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=253, PETRI_TRANSITIONS=248} [2024-11-16 23:45:27,504 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -12 predicate places. [2024-11-16 23:45:27,505 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 248 transitions, 510 flow [2024-11-16 23:45:27,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:27,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:27,505 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] [2024-11-16 23:45:27,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:45:27,506 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:27,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1867238146, now seen corresponding path program 1 times [2024-11-16 23:45:27,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:27,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81574948] [2024-11-16 23:45:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:27,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:27,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:27,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:27,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81574948] [2024-11-16 23:45:27,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81574948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:27,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:27,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:27,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725263607] [2024-11-16 23:45:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:27,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:27,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:27,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:27,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:27,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 281 [2024-11-16 23:45:27,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 248 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:27,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:27,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 281 [2024-11-16 23:45:27,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:29,954 INFO L124 PetriNetUnfolderBase]: 8685/22770 cut-off events. [2024-11-16 23:45:29,954 INFO L125 PetriNetUnfolderBase]: For 375/375 co-relation queries the response was YES. [2024-11-16 23:45:30,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34475 conditions, 22770 events. 8685/22770 cut-off events. For 375/375 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 248687 event pairs, 6215 based on Foata normal form. 0/19671 useless extension candidates. Maximal degree in co-relation 34415. Up to 11049 conditions per place. [2024-11-16 23:45:30,186 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 34 selfloop transitions, 2 changer transitions 0/247 dead transitions. [2024-11-16 23:45:30,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 247 transitions, 580 flow [2024-11-16 23:45:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:30,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-16 23:45:30,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766310794780545 [2024-11-16 23:45:30,189 INFO L175 Difference]: Start difference. First operand has 253 places, 248 transitions, 510 flow. Second operand 3 states and 739 transitions. [2024-11-16 23:45:30,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 247 transitions, 580 flow [2024-11-16 23:45:30,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 247 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:30,193 INFO L231 Difference]: Finished difference. Result has 252 places, 247 transitions, 508 flow [2024-11-16 23:45:30,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=252, PETRI_TRANSITIONS=247} [2024-11-16 23:45:30,194 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -13 predicate places. [2024-11-16 23:45:30,194 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 247 transitions, 508 flow [2024-11-16 23:45:30,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:30,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:30,195 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] [2024-11-16 23:45:30,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:45:30,195 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:30,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:30,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1355327156, now seen corresponding path program 1 times [2024-11-16 23:45:30,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:30,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239019178] [2024-11-16 23:45:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:30,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:30,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:30,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239019178] [2024-11-16 23:45:30,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239019178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:30,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:30,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:30,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93263533] [2024-11-16 23:45:30,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:30,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:30,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:30,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:30,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:30,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 281 [2024-11-16 23:45:30,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 247 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:30,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:30,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 281 [2024-11-16 23:45:30,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:33,276 INFO L124 PetriNetUnfolderBase]: 11755/30292 cut-off events. [2024-11-16 23:45:33,276 INFO L125 PetriNetUnfolderBase]: For 228/228 co-relation queries the response was YES. [2024-11-16 23:45:33,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46458 conditions, 30292 events. 11755/30292 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 1223. Compared 345912 event pairs, 6460 based on Foata normal form. 0/26232 useless extension candidates. Maximal degree in co-relation 46390. Up to 11588 conditions per place. [2024-11-16 23:45:33,796 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 49 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2024-11-16 23:45:33,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 262 transitions, 645 flow [2024-11-16 23:45:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 760 transitions. [2024-11-16 23:45:33,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9015421115065243 [2024-11-16 23:45:33,799 INFO L175 Difference]: Start difference. First operand has 252 places, 247 transitions, 508 flow. Second operand 3 states and 760 transitions. [2024-11-16 23:45:33,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 262 transitions, 645 flow [2024-11-16 23:45:33,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 262 transitions, 641 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:33,803 INFO L231 Difference]: Finished difference. Result has 251 places, 246 transitions, 506 flow [2024-11-16 23:45:33,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=251, PETRI_TRANSITIONS=246} [2024-11-16 23:45:33,804 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -14 predicate places. [2024-11-16 23:45:33,804 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 246 transitions, 506 flow [2024-11-16 23:45:33,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:33,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:33,805 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:33,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:45:33,805 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:33,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash -620538826, now seen corresponding path program 1 times [2024-11-16 23:45:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:33,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628532037] [2024-11-16 23:45:33,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:33,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:33,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:33,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628532037] [2024-11-16 23:45:33,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628532037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:33,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:33,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:33,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37805567] [2024-11-16 23:45:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:33,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:33,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:33,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:33,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:33,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 281 [2024-11-16 23:45:33,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 246 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:33,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:33,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 281 [2024-11-16 23:45:33,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:36,253 INFO L124 PetriNetUnfolderBase]: 10729/21932 cut-off events. [2024-11-16 23:45:36,254 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-16 23:45:36,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36888 conditions, 21932 events. 10729/21932 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 1056. Compared 200982 event pairs, 5362 based on Foata normal form. 0/20327 useless extension candidates. Maximal degree in co-relation 27803. Up to 9906 conditions per place. [2024-11-16 23:45:36,437 INFO L140 encePairwiseOnDemand]: 279/281 looper letters, 48 selfloop transitions, 1 changer transitions 0/261 dead transitions. [2024-11-16 23:45:36,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 261 transitions, 639 flow [2024-11-16 23:45:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:36,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 764 transitions. [2024-11-16 23:45:36,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9062870699881376 [2024-11-16 23:45:36,439 INFO L175 Difference]: Start difference. First operand has 251 places, 246 transitions, 506 flow. Second operand 3 states and 764 transitions. [2024-11-16 23:45:36,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 261 transitions, 639 flow [2024-11-16 23:45:36,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 261 transitions, 635 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:36,443 INFO L231 Difference]: Finished difference. Result has 250 places, 245 transitions, 502 flow [2024-11-16 23:45:36,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=250, PETRI_TRANSITIONS=245} [2024-11-16 23:45:36,444 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -15 predicate places. [2024-11-16 23:45:36,444 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 245 transitions, 502 flow [2024-11-16 23:45:36,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:36,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:36,444 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:36,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:45:36,445 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:36,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1661884547, now seen corresponding path program 1 times [2024-11-16 23:45:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:36,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946283122] [2024-11-16 23:45:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:36,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:36,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:36,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946283122] [2024-11-16 23:45:36,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946283122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:36,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:36,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:36,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949379247] [2024-11-16 23:45:36,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:36,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:36,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:36,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:36,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 281 [2024-11-16 23:45:36,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 245 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:36,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:36,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 281 [2024-11-16 23:45:36,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:39,921 INFO L124 PetriNetUnfolderBase]: 14428/32703 cut-off events. [2024-11-16 23:45:39,922 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-16 23:45:40,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52534 conditions, 32703 events. 14428/32703 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 354793 event pairs, 7947 based on Foata normal form. 0/28649 useless extension candidates. Maximal degree in co-relation 40943. Up to 13745 conditions per place. [2024-11-16 23:45:40,259 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 50 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2024-11-16 23:45:40,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 261 transitions, 643 flow [2024-11-16 23:45:40,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:40,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2024-11-16 23:45:40,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9027283511269276 [2024-11-16 23:45:40,261 INFO L175 Difference]: Start difference. First operand has 250 places, 245 transitions, 502 flow. Second operand 3 states and 761 transitions. [2024-11-16 23:45:40,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 261 transitions, 643 flow [2024-11-16 23:45:40,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 261 transitions, 642 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:45:40,264 INFO L231 Difference]: Finished difference. Result has 250 places, 244 transitions, 503 flow [2024-11-16 23:45:40,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=503, PETRI_PLACES=250, PETRI_TRANSITIONS=244} [2024-11-16 23:45:40,265 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -15 predicate places. [2024-11-16 23:45:40,265 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 244 transitions, 503 flow [2024-11-16 23:45:40,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:40,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:40,267 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:40,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:45:40,267 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:40,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:40,268 INFO L85 PathProgramCache]: Analyzing trace with hash -171376897, now seen corresponding path program 1 times [2024-11-16 23:45:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:40,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031743997] [2024-11-16 23:45:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:40,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:40,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:40,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031743997] [2024-11-16 23:45:40,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031743997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:40,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:40,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:40,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464976350] [2024-11-16 23:45:40,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:40,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:40,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:40,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:40,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:40,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 281 [2024-11-16 23:45:40,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 244 transitions, 503 flow. Second operand has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:40,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:40,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 281 [2024-11-16 23:45:40,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:42,887 INFO L124 PetriNetUnfolderBase]: 11068/25050 cut-off events. [2024-11-16 23:45:42,887 INFO L125 PetriNetUnfolderBase]: For 864/864 co-relation queries the response was YES. [2024-11-16 23:45:42,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40703 conditions, 25050 events. 11068/25050 cut-off events. For 864/864 co-relation queries the response was YES. Maximal size of possible extension queue 1020. Compared 253634 event pairs, 4982 based on Foata normal form. 0/22704 useless extension candidates. Maximal degree in co-relation 31491. Up to 8803 conditions per place. [2024-11-16 23:45:43,093 INFO L140 encePairwiseOnDemand]: 279/281 looper letters, 49 selfloop transitions, 1 changer transitions 0/260 dead transitions. [2024-11-16 23:45:43,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 260 transitions, 640 flow [2024-11-16 23:45:43,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:43,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2024-11-16 23:45:43,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9074733096085409 [2024-11-16 23:45:43,095 INFO L175 Difference]: Start difference. First operand has 250 places, 244 transitions, 503 flow. Second operand 3 states and 765 transitions. [2024-11-16 23:45:43,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 260 transitions, 640 flow [2024-11-16 23:45:43,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 260 transitions, 636 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:43,103 INFO L231 Difference]: Finished difference. Result has 249 places, 243 transitions, 499 flow [2024-11-16 23:45:43,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=249, PETRI_TRANSITIONS=243} [2024-11-16 23:45:43,104 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -16 predicate places. [2024-11-16 23:45:43,104 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 243 transitions, 499 flow [2024-11-16 23:45:43,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:43,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:43,105 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:43,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:45:43,105 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:43,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:43,106 INFO L85 PathProgramCache]: Analyzing trace with hash 178963368, now seen corresponding path program 1 times [2024-11-16 23:45:43,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:43,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317571946] [2024-11-16 23:45:43,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:43,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:43,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:43,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317571946] [2024-11-16 23:45:43,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317571946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:43,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:43,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:43,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838311528] [2024-11-16 23:45:43,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:43,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:43,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:43,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:43,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 281 [2024-11-16 23:45:43,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 243 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:43,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:43,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 281 [2024-11-16 23:45:43,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:46,374 INFO L124 PetriNetUnfolderBase]: 14487/31582 cut-off events. [2024-11-16 23:45:46,374 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2024-11-16 23:45:46,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51474 conditions, 31582 events. 14487/31582 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 1302. Compared 335818 event pairs, 7988 based on Foata normal form. 0/27701 useless extension candidates. Maximal degree in co-relation 40321. Up to 13706 conditions per place. [2024-11-16 23:45:46,634 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 50 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2024-11-16 23:45:46,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 259 transitions, 640 flow [2024-11-16 23:45:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2024-11-16 23:45:46,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9027283511269276 [2024-11-16 23:45:46,636 INFO L175 Difference]: Start difference. First operand has 249 places, 243 transitions, 499 flow. Second operand 3 states and 761 transitions. [2024-11-16 23:45:46,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 259 transitions, 640 flow [2024-11-16 23:45:46,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 259 transitions, 639 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:45:46,639 INFO L231 Difference]: Finished difference. Result has 249 places, 242 transitions, 500 flow [2024-11-16 23:45:46,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=249, PETRI_TRANSITIONS=242} [2024-11-16 23:45:46,640 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -16 predicate places. [2024-11-16 23:45:46,640 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 242 transitions, 500 flow [2024-11-16 23:45:46,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:46,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:46,641 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:46,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:45:46,641 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:46,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:46,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1811856490, now seen corresponding path program 1 times [2024-11-16 23:45:46,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:46,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478467925] [2024-11-16 23:45:46,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:46,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:46,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478467925] [2024-11-16 23:45:46,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478467925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:46,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:46,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:46,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100279372] [2024-11-16 23:45:46,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:46,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:46,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:46,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 281 [2024-11-16 23:45:46,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 242 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:46,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:46,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 281 [2024-11-16 23:45:46,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:49,407 INFO L124 PetriNetUnfolderBase]: 10372/25666 cut-off events. [2024-11-16 23:45:49,407 INFO L125 PetriNetUnfolderBase]: For 861/861 co-relation queries the response was YES. [2024-11-16 23:45:49,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40457 conditions, 25666 events. 10372/25666 cut-off events. For 861/861 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 277892 event pairs, 3395 based on Foata normal form. 0/22512 useless extension candidates. Maximal degree in co-relation 31513. Up to 7615 conditions per place. [2024-11-16 23:45:49,617 INFO L140 encePairwiseOnDemand]: 279/281 looper letters, 49 selfloop transitions, 1 changer transitions 0/258 dead transitions. [2024-11-16 23:45:49,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 258 transitions, 637 flow [2024-11-16 23:45:49,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2024-11-16 23:45:49,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9074733096085409 [2024-11-16 23:45:49,619 INFO L175 Difference]: Start difference. First operand has 249 places, 242 transitions, 500 flow. Second operand 3 states and 765 transitions. [2024-11-16 23:45:49,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 258 transitions, 637 flow [2024-11-16 23:45:49,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 258 transitions, 633 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:49,627 INFO L231 Difference]: Finished difference. Result has 248 places, 241 transitions, 496 flow [2024-11-16 23:45:49,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=248, PETRI_TRANSITIONS=241} [2024-11-16 23:45:49,628 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -17 predicate places. [2024-11-16 23:45:49,628 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 241 transitions, 496 flow [2024-11-16 23:45:49,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:49,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:49,629 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:49,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:45:49,629 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread4Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:49,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1771997538, now seen corresponding path program 1 times [2024-11-16 23:45:49,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:49,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004880594] [2024-11-16 23:45:49,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:49,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:49,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:49,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004880594] [2024-11-16 23:45:49,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004880594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:49,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:49,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:49,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243578275] [2024-11-16 23:45:49,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:49,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:49,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:49,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 281 [2024-11-16 23:45:49,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 241 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:49,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:49,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 281 [2024-11-16 23:45:49,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:52,640 INFO L124 PetriNetUnfolderBase]: 14972/27283 cut-off events. [2024-11-16 23:45:52,641 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-16 23:45:52,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47682 conditions, 27283 events. 14972/27283 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 1323. Compared 244649 event pairs, 8588 based on Foata normal form. 0/24254 useless extension candidates. Maximal degree in co-relation 37304. Up to 14363 conditions per place. [2024-11-16 23:45:52,919 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 50 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2024-11-16 23:45:52,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 257 transitions, 637 flow [2024-11-16 23:45:52,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2024-11-16 23:45:52,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9027283511269276 [2024-11-16 23:45:52,922 INFO L175 Difference]: Start difference. First operand has 248 places, 241 transitions, 496 flow. Second operand 3 states and 761 transitions. [2024-11-16 23:45:52,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 257 transitions, 637 flow [2024-11-16 23:45:52,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 257 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:45:52,926 INFO L231 Difference]: Finished difference. Result has 248 places, 240 transitions, 497 flow [2024-11-16 23:45:52,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=248, PETRI_TRANSITIONS=240} [2024-11-16 23:45:52,927 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -17 predicate places. [2024-11-16 23:45:52,927 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 240 transitions, 497 flow [2024-11-16 23:45:52,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:52,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:52,928 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:52,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:45:52,929 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread4Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-16 23:45:52,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:52,929 INFO L85 PathProgramCache]: Analyzing trace with hash 111391520, now seen corresponding path program 1 times [2024-11-16 23:45:52,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:52,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011097382] [2024-11-16 23:45:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:52,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:45:52,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:52,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011097382] [2024-11-16 23:45:52,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011097382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:52,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:52,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:52,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958538267] [2024-11-16 23:45:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:52,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:52,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:52,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 281 [2024-11-16 23:45:52,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 240 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:45:52,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:52,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 281 [2024-11-16 23:45:52,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand